id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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hep-lat/9210006 | Basis States for Hamiltonian QCD with Dynamical Quarks | We discuss the construction of basis states for Hamiltonian QCD on the
lattice, in particular states with dynamical quark pairs. We calculate the
matrix elements of the operators in the QCD Hamiltonian between these states.
Along with the ``harmonic oscillator'' states introduced in previous pure SU(3)
work, these stat... | 1992-10-02 | 2007-05-23 | [
"hep-lat"
] | Timothy E. Vaughan |
hep-lat/9210005 | Fermion Doubling and Gauge Invariance on Random Lattices | Random-lattice fermions have been shown to be free of the doubling problem if
there are no interactions or interactions of a non-gauge nature. On the other
hand, gauge interactions impose stringent constraints as expressed by the
Ward-Takahashi identities which could revive the free-field suppressed doubler
modes in lo... | 1992-10-02 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | C J Griffin and T D Kieu |
hep-lat/9210004 | Multicritical Points in a Lattice Yukawa Model with the Wilson-Yukawa
Coupling | For a lattice regularized chiral-invariant $SU(2)_L\times~SU(2)_R$
fermion-scalar model with a Yukawa coupling $y$ and a Wilson-Yukawa coupling
$w$, we investigate the phase structure and in particular show the existence of
the multicritical line, in the strong Yukawa and/or Wilson Yukawa coupling
region, at which four... | 1992-10-02 | 2009-10-22 | [
"hep-lat"
] | T. Ebihara and K.-I. Kondo |
hep-lat/9210001 | Non-uniform measure in 4d simplicial quantum gravity | Four-dimensional euclidean quantum gravity has been studied as a discrete
model based on dynamical triangulations by Ambjorn and Jurkiewicz and by
Agishtein and Migdal. We discuss a particular implementation of a Monte Carlo
simulation of simplicial quantum gravity. As an application we introduce a
non-uniform measure ... | 1992-10-01 | 2008-11-26 | [
"hep-lat"
] | Bernd Bruegmann |
hep-lat/9210002 | 4d Simplicial Quantum Gravity with a Non-Trivial Measure | We study 4d simplicial quantum gravity in the dynamical triangulation
approach with a non-trivial class of measures. We find that the measure
contribution plays an important role, influencing the phase diagram and the
nature of the (possible) critical theory. We discuss how the lattice theory
could be used to fix the q... | 1992-10-01 | 2008-11-26 | [
"hep-lat",
"gr-qc",
"hep-th"
] | Bernd Bruegmann and E. Marinari |
hep-lat/9210003 | The Running Coupling from SU(3) Gauge Theory | We present high precision results on the static quark-antiquark-potential on
32^4 and smaller lattices, using the standard Wilson action at BETA = 6.0, 6.2,
6.4, and 6.8 on the Connection Machine CM-2. Within our statistical errors (1%)
we did not observe any finite size effects affecting the potential values, on
varyi... | 1992-10-01 | 2009-10-22 | [
"hep-lat"
] | G.S. Bali and K. Schilling |
hep-lat/9209027 | Chern-Simons term in the 4-dimensional SU(2) Higgs Model | Using Seiberg's definition for the geometric charge in SU(2) lattice gauge
theory, we have managed to apply it also to the Chern-Simons term. We checked
the periodic structure and determined the Chern-Simons density on small
lattices $L^4$ and $L^3 \times 2,\, 4$ with $L=4,\, 6,\mbox{ and }8$ near the
critical region i... | 1992-09-30 | 2009-10-22 | [
"hep-lat"
] | F. Karsch, M. L. Laursen, T. Neuhaus and B. Plache |
hep-lat/9209026 | Bose Condensation and $Z_N$ Symmetry Breaking in the Mixed Model of
Induced QCD | The mixed model of the large $ N $ induced QCD, with $ N_f \ll N $ flavors of
heavy fermions in fundamental representation, is solved in the local limit. The
$ Z_N$ symmetry is broken spontaneously in the large $ N $ limit, evading the
Elitzur "no-go" theorem. As a result of this symmetry breaking, there is the
Bose co... | 1992-09-29 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | A.A. Migdal |
hep-lat/9209025 | Monte Carlo simulation of lattice ${\rm CP}^{N-1}$ models at large N | In order to check the validity and the range of applicability of the 1/N
expansion, we performed numerical simulations of the two-dimensional lattice
CP(N-1) models at large N, in particular we considered the CP(20) and the
CP(40) models. Quantitative agreement with the large-N predictions is found for
the correlation ... | 1992-09-28 | 2009-10-22 | [
"hep-lat"
] | Ettore Vicari (Dipartimento di Fisica dell'Universita`, I-56126 Pisa,
Italy) |
hep-lat/9209024 | Multicanonical Cluster Algorithm and the 2-D 7-State Potts Model | I present a hybrid-like two-step algorithm, which combines a microcanonical
update of a spin system using demons, with a multicanonical demon refresh. The
algorithm is free from the supercritical slowing down that burdens the
canonical methods: the exponential increase of the tunnelling time between the
metastable stat... | 1992-09-25 | 2009-10-22 | [
"hep-lat"
] | K. Rummukainen |
hep-lat/9209023 | Modified $U(1)$ lattice gauge theory: towards realistic lattice QED | We study properties of the compact $~4D~$ $U(1)$ lattice gauge theory with
monopoles {\it removed}. Employing Monte Carlo simulations we calculate
correlators of scalar, vector and tensor operators at zero and nonzero momenta
$~\vec{p}~$. We confirm that the theory without monopoles has no phase
transition, at least, i... | 1992-09-23 | 2007-05-23 | [
"hep-lat"
] | V.G. Bornyakov, V.K. Mitrjushkin and M. M\"uller-Preussker |
hep-lat/9209022 | On the Viability of Lattice Perturbation Theory | In this paper we show that the apparent failure of QCD lattice perturbation
theory to account for Monte Carlo measurements of perturbative quantities
results from choosing the bare lattice coupling constant as the expansion
parameter. Using instead ``renormalized'' coupling constants defined in terms
of physical quanti... | 1992-09-22 | 2009-10-22 | [
"hep-lat"
] | G.P.Lepage and P.B.Mackenzie |
hep-lat/9209021 | Neural multigrid for gauge theories and other disordered systems | We present evidence that multigrid works for wave equations in disordered
systems, e.g. in the presence of gauge fields, no matter how strong the
disorder, but one needs to introduce a "neural computations" point of view into
large scale simulations: First, the system must learn how to do the simulations
efficiently, t... | 1992-09-21 | 2011-04-20 | [
"hep-lat"
] | M. Baeker, T. Kalkreuter, G. Mack and M. Speh |
hep-lat/9209020 | The Phase Diagram of Fluid Random Surfaces with Extrinsic Curvature | We present the results of a large-scale simulation of a Dynamically
Triangulated Random Surface with extrinsic curvature embedded in
three-dimensional flat space. We measure a variety of local observables and use
a finite size scaling analysis to characterize as much as possible the regime
of crossover from crumpled to... | 1992-09-18 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | Mark Bowick, Paul Coddington, Leping Han, Geoffrey Harris and Enzo
Marinari |
hep-lat/9209019 | Multi-quark energies in QCD | Four-quark potentials for $SU(2)$ are evaluated in the static limit with the
quenched approximation -- using a lattice of $16^3\times 32$ and $\beta=2.4$.
The four quarks are restricted to the corners of rectangles with sides upto
seven lattice spacings long. The results are analysed in terms of a strategy
based on int... | 1992-09-15 | 2008-11-26 | [
"hep-lat"
] | A.M.Green, C.Michael and J.E.Paton |
hep-lat/9209018 | Lyapunov Exponent of SU(3) Gauge Theory | The classical SU(3) gauge theory is shown to be deterministic chaotic. Its
largest Lyapunov exponent is dertermined, from which a short time scale of
thermalization of a pure gluon system is estimated. The connection to gluon
damping rate is discussed. | 1992-09-14 | 2010-11-01 | [
"hep-lat"
] | C. Gong |
hep-lat/9209017 | Finite-Size Scaling Study of the Three-Dimensional Classical Heisenberg
Model | We use the single-cluster Monte Carlo update algorithm to simulate the
three-dimensional classical Heisenberg model in the critical region on simple
cubic lattices of size $L^3$ with $L=12, 16, 20, 24, 32, 40$, and $48$. By
means of finite-size scaling analyses we compute high-precision estimates of
the critical temper... | 1992-09-11 | 2009-10-22 | [
"hep-lat"
] | Christian Holm and Wolfhard Janke |
hep-lat/9209016 | Direct Monte Carlo Measurement of the Surface Tension in Ising Models | I present a cluster Monte Carlo algorithm that gives direct access to the
interface free energy of Ising models. The basic idea is to simulate an
ensemble that consists of both configurations with periodic and with
antiperiodic boundary conditions. A cluster algorithm is provided that
efficently updates this joint ense... | 1992-09-10 | 2009-10-22 | [
"hep-lat"
] | Martin Hasenbusch |
hep-lat/9209015 | Chern-Simons term and Topological Charge on the Lattice | In a somewhat overlooked work by Seiberg, a definition of the topological
charge for SU(N) lattice fields was given. Here, it is shown that Seibergs and
L\"{u}schers charge definition are related up to the section of the bundle.
With the continued interest in baryon number violating processes, Seibergs
paper is useful ... | 1992-09-09 | 2007-05-23 | [
"hep-lat"
] | M.L.Laursen |
hep-lat/9209014 | Glueballs and Hybrid Mesons | We discuss states in the meson spectrum which have explicit gluonic
components. Glueballs (with no valence quarks) and hybrid mesons (with valence
quarks) are both reviewed. We present in some detail lattice simulation
results. ( to appear in proceedings of QCD-20 years, Aachen Workshop) | 1992-09-08 | 2007-05-23 | [
"hep-lat",
"hep-ph"
] | Chris Michael |
hep-lat/9209013 | Surface Tension, Surface Stiffness, and Surface Width of the
3-dimensional Ising Model on a Cubic Lattice | We compute properties of the interface of the 3-dimensional Ising model for a
wide range of temperatures, covering the whole region from the low temperature
domain through the roughening transition to the bulk critical point. The
interface tension sigma is obtained by integrating the surface energy density
over the inv... | 1992-09-07 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | Martin Hasenbusch and Klaus Pinn |
hep-lat/9209012 | Rotational Symmetry and Regularization Dependence in the
$\Phi^4_4$-Model | We study the one component $\Phi^4$ model for four different lattice actions
in the Gaussian limit and for the Ising model in the broken phase. Emphasis is
put on the euclidean invariance properties of the boson propagator. A measure
of the violation of rotational symmetry serves as a tool to compare the
regularization... | 1992-09-07 | 2010-11-19 | [
"hep-lat"
] | C.B. Lang and U. Winkler |
hep-lat/9209011 | A quantitative study of the Kosterlitz-Thouless phase transition in a
system of two-dimensional plane rotators ( XY model ) by high temperature
expansions through $\beta^{20}$ | High temperature series expansions of the spin-spin correlation function for
the plane rotator (or XY) model on the square lattice are extended by three
terms through order $\beta^{20}$. Tables of the expansion coefficients are
reported for the correlation function spherical moments of order $l=0,1,2$. The
expansion co... | 1992-09-04 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | P. Butera and M. Comi (Istituto Nazionale di Fisica Nucleare
Dipartimento di Fisica, Universit\`a di Milano Via Celoria 16, 20133 Milano,
Italy) |
hep-lat/9209009 | Monopole Percolation and The Universality Class of the Chiral Transition
in Four Flavor Noncompact Lattice QED | We simulate four flavor noncompact lattice QED using the Hybrid Monte Carlo
algorithm on $10^4$ and $16^4$ lattices. Measurements of the monopole
susceptibility and the percolation order parameter indicate a transition at
$\beta = {1/e^2} = .205(5)$ with critical behavior in the universality class of
four dimensional p... | 1992-09-04 | 2009-10-22 | [
"hep-lat"
] | A. Kocic, J.B. Kogut and K.C. Wang |
hep-lat/9209010 | Universal Properties of Chiral Simmetry Breaking | We discuss chiral symmetry breaking critical points from the perspective of
PCAC, correlation length scaling and the chiral equation of state. A scaling
theory for the ratio $R_\pi$ of the pion to sigma masses is presented. The
Goldstone character of the pion and properties of the longitudinal and
transverse chiral sus... | 1992-09-04 | 2009-10-22 | [
"hep-lat"
] | A. Kocic, J.B. Kogut and M.-P. Lombardo |
hep-lat/9209007 | SU(2) Potentials from Large Lattices | We measure accurate values of the inter-quark potentials on a $48^{3}56$
lattice with SU(2) pure gauge theory at $ \beta =2.85$. The scale is set by
extracting the string tension - we obtain ${\sqrt K}a=0.063(3)$ at $\beta
=2.85.$ From a careful study of the small-$R$ potentials in the region 2 GeV $<
R^{-1} < 5$ GeV, ... | 1992-09-03 | 2011-02-19 | [
"hep-lat"
] | The UKQCD Collaboration: S.P. Booth, A. Hulsebos, A.C. Irving, A.
McKerrell, C. Michael, P.S. Spencer, P.W. Stephenson |
hep-lat/9209008 | The Running Coupling from SU(3) Lattice Gauge Theory | {}From an accurate determination of the inter-quark potential, one can study
the running coupling constant for a range of $R$-values and hence estimate the
scale $\Lambda_{\msbar} $. Detailed results are presented for $SU(3)$ pure
gauge theory. | 1992-09-03 | 2011-02-19 | [
"hep-lat"
] | The UKQCD Collaboration: S.P. Booth, D.S. Henty, A. Hulsebos, A.C.
Irving, C. Michael, P.W. Stephenson |
hep-lat/9209006 | Capillary Waves in Binder's Approach to the Interface Tension | In Binder's approach the reduced interface tension sigma of the Ising model
in the broken phase is determined from the finite volume effects of the
partition function Z(M) at fixed total magnetization M. For small |M| the
partition function of a system of size L^d with periodic boundary conditions is
dominated by confi... | 1992-09-03 | 2007-05-23 | [
"hep-lat",
"cond-mat"
] | U.-J. Wiese |
hep-lat/9209005 | High Precision Simulation Techniques for Lattice Field Theory | An overview is given over the recently developed and now widely used Monte
Carlo algorithms with reduced or eliminated critical slowing down. The basic
techniques are overrelaxation, cluster algorithms and multigrid methods. With
these tools one is able to probe much closer than before the universal
continuum behavior ... | 1992-09-02 | 2011-04-15 | [
"hep-lat"
] | Ulli Wolff (CERN) |
hep-lat/9209003 | Chern-Simons Currents and Chiral Fermions on the Lattice | We compute the Chern-Simons current induced by Wilson fermions on a $d=2n+1$
dimensional lattice, making use of a topological interpretation of the momentum
space fermion propagator as a map from the torus to the sphere, $T^{d}\to
S^{d}$. These mappings are shown to fall in different homotopy classes
depending on the v... | 1992-09-01 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | Maarten Golterman, Karl Jansen and David Kaplan |
hep-lat/9209004 | The Finite Temperature Phase Diagram of a U(1) Higgs-Yukawa Model | The finite temperature phase diagram of a U(1) Higgs-Yukawa model at a finite
value of the scalar self coupling $\lambda$ is investigated by means of a
large-$N_f$ calculation and numerical simulations. The phase diagram is similar
to the one at zero temperature and shows a ferromagnetic, two symmetric and an
antiferro... | 1992-09-01 | 2009-10-22 | [
"hep-lat"
] | Karl Jansen |
hep-lat/9209001 | Asymptotic Freedom and Euclidean Quantum Gravity | Pure SU(2) gauge theory is the simplest asymptotically free theory in four
dimensions. To investigate Euclidean quantum gravity effects in a fundamental
length scenario, we simulate 4$d$ SU(2) lattice gauge theory on a dynamically
coupled Regge skeleton. The fluctuations of the skeleton are governed by the
standard Reg... | 1992-09-01 | 2009-10-22 | [
"hep-lat"
] | Bernd A. Berg, Balasubramanian Krishnan and Mohammad Katoot |
hep-lat/9209002 | Critical Momenta of Lattice Chiral Fermions | We determine the critical momenta for chiral fermions in the domain wall
model recently suggested by Kaplan. For a wide range of domain wall masses $m$
and Wilson couplings $r$ we explicitly exhibit the regions in momentum space
where the fermions are chiral. We compare the critical momenta for the
infinitely large sys... | 1992-09-01 | 2009-10-22 | [
"hep-lat"
] | Karl Jansen and Martin Schmaltz |
hep-lat/9208030 | Lattice Calculation of QCD Vacuum Correlation Functions | The first exploratory calculations of QCD vacuum correlation functions on a
lattice are reported. Qualitative agreement with phenomenological results is
obtained in channels for which experimental data are available, and these
correlation functions are shown to be useful in exploring approximations based
on sum rules a... | 1992-08-28 | 2007-05-23 | [
"hep-lat"
] | M.-C. Chu, J. M. Grandy, S. Huang and J. W. Negele |
hep-lat/9208029 | A Study of the $N=2$ Kazakov-Migdal Model | We study numerically the SU(2) Kazakov-Migdal model of `induced QCD'. In
contrast to our earlier work on the subject we have chosen here {\it not} to
integrate out the gauge fields but to keep them in the Monte Carlo simulation.
This allows us to measure observables associated with the gauge fields and
thereby address ... | 1992-08-27 | 2009-10-22 | [
"hep-lat"
] | Sinya Aoki, Andreas Gocksch and Yue Shen |
hep-lat/9208027 | Non-perturbative analysis, Gribov horizons and the boundary of the
fundamental domain | In this contribution to the proceedings we will describe some of the details
for constructing the Gribov horizon and the boundary of the fundamental modular
domain, when restricting to some low energy modes of pure SU(2) gauge theory in
a spherical spatial geometry. The fundamental domain is a one-to-one
representation... | 1992-08-27 | 2007-05-23 | [
"hep-lat",
"hep-th"
] | Pierre van Baal and R.E. Cutkosky |
hep-lat/9208026 | Numerical Study of Finite Size Scaling for First Order Phase Transitions | I present results of simulations of the q=10 and q=20 2-d Potts models in the
transition region. The asymptotic finite size behavior sets in only for
extremely large lattices. We learn from this simulation that finite size
scaling cannot be used to decide that a transition is first order. | 1992-08-27 | 2016-04-26 | [
"hep-lat",
"cond-mat"
] | Alain Billoire |
hep-lat/9208028 | Running Coupling and the Lambda-Parameter from SU(3) Lattice Simulations | We present new results on the static qq-potential from high statistics
simulations on 32^4 and smaller lattices, using the standard Wilson beta = 6.0,
6.4, and 6.8. Within our statistical errors we do not observe any finite size
effects affecting the potential values, on varying the spatial lattice extent
from 0.9fm up... | 1992-08-27 | 2016-08-31 | [
"hep-lat"
] | Gunnar S. Bali and Klaus Schilling |
hep-lat/9208025 | Decuplet Baryon Structure from Lattice QCD | The electromagnetic properties of the SU(3)-flavor baryon decuplet are
examined within a lattice simulation of quenched QCD. Electric charge radii,
magnetic moments, and magnetic radii are extracted from the E0 and M1 form
factors. Preliminary results for the E2 and M3 moments are presented giving the
first model indep... | 1992-08-26 | 2008-11-26 | [
"hep-lat",
"hep-ph"
] | Derek B. Leinweber, Terrence Draper, and R.M. Woloshyn |
hep-lat/9208023 | Mixed Model of Induced QCD | The problems with the $Z_N$ symmetry breaking in the induced QCD are
analyzed. We compute the Wilson loops in the strong coupling phase, but we do
not find the $Z_N$ symmetry breaking, for arbitrary potential. We suggest to
bypass this problem by adding to the model a heavy fermion field in a
fundamental representation... | 1992-08-22 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | A.A. Migdal |
hep-lat/9208024 | Finite-Size Scaling on the Ising Coexistence Line | We report tests of finite-size scaling ansatzes in the low temperature phase
of the two-dimensional Ising model. For moments of the magnetisation density,
we find good agreement with the new ansatz of Borgs and Koteck\'y, and clear
evi consequences of the convexity of the free energy are not adequately treated
in eithe... | 1992-08-22 | 2011-04-15 | [
"hep-lat",
"cond-mat"
] | S.Gupta and A.Irbaeck |
hep-lat/9208020 | The confined-deconfined Interface Tension and the Spectrum of the
Transfer Matrix | The reduced tension $\sigma_{cd}$ of the interface between the confined and
the deconfined phase of $SU(3)$ pure gauge theory is related to the finite size
effects of the first transfer matrix eigenvalues. A lattice simulation of the
transfer matrix spectrum at the critical temperature $T_c = 1/L_t$ yields
$\sigma_{cd}... | 1992-08-21 | 2009-10-22 | [
"hep-lat"
] | B. Grossmann, M.L. Laursen, T. Trappenberg and U.-J. Wiese |
hep-lat/9208022 | Four - Fermi Theories in Fewer Than Four Dimensions | Four-fermi models in dimensionality $2<d<4$ exhibit an ultra-violet stable
renormalization group fixed point at a strong value of the coupling constant
where chiral symmetry is spontaneously broken. The resulting field theory
describes relativistic fermions interacting non-trivially via exchange of
scalar bound states.... | 1992-08-21 | 2016-08-31 | [
"hep-lat"
] | Simon Hands, Aleksandar Kocic and John B. Kogut |
hep-lat/9208021 | Spectroscopy, Equation Of State And Monopole Percolation In Lattice QED
With Two Flavors | Non-compact lattice QED with two flavors of light dynamical quarks is
simulated on $16^4$ lattices, and the chiral condensate, monopole density and
susceptibility and the meson masses are measured. Data from relatively high
statistics runs at relatively small bare fermion masses of 0.005, 0.01, 0.02
and 0.03 (lattice u... | 1992-08-21 | 2009-10-22 | [
"hep-lat"
] | S.J. Hands, A. Kocic, J.B. Kogut, R.L. Renken, D.K. Sinclair and K.C.
Wang |
hep-lat/9208019 | Fast vectorized algorithm for the Monte Carlo Simulation of the Random
Field Ising Model | An algoritm for the simulation of the 3--dimensional random field Ising model
with a binary distribution of the random fields is presented. It uses
multi-spin coding and simulates 64 physically different systems simultaneously.
On one processor of a Cray YMP it reaches a speed of 184 Million spin updates
per second. Fo... | 1992-08-21 | 2009-10-22 | [
"hep-lat"
] | H. Rieger |
hep-lat/9208018 | The Hyperfine Splitting in Charmonium: Lattice Computations Using the
Wilson and Clover Fermion Actions | We compute the hyperfine splitting $m_{J/\psi}-m_{\eta_c}$ on the lattice,
using both the Wilson and $O(a)$-improved (clover) actions for quenched quarks.
The computations are performed on a $24^3\times48$ lattice at $\beta = 6.2$,
using the same set of 18 gluon configurations for both fermion actions. We find
that the... | 1992-08-21 | 2011-02-19 | [
"hep-lat"
] | UKQCD Collaboration: C.R. Allton, C.T. Sachrajda, S.P. Booth, K.C.
Bowler, D.S. Henty, R.D. Kenway, B.J. Pendleton, D.G. Richards, J.N. Simone,
A.D. Simpson, C. Michael and P.W. Stephenson |
hep-lat/9208015 | Duality in Long-Range Ising Ferromagnets | It is proved that for a system of spins $\sigma _i = \pm 1$ having an
interaction energy $-\sum K_{ij} \sigma _i \sigma _j $ with all the $K_{ij}$
strictly positive,one can construct a dual formulation by associating a dual
spin $S_{ijk} = \pm 1$ to each triplet of distinct sites $i,j$ and $k$. The
dual interaction ene... | 1992-08-20 | 2008-11-26 | [
"hep-lat",
"hep-th"
] | Yannick Meurice |
hep-lat/9208017 | The triviality bound on the Higgs mass; its value and what it means | Older lattice work exploring the Higgs mass triviality bound is briefly
reviewed. It indicates that a strongly interacting scalar sector in the minimal
standard model cannot exist; on the other hand low energy QCD phenomenology
might be interpreted as an indication that it could. We attack this puzzle
using the $1/N$ e... | 1992-08-20 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | H. Neuberger, U. M. Heller, M. Klomfass, P. Vranas |
hep-lat/9208016 | Embedding Z(3) in SU(3) | We consider the design of a non-local MonteCarlo algorithm for $SU(3)$
lattice systems according to the idea of {\em embedding} the degrees of freedom
corresponding to the center of the group $Z(3)$. As a crucial ingredient to
reach this goal, we present a practical implementation of a cluster algorithm
for $Z(3)$ syst... | 1992-08-20 | 2007-05-23 | [
"hep-lat"
] | Enrico Onofri |
hep-lat/9208014 | Noncomputability Arising In Dynamical Triangulation Model Of
Four-Dimensional Quantum Gravity | Computations in Dynamical Triangulation Models of Four-Dimensional Quantum
Gravity involve weighted averaging over sets of all distinct triangulations of
compact four-dimensional manifolds. In order to be able to perform such
computations one needs an algorithm which for any given $N$ and a given compact
four-dimension... | 1992-08-18 | 2009-10-22 | [
"hep-lat"
] | A. Nabutovsky, R. Ben-Av |
hep-lat/9208013 | Gauge invariant extremization on the lattice | Recently, a method was proposed and tested to find saddle points of the
action in simulations of non-abelian lattice gauge theory. The idea, called
`extremization', is to minimize $\int(\dl S/\dl A_\mu)^2$. The method was
implemented in an explicitly gauge variant way, however, and gauge dependence
showed up in the res... | 1992-08-16 | 2009-10-22 | [
"hep-lat"
] | A.J. van der Sijs |
hep-lat/9208012 | Scaling and Asymptotic Scaling in the SU(2) Gauge Theory | We determine the critical couplings for the deconfinement phase transition in
$SU(2)$ gauge theory on $N_\tau \times N_\sigma^3$ lattices with $N_\tau = 8$
and 16 and $N_\sigma$ varying between 16 and 48. A comparison with string
tension data shows scaling of the ratio $T_c / \sqrt{\sigma}$ in the entire
coupling regim... | 1992-08-14 | 2009-10-22 | [
"hep-lat"
] | J. Fingberg, U. M. Heller and F. Karsch |
hep-lat/9208011 | An Improved Acceptance Procedure for the Hybrid Monte Carlo Algorithm | The probability of accepting a candidate move in the hybrid Monte Carlo
algorithm can be increased by considering a transition to be between windows of
several states at the beginning and end of the trajectory, with a state within
the selected window being chosen according to the Boltzmann probabilities. The
detailed b... | 1992-08-12 | 2008-02-03 | [
"hep-lat"
] | R. M. Neal |
hep-lat/9208007 | Introduction to Lattice Gaugefixing and Effective Quark and Gluon Masses | This talk was presented to a non-lattice audience at the June, 1992 Paris
Workshop on QCD Vacuum Structure. We report on the status of quark and gluon
propagators in quenched, gaugefixed lattice QCD. In Landau gauge we find that
the effective quark mass in the chiral limit is $M_q \sim 350(40)MeV$. Quark
and gluon prop... | 1992-08-12 | 2007-05-23 | [
"hep-lat",
"cond-mat",
"hep-ph"
] | Claude Bernard, Amarjit Soni, Ken Yee |
hep-lat/9208006 | Continuum Gauge Fields from Lattice Gauge Fields | On the lattice some of the salient features of pure gauge theories and of
gauge theories with fermions in complex representations of the gauge group seem
to be lost. These features can be recovered by considering part of the theory
in the continuum. The prerequisite for that is the construction of continuum
gauge field... | 1992-08-12 | 2009-10-22 | [
"hep-lat"
] | M. Goeckeler, A. S. Kronfeld, G. Schierholz and U.-J. Wiese |
hep-lat/9208009 | A New Technique for Measuring the Strangemess Content of the Proton on
the Lattice | A new technique for computing the strangeness content of the proton on the
lattice is described. It is applied to the calculation of the strange quark
contribution to the proton's spin, specifically to the evaluation of the proton
matrix element of the strange quark axial current. Preliminary results are not
in disagre... | 1992-08-12 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Jeffrey E. Mandula and Michael C. Ogilvie |
hep-lat/9208008 | Phase Transitions in Induced QCD | The variety of the phase transitions in Induced QCD are studied. Depending
upon the parameters in the scalar field potential, there could be infinite
number of fixed points, with different critical behavior. The integral equation
for the density of the eigenvalues of the scalar field are generalized to the
weak couplin... | 1992-08-12 | 2015-06-25 | [
"hep-lat",
"hep-th"
] | A.A.Migdal |
hep-lat/9208010 | Gribov Copies and Smeared Correlation Functions in Lattice QCD | We study the influence of Gribov copies in the Coulomb gauge on the smeared
hadronic correlation functions that are involved in the determination of the B
meson decay constant. We find that the residual gauge freedom associated to
Gribov copies induces observable noise effects, though at the level of
numerical accuracy... | 1992-08-12 | 2009-10-22 | [
"hep-lat"
] | M.L. Paciello, C. Parrinello, S. Petrarca, B. Taglienti, A. Vladikas |
hep-lat/9208005 | Comparison of Lattice Coulomb Gauge Wave Functions in Quenched
Approximation and with Dynamical Fermions | We present a comparison of Coulomb gauge wave functions from $6/{g^2}=6.0$
quenched simulations with two simulations which include the effects of
dynamical fermions: simulations with two flavors of dynamical staggered quarks
and valence Wilson quarks at $6/{g^2}=5.6$ and simulations with two flavors of
dynamical Wilson... | 1992-08-07 | 2009-10-22 | [
"hep-lat"
] | M. Hecht, et al. (High Energy Monte Carlo Grand Challenge) |
hep-lat/9208004 | A Rigourous Treatment of the Lattice Renormalization Problem of F_B | The $B$-meson decay constant can be measured on the lattice using a $1/m_b$
expansion. To relate the physical quantity to Monte Carlo data one has to know
the renormalization coefficient, $Z$, between the lattice operators and their
continuum counterparts. We come back to this computation to resolve
discrepancies found... | 1992-08-05 | 2010-03-19 | [
"hep-lat"
] | Ph.Boucaud, J-P Leroy, J. Micheli, O. P\`ene and G.C Rossi |
hep-lat/9208003 | A Parallel Cluster Labeling Method for Monte Carlo Dynamics | We present an algorithm for cluster dynamics to efficiently simulate large
systems on MIMD parallel computers with large numbers of processors. The method
divides physical space into rectangular cells which are assigned to processors
and combines a serial local procedure with a nearest neighbor relaxation
process. By c... | 1992-08-03 | 2009-10-22 | [
"hep-lat"
] | Mike Flanigan and Pablo Tamayo |
hep-lat/9208002 | Chern-Simons term in the 4-dimensional SU(2) Higgs model | Using a variation of Lueschers geometric charge definition for SU(2) lattice
gauge theory, we have managed to give a geometric expression for it's
Chern-Simons ter. From this definition we have checked the periodic structure.
we determined the Chern-Simons density for symmetric and asymmetric lattices
near the critical... | 1992-08-03 | 2011-04-20 | [
"hep-lat"
] | F.Karsch, M.L.Laursen, T.Neuhaus, B.Plache and U.-J.Wiese |
hep-lat/9208001 | Non-Exponential Relaxation Time Scales in Disordered Systems: an
Application to Protein Dynamics | We study the dynamics of an heteropolymeric chain relaxing toward a new
equilibrium configuration after the action of an external perturbation. We
compare the results from Monte Carlo simulations with the results of a Langevin
normal mode decomposition. We discuss, for sake of comparison, the case of an
ordered homopol... | 1992-08-02 | 2008-02-03 | [
"hep-lat",
"cond-mat",
"q-bio.QM"
] | G. Iori, E. Marinari and G. Parisi |
hep-lat/9207033 | A Lower Bound on $T_{SR}/{m_{\rm H}}$ in the O(4) Model on Anisotropic
Lattices | Results of an investigation of the $O(4)$ spin model at finite temperature
using anisotropic lattices are presented. In both the large $N$ approximation
and numerical simulations using the Wolff cluster algorithm we find that the
ratio of the symmetry restoration temperature $T_{\rm SR}$ to the Higgs mass
$m_{\rm H}$ i... | 1992-07-31 | 2009-10-22 | [
"hep-lat"
] | R.V. Gavai, U. M. Heller, F. Karsch, T. Neuhaus and B. Plache |
hep-lat/9207034 | Chiral Yukawa models in the planar limit | We consider the most general renormalizable chiral Yukawa model with
$SU(3)_{\rm color}$ replaced by $SU(N_c)$, $SU(2)_{\rm L}$ replaced by $SU(N_w
)$ and $U(1)_{Y}$ replaced by $U(1)^{N_w -1}$ in the limit $N_c
\rightarrow\infty$, $N_w \rightarrow\infty$ with the ratio
$\rho=\sqrt{{N_w}\over{N_c}} \ne 0,\infty$ held f... | 1992-07-31 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | G. Bathas and H. Neuberger |
hep-lat/9207035 | The Phase Diagram of the $N=2$ Kazakov-Migdal Model | We have determined the phase diagram of the simplest version of a lattice
model introduced in the recent work of Kazakov and Migdal. If $m_0$ and
$\lambda$ are the bare mass and self coupling of the scalar field in the model
respectively, we find a line of first order phase transitions in the ($m_0,
\lambda$) plane end... | 1992-07-31 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | Andreas Gocksch and Yue Shen |
hep-lat/9207032 | Topological susceptibility and string tension in the lattice CP(N)
models | In the lattice CP(N) models we studied the problems related to the measure of
the topological susceptibility and the string tension . We perfomed numerical
simulations at N=4 and N=10. In order to test the universality, we adopted two
different lattice formulations. Scaling and universality tests led to the
conclusion ... | 1992-07-31 | 2016-08-31 | [
"hep-lat"
] | M. Campostrini, P. Rossi, and E. Vicari |
hep-lat/9207031 | Finite Size Scaling of Probability Distributions in SU(2) Lattice Gauge
Theory and Phi^4 Field Theory | For a system near a second order phase transition, the probability
distribution for the order parameter can be given a finite size scaling form.
This fact is used to compare the finite temperature phase transition for the
Wilson lines in d=3+1 SU(2) lattice gauge theory with the phase transition in
d=3 phi^4 field theo... | 1992-07-29 | 2007-05-23 | [
"hep-lat"
] | Stuart Staniford-Chen |
hep-lat/9207030 | Global Demons in Field Theory : Critical Slowing Down in the Xy Model | We investigate the use of global demons, a `canonical dynamics', as an
approach to simulating lattice regularized field theories. This
deterministically chaotic dynamics is non-local and non-Hamiltonian, and
preserves the canonical measure rather than $\delta(H-E)$. We apply this
inexact dynamics to the 2D XY model, co... | 1992-07-27 | 2009-10-22 | [
"hep-lat"
] | Dimitri Kusnezov (Yale) and John Sloan (Ohio State) |
hep-lat/9207029 | Topology of the Yang-Mills Configuration space | It will be described how to uniquely fix the gauge using Coulomb gauge
fixing, avoiding the problem of Gribov copies. The fundamental modular domain,
which represents a one-to-one representation of the set of gauge invariant
degrees of freedom, is a bounded convex subset of the trans- verse gauge
fields. Boundary ident... | 1992-07-27 | 2007-05-23 | [
"hep-lat",
"hep-th"
] | Pierre van Baal |
hep-lat/9207028 | Monte Carlo Calculation of Phase Shift in Four Dimensional O(4) $\phi^4$
Theory | The phase shift of the O(4) symmetric $\phi^4$ theory in the symmetric phase
is calculated numerically using the relation between phase shift and energy
levels of two-particle states recently derived by L\"{u}scher. The results
agree with the prediction of perturbation theory. A practical difficulty of the
method for a... | 1992-07-26 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | Jun Nishimura |
hep-lat/9207027 | A new approach to noncompact lattice qed with light fermions | We discuss detailed simulations of the non compact abelian model coupled to
light fermions, using a method previously developed that includes the effects
of the fermionic interactions in an effective action. The approximations
involved are related to an expansion in the flavour number. We address the
problem of the (no... | 1992-07-24 | 2015-06-25 | [
"hep-lat"
] | V. Azcoiti, G. Di Carlo and A.F. Grillo |
hep-lat/9207026 | A Multicanonical Algorithm and the Surface Free Energy in SU(3) Pure
Gauge Theory | We present a multicanonical algorithm for the SU(3) pure gauge theory at the
deconfinement phase transition. We measure the tunneling times for lattices of
size L^3x2 for L=8,10, and 12. In contrast to the canonical algorithm the
tunneling time increases only moderately with L. Finally, we determine the
interfacial fre... | 1992-07-23 | 2009-10-22 | [
"hep-lat",
"astro-ph",
"cond-mat"
] | B.Grossmann, M.L.Laursen, T.Trappenberg, U.-J.Wiese |
hep-lat/9207025 | QCD thermodynamics with two flavors of Wilson quarks at N_t=6 | We report on a study of hadron thermodynamics with two flavors of Wilson
quarks on 12^3x6 lattices. We have studied the crossover between the high and
low temperature regimes for three values of the hopping parameter, kappa=0.16,
0.17, and 0.18. At each of these values of kappa we have carried out spectrum
calculations... | 1992-07-22 | 2009-10-22 | [
"hep-lat"
] | Claude Bernard, Michael C. Ogilvie, Thomas A. DeGrand, Carleton DeTar,
Steven Gottlieb, Alex Krasnitz, R. L. Sugar, and D. Toussaint |
hep-lat/9207024 | Large $N$ analysis of the Higgs mass triviality bound | We calculate the triviality bound on the Higgs mass in scalar field theory
models whose global symmetry group $SU(2)_L \times SU(2)_{\rm custodial}
\approx O(4)$ has been replaced by $O(N)$ and $N$ has been taken to infinity.
Limits on observable cutoff effects at four percent in several regularized
models with tunable... | 1992-07-22 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Urs M. Heller, Herbert Neuberger and Pavlos Vranas |
hep-lat/9207022 | Crossover Between Weakly and Strongly Self-avoiding Random Surfaces | We investigate the crossover between weak and strong self-avoidance in a
simulation of random surfaces with extrinsic curvature. We consider both
dynamically triangulated and rigid surfaces with the two possible
discretizations of the extrinsic curvature term. | 1992-07-21 | 2009-10-22 | [
"hep-lat"
] | C.F. Baillie and D.A. Johnston |
hep-lat/9207023 | Multicanonical Spin Glass Simulations | We report a Monte Carlo simulation of the $2D$ Edwards-Anderson spin glass
model within the recently introduced multicanonical ensemble. Replica on
lattices of size $L^2$ up to $L=48$ are investigated. Once a true groundstate
is found, we are able to give a lower bound on the number of statistically
independent grounds... | 1992-07-21 | 2015-06-25 | [
"hep-lat",
"cond-mat"
] | B.A. Berg and T. Celik |
hep-lat/9207021 | Numerical simulation of heavy fermions in an SU(2)_L x SU(2)_R symmetric
Yukawa model | An exploratory numerical study of the influence of heavy fermion doublets on
the mass of the Higgs boson is performed in the decoupling limit of a chiral
$\rm SU(2)_L \otimes SU(2)_R$ symmetric Yukawa model with mirror fermions. The
behaviour of fermion and boson masses is investigated at infinite bare quartic
coupling... | 1992-07-21 | 2010-12-23 | [
"hep-lat"
] | C. Frick, L. Lin, I. Montvay, G. Munster, M. Plagge, T. Trappenberg,
H. Wittig |
hep-lat/9207020 | Topography of the hot sphaleron Transitions | By numerical simulations in {\it real time} we provide evidence in favour of
sphaleron like transitions in the hot, symmetric phase of the electroweak
theory. Earlier performed observations of a change in the Chern-Simons number
are supplemented with a measurement of the lowest eigenvalues of the
three-dimensional stag... | 1992-07-20 | 2009-10-22 | [
"hep-lat"
] | J. Ambjorn and K. Farakos |
hep-lat/9207019 | High Precision Verification of the Kosterlitz Thouless Scenario | We verify the Kosterlitz Thouless scenario for three different SOS
(solid-on-solid) models, including the dual transforms of XY-models with
Villain and with cosine action. The method is based on a matching of the
renormalization group (RG) flow of the candidate models with the flow of a bona
fide KT model, the exactly ... | 1992-07-19 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | M. Hasenbusch, M. Marcu and K. Pinn |
hep-lat/9207018 | Fermion Interactions in the Wilson Yukawa Approach for Lattice Chiral
Gauge Theories | We consider fermion-gauge couplings in the Wilson-Yukawa approach for lattice
chiral gauge theories. At the leading order of a fermionic hopping parameter
expansion we find that the fermion-gauge coupling has a chiral and tree-like
structure. We argue that this fermion-gauge coupling remains non-zero in the
continuum l... | 1992-07-18 | 2017-02-01 | [
"hep-lat"
] | Sinya Aoki |
hep-lat/9207017 | The equivalence of the SU(N) Yang Mills Theory with a Purely Fermionic
Model | We investigate the detailed conditions under which a purely fermionic model
with current-current interaction goes over to a renormalizable, asymptotically
free SU$(N)$ gauge theory. | 1992-07-17 | 2009-10-22 | [
"hep-lat"
] | Anna Hasenfratz, Peter Hasenfratz |
hep-lat/9207016 | Improving Multigrid and Conventional Relaxation Algorithms for
Propagators | Practical modifications of deterministic multigrid and conventional
relaxation algorithms are discussed. New parameters need not be tuned but are
determined by the algorithms themselves. One modification can be thought of as
``updating on a last layer consisting of a single site''. It eliminates
critical slowing down i... | 1992-07-17 | 2009-10-22 | [
"hep-lat"
] | Thomas Kalkreuter |
hep-lat/9207015 | 1/N Expansion and Particle Spectrum in Induced QCD | We study the 1/N expansion in the recently proposed model of the lattice
gauge theory induced by heavy scalar field in adjoint representation. In the
first approximation the fluctuations of the density of eigenvalues of the
scalar field are Gaussian, so that the scalar glueball spectrum is defined from
the correspondin... | 1992-07-16 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | A.A. Migdal |
hep-lat/9207014 | Lattice Charge Overlap: Towards the Elastic Limit | A numerical investigation of time-separated charge overlap measurements is
carried out for the pion in the context of lattice QCD using smeared Wilson
fermions. The evolution of the charge distribution function is examined and the
expected asymptotic time behavior $\sim e^{-(E_{q}-m_{\pi})t}$, where $t$
represents the ... | 1992-07-16 | 2009-10-22 | [
"hep-lat"
] | Walter Wilcox |
hep-lat/9207012 | A Proposal for Simulating Chiral Fermions | We describe a method for evaluating chiral gauge theories that is not plagued
by the doubling problem. To demonstrate the efficiency of the approach, we
apply our ideas to the chiral Schwinger model. | 1992-07-15 | 2009-10-22 | [
"hep-lat"
] | M. Goeckeler and G. Schierholz |
hep-lat/9207013 | The Topological Susceptibility of the Lattice CP(n-1) Model on the Torus
and the Sphere | The topological vacuum structure of the two-dimensional $~CP^{n-1}~$ model
for $~n = 3,5,7~$ is studied on the lattice. In particular we investigate the
small-volume limit on the torus as well as on the sphere and compare with
continuum results. For $~n \ge 5~$ , where lattice artifacts should be
suppressed, the topolo... | 1992-07-15 | 2009-10-22 | [
"hep-lat"
] | N. Schultka and M. M\"uller-Preussker |
hep-lat/9207009 | The Schr\"odinger Functional - a Renormalizable Probe for Non-Abelian
Gauge Theories | Following Symanzik we argue that the Schr\"odinger functional in lattice
gauge theories without matter fields has a well-defined continuum limit. Due to
gauge invariance no extra counter terms are required. The Schr\"odinger
functional is, moreover, accessible to numerical simulations. It may hence be
used to study the... | 1992-07-09 | 2016-08-14 | [
"hep-lat"
] | Martin L\"uscher and Rajamani Narayanan (DESY), Peter Weisz (MPI,
Munich), Ulli Wolff (CERN) |
hep-lat/9207011 | On Heteropolymer Shape Dynamics | We investigate the time evolution of the heteropolymer model introduced by
Iori, Marinari and Parisi to describe some of the features of protein folding
mechanisms. We study how the (folded) shape of the chain evolves in time. We
find that for short times the mean square distance (squared) between chain
configurations ... | 1992-07-09 | 2009-10-22 | [
"hep-lat",
"cond-mat",
"q-bio.QM"
] | Pawel Pliszka and Enzo Marinari |
hep-lat/9207010 | Computation of the Running Coupling in the SU(2) Yang-Mills Theory | A finite-size scaling technique is applied to the SU(2) gauge theory (without
matter fields) to compute a non-perturbatively defined running coupling
alpha(q) for a range of momenta q given in units of the string tension K. We
find that already at rather low q, the evolution of alpha(q) is well described
by the 2-loop ... | 1992-07-09 | 2016-08-14 | [
"hep-lat"
] | Martin L\"uscher (DESY), Peter Weisz (MPI, Munich), Rainer Sommer and
Ulli Wolff (CERN) |
hep-lat/9207008 | The Theory of Dynamical Random Surfaces with Extrinsic Curvature | We analyze numerically the critical properties of a two-dimensional
discretized random surface with extrinsic curvature embedded in a
three-dimensional space. The use of the toroidal topology enables us to enforce
the non-zero external extension without the necessity of defining a boundary
and allows us to measure dire... | 1992-07-08 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | J. Ambjorn, A, Irback, J. Jurkiewicz and B. Petersson |
hep-lat/9207007 | Recent Results of Multimagnetical Simulations of the Ising Model | To investigate order-order interfaces, we perform multimagnetical Monte Carlo
simulations of the $2D$ and $3D$ Ising model. Stringent tests of the numerical
methods are performed by reproducing with high precision exact $2D$ results. In
the physically more interesting $3D$ case we estimate the amplitude $F^s_0$ of
the ... | 1992-07-08 | 2015-06-25 | [
"hep-lat"
] | U. Hansmann, B.A. Berg and T. Neuhaus |
hep-lat/9207006 | The Phase Diagram of a U(1) Higgs-Yukawa Model at Finite $\lambda$ | In this paper we investigate how the phase diagram of a U(1) symmetric
Higgs-Yukawa system depends on the scalar self coupling $\lambda$. The phase
diagram of similar models with continuous symmetry were extensively studied in
the infinite scalar self coupling $\lambda=\infty$ limit. Recent analytical and
numerical cal... | 1992-07-06 | 2009-10-22 | [
"hep-lat"
] | A. Hasenfratz, K. Jansen and Y. Shen |
hep-lat/9207004 | Fermions in Models with Wilson--Yukawa Couplings | Our work on models with Wilson--Yukawa couplings is reviewed. Conclusions
include the failure of such models to produce continuum chiral gauge theories. | 1992-07-04 | 2009-10-22 | [
"hep-lat"
] | M.F.L. Golterman and D.N. Petcher |
hep-lat/9207005 | On the Eichten--Preskill Proposal for Lattice Chiral Gauge Theories | We have studied the Eichten--Preskill proposal for constructing lattice
chiral gauge theories using both strong and weak coupling methods. The results
indicate that this proposal is unlikely to work due to a dynamical behavior
similar to that of the Smit--Swift proposal, which also does not give rise to
chiral fermions... | 1992-07-04 | 2009-10-22 | [
"hep-lat"
] | M.F.L. Golterman, D.N. Petcher and E. Rivas |
hep-lat/9207002 | Gauge Dependence of Effective Quark Mass and Matrix Elements in
Gaugefixed Large $N$ Strong Coupling Lattice QCD | In conjunction with recent numerical \hbox{$\lambda~\partial_0 A_0 +
\nabla\cdot\vec{A} =0$} ``$\lambda$-gauge'' results reported in a companion
paper, we construct an $N\to\infty$ Wilson loop picture of
$\lambda$-gaugefixing in which (I)the $\lambda$-gauge expectation value of a
link chain $C$ is the weighted sum over... | 1992-07-03 | 2011-07-19 | [
"hep-lat"
] | Ken Yee |
hep-lat/9207003 | Kinematics of Multigrid Monte Carlo | We study the kinematics of multigrid Monte Carlo algorithms by means of
acceptance rates for nonlocal Metropolis update proposals. An approximation
formula for acceptance rates is derived. We present a comparison of different
coarse-to-fine interpolation schemes in free field theory, where the formula is
exact. The pre... | 1992-07-03 | 2009-10-22 | [
"hep-lat"
] | M.Grabenstein and K.Pinn |
hep-lat/9207001 | The Effective String of 3D Z_2 Gauge Theory as a c=1 compactified CFT | We report on a high precision Montecarlo test of the three dimensional Ising
gauge model at finite temperature. The string tension $\sigma$ is extracted
from the expectation values of correlations of Polyakov lines. Agreement with
the string tension extracted from Wilson loops is found only if the quantum
fluctuations ... | 1992-07-01 | 2015-06-25 | [
"hep-lat",
"hep-th"
] | M. Caselle, R. Fiore, F. Gliozzi and S. Vinti |
hep-lat/9206027 | Numerical Analysis of the Quark Fraction of the Proton Spin | We report on a lattice QCD estimate of the quark spin fraction of the proton
spin. The estimate is arrived at by means of a lattice QCD simulation of the
polarized proton matrix element of the Adler-Bell-Jackiw anomaly. The
preliminary result of the simulation is that this fraction is rather small.
This is in accord wi... | 1992-06-30 | 2007-05-23 | [
"hep-lat",
"hep-ph"
] | Jeffrey E. Mandula |
hep-lat/9206026 | The Universlity Class of Monopole Condensation in Non-Compact, Quenched
Lattice QED | Finite size scaling studies of monopole condensation in noncompact quenched
lattice $QED$ indicate an authentic second order phase transition lying in the
universality class of four dimensional percolation. Since the upper critical
dimension of percolation is six, the measured critical indices are far from
mean-field v... | 1992-06-30 | 2009-10-22 | [
"hep-lat"
] | Aleksandar Kocic (CERN), John Kogut (Illinois), Simon Hands (CERN) |
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