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 |
|---|---|---|---|---|---|---|
hep-lat/9405002 | How good is the quenched approximation of QCD? | The quenched approximation for QCD is, at present and in the foreseeable
future, unavoidable in lattice calculations with realistic choices of the
lattice spacing, volume and quark masses. In this talk, I review an analytic
study of the effects of quenching based on chiral perturbation theory. Quenched
chiral perturbat... | 1994-05-03 | 2015-06-25 | [
"hep-lat",
"hep-ph"
] | Maarten F.L. Golterman |
hep-lat/9405003 | Hadron Masses from the Valence Approximation to Lattice QCD | We evaluate pseudoscalar, vector, spin 1/2 and spin 3/2 baryon masses
predicted by lattice QCD with Wilson quarks in the valence (quenched)
approximation for a range of different values of lattice spacing, lattice
volume and quark mass. Extrapolating these results to physical quark mass, then
to zero lattice spacing an... | 1994-05-03 | 2009-10-22 | [
"hep-lat"
] | F. Butler, H. Chen, J. Sexton, A. Vaccarino and D. Weingarten |
hep-lat/9405001 | Fast Krylov Space Methods for Calculation of Quark Propogator | Different recently developed Krylov space methods for solving linear systems
are studied and compared for the solution of the Dirac equation on the lattice.
Stabilized Biconjugate Gradient (BiCGstab2) is shown to be a robust and
efficient solver for the calculation of the Wilson quark propagator in lattice
QCD. | 1994-05-02 | 2007-05-23 | [
"hep-lat"
] | Artan Bori\c{c}i and Philippe de Forcrand |
hep-lat/9404017 | Dual Meissner Effect and String Tension in SU(2) Lattice Gauge Theory | We study the distribution of the color fields due to a static quark-antiquark
pair in SU(2) lattice gauge theory. We find that the London penetration length
measured after Abelian projection in the Abelian Covariant gauge (Maximal
Abelian gauge) agrees with the one obtained without gauge fixing. Moreover the
penetratio... | 1994-04-29 | 2009-10-22 | [
"hep-lat"
] | P. Cea and L. Cosmai |
hep-lat/9404016 | High Precision Renormalization Group Study of the Roughening Transition | We confirm the Kosterlitz-Thouless scenario of the roughening transition for
three different Solid-On-Solid models: the Discrete Gaussian model, the
Absolute-Value-Solid-On-Solid model and the dual transform of the XY model with
standard (cosine) action. The method is based on a matching of the
renormalization group fl... | 1994-04-29 | 2009-10-22 | [
"hep-lat"
] | M. Hasenbusch, M. Marcu, and K. Pinn |
hep-lat/9404015 | Monopoles and string tension in SU(2) QCD | Monopole and photon contributions to abelian Wilson loops are calculated
using Monte-Carlo simulations of SU(2) QCD in the maximally abelian gauge. The
string tension is well reproduced only by monopole contributions, whereas
photons alone are responsible for the Coulomb coefficient of the abelian static
potential. | 1994-04-28 | 2009-10-22 | [
"hep-lat",
"hep-ph",
"nucl-th"
] | Hiroshi Shiba and Tsuneo Suzuki |
hep-lat/9404014 | String Tension from Monopoles in SU(2) Lattice Gauge Theory | The axis for Figure 2 was wrong. It has been fixed and the postscript file
replaced (The file was called comp.ps). | 1994-04-26 | 2010-11-01 | [
"hep-lat"
] | John D. Stack, Steven D. Neiman, and Roy J. Wensley |
hep-lat/9404013 | Accelerating Wilson Fermion Matrix Inversions by Means of the Stabilized
Biconjugate Gradient Algorithm | The stabilized biconjugate gradient algorithm BiCGStab recently presented by
van der Vorst is applied to the inversion of the lattice fermion operator in
the Wilson formulation of lattice Quantum Chromodynamics. Its computational
efficiency is tested in a comparative study against the conjugate gradient and
minimal res... | 1994-04-25 | 2015-06-25 | [
"hep-lat"
] | A. Frommer, V. Hannemann, Th. Lippert, B. Noeckel and K. Schilling |
hep-lat/9404012 | A New Determination of M_b Using Lattice QCD | Recent results from lattice QCD simulations provide a realistic picture,
based upon first principles, of~$\Upsilon$ physics. We combine these results
with the experimentally measured mass of the $\Upsilon$~meson to obtain an
accurate and reliable value for the $b$-quark's pole mass. We use two different
methods, each o... | 1994-04-21 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | C.T.H. Davies, K. Hornbostel, A. Langnau, G.P. Lepage, A. Lidsey, C.J.
Morningstar, J. Shigemitsu, and J. Sloan |
hep-lat/9404010 | Lattice Computation of the Effective Potential in O(2)-Invariant
$\lambda\Phi^4$ Theory | We present a lattice computation of the effective potential for
O(2)-invariant $(\lambda\Phi^4)_4$ theory in the region of bare parameters
corresponding to a classically scale-invariant theory. As expected from
``triviality'' and as in the one-component theory, we find very good agreement
with the one-loop prediction, ... | 1994-04-20 | 2007-05-23 | [
"hep-lat",
"hep-ph",
"hep-th"
] | A.Agodi, G.Andronico and M.Consoli |
hep-lat/9404011 | Critical region of the random bond Ising model | We describe results of the cluster algorithm Special Purpose Processor
simulations of the 2D Ising model with impurity bonds. Use of large lattices,
with the number of spins up to $10^6$, permitted to define critical region of
temperatures, where both finite size corrections and corrections to scaling are
small. High a... | 1994-04-20 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | Andrei L. Talapov and Lev N. Shchur |
hep-lat/9404009 | Lattice and Continuum Theories | We investigate path integral formalism for continuum theory. It is shown that
the path integral for the soft modes can be represented in the form of a
lattice theory. Kinetic term of this lattice theory has a standard form and
potential term has additional nonlocal terms which contributions should tend to
zero in the l... | 1994-04-19 | 2007-05-23 | [
"hep-lat"
] | V.M.Belyaev |
hep-lat/9404007 | Distances on a Lattice from Non-commutative Geometry | Using the tools of noncommutative geometry we calculate the distances between
the points of a lattice on which the usual discretized Dirac operator has been
defined. We find that these distances do not have the expected behaviour,
revealing that from the metric point of view the lattice does not look at all
as a set of... | 1994-04-13 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | G.Bimonte, F.Lizzi and G.Sparano |
hep-lat/9404008 | Screening and Deconfinement of Sources in Finite Temperature SU(2)
Lattice Gauge Theory | Deconfinement and screening of higher-representation sources in
finite-temperature $SU(2)$ lattice gauge theory is investigated by both
analytical and numerical means. The effective Polyakov-line action at strong
coupling is simulated by an efficient cluster-updating Monte Carlo algorithm
for the case of $d\!=\!4$ dime... | 1994-04-13 | 2009-10-22 | [
"hep-lat"
] | P.H. Damgaard and M. Hasenbusch |
hep-lat/9404006 | QCD thermodynamics with Wilson quarks at large kappa | We have extended our study of the high temperature transition with two
flavors of Wilson quarks on 12^3 x 6 lattices to kappa=0.19. We have also
performed spectrum calculations on 12^3 x 24 lattices at kappa=0.19 to find the
physical lattice spacing and quark mass. At this value of kappa the transition
is remarkable in... | 1994-04-12 | 2008-11-26 | [
"hep-lat"
] | Tom Blum, Thomas A. DeGrand, Carleton DeTar, Steven Gottlieb, A.
Hasenfratz, Leo Karkkainen, D. Toussaint, and R.L. Sugar |
hep-lat/9404004 | Four-Quark Binding Energies from SU(2) Lattice Monte Carlo | Energies of four-quark systems have been extracted in a static quenched SU(2)
lattice Monte Carlo calculation for six different geometries, both planar and
non-planar, with $\beta=2.4$ and lattice size $16^3\times 32$. In all cases, it
is found that the binding energy is greatly enhanced when the four quarks can
be par... | 1994-04-11 | 2008-11-26 | [
"hep-lat"
] | A.M.Green, C.Michael and M.E.Sainio |
hep-lat/9404005 | The Propagators of Gauge Bosons on a lattice | We analyse the problem of the generation of mass in the gauge boson sector on
the (Planck) lattice. We obtain a dynamical scenario quite similar to the
popular Higgs-mechanism, with the important difference that no Higgs-type
excitation is present in our theory. By fixing the mass of the $Z^\circ$-boson
and the renorma... | 1994-04-11 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | B. G. Preparata and She-Sheng XUE |
hep-lat/9404003 | Reentrant Behavior in the Domany-Kinzel Cellular Automaton | We present numerical and analytical results for a special kind of
one-dimensional probabilistic cellular automaton, the so called Domany-Kinzel
automaton. It is shown that the phase boundary separating the active and the
recently found chaotic phase exhibits reentrant behavior. Furthermore exact
results for the $p_2$=0... | 1994-04-08 | 2009-10-22 | [
"hep-lat"
] | H. Rieger, A. Schadschneider and M. Schreckenberg |
hep-lat/9404002 | Critical Point Correlation Function for the 2D Random Bond Ising Model | High accuracy Monte Carlo simulation results for 1024*1024 Ising system with
ferromagnetic impurity bonds are presented. Spin-spin correlation function at a
critical point is found to be numerically very close to that of a pure system.
This is not trivial since a critical temperature for the system with impurities
is a... | 1994-04-05 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | Andrei L. Talapov and Lev N. Shchur |
hep-lat/9404001 | Instanton size distribution in O(3) | We present calculations of the size distribution of instantons in the 2d O(3)
non-linear sigma-model, and briefly discuss the effects cooling has upon the
configurations and the topological objects. (This preprint is also available
via anonymous ftp to suna.amtp.liv.ac.uk in /pub/pss/ as instdist.uue.) | 1994-04-05 | 2008-11-26 | [
"hep-lat"
] | C. Michael and P.S. Spencer |
hep-lat/9403028 | Computation of the Heavy-Light Decay Constant using Non-relativistic
Lattice QCD | We report results on a lattice calculation of the heavy-light meson decay
constant employing the non-relativistic QCD approach for heavy quark and Wilson
action for light quark. Simulations are carried out at $\beta=6.0$ on a
$16^3\times 48$ lattice. Signal to noise ratio for the ground state is
significantly improved ... | 1994-03-31 | 2009-10-22 | [
"hep-lat"
] | Shoji Hashimoto |
hep-lat/9403027 | The Spatial String Tension in High Temperature Lattice Gauge Theories | We develop some techniques which allow an analytic evaluation of space-like
observables in high temperature lattice gauge theories. We show that such
variables are described extremely well by dimensional reduction. In particular,
by using results obtained in the context of ``Induced QCD'', we evaluate the
contributions... | 1994-03-31 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | M. Caselle and A. D'Adda |
hep-lat/9403026 | Sphalerons and Other Saddles from Cooling | We describe a new cooling algorithm for SU(2) lattice gauge theory. It has
any critical point of the energy or action functional as a fixed point. In
particular, any number of unstable modes may occur. We also provide insight in
the convergence of the cooling algorithms. A number of solutions will be
discussed, in part... | 1994-03-29 | 2015-06-25 | [
"hep-lat",
"hep-th"
] | Margarita Garcia Perez and Pierre van Baal |
hep-lat/9403025 | Phase structure and monopoles in U(1) gauge theory | We investigate the phase structure of pure compact U(1) lattice gauge theory
in 4 dimensions with the Wilson action supplemented by a monopole term. To
overcome the suppression of transitions between the phases in the simulations
we make the monopole coupling a dynamical variable. We determine the phase
diagram and fin... | 1994-03-29 | 2009-10-22 | [
"hep-lat"
] | Werner Kerler, Claudio Rebbi, and Andreas Weber |
hep-lat/9403024 | With missing title of the paper. Overrelaxation Algorithm for coupled
Gauge-Higgs systems | In this letter we extent the overrelaxation algorithm, known to be very
efficient in gauge theories, to coupled gauge-Higgs systems with a particular
emphasis on the update of the radial mode of the Higgs field. Our numerical
tests of the algorithm show that the autocorrelation times can be reduced
substantially. | 1994-03-22 | 2009-10-22 | [
"hep-lat"
] | Zoltan Fodor and Karl Jansen |
hep-lat/9403022 | On the relation between the width of the flux tube and $T_c^{-1}$ in
lattice gauge theories | Within the framework of a quantum flux tube model for the interquark
potential it is possible to predict that in (2+1) dimensions the space-like
string tension must increase with the temperature in the deconfined phase and
that the thickness of the flux tube must coincide with the inverse of the
deconfinement temperatu... | 1994-03-18 | 2009-10-22 | [
"hep-lat"
] | M. Caselle, F. Gliozzi and S. Vinti |
hep-lat/9403023 | Scattering of Glueballs and Mesons in Compact $QED$ in $2+1$ Dimensions | We study glueball and meson scattering in compact $QED_{2+1}$ gauge theory in
a Hamiltonian formulation and on a momentum lattice. We compute ground state
energy and mass, and introduce a compact lattice momentum operator for the
computation of dispersion relations. Using a non-perturbative time-dependent
method we com... | 1994-03-18 | 2009-10-22 | [
"hep-lat"
] | A.M. Chaara, H. Kr\"oger, L. Marleau, K.J.M. Moriarty and J. Potvin |
hep-lat/9403021 | The Lattice Cutoff for $\lambda\phi^4_4$ and $\lambda\phi^6_3$ | We analyze the critical line of $\lambda\phi^4_4$ perturbatively in the bare
coupling $\lambda_0$, by setting the daisy-improved renormalized mass to zero.
By comparing to lattice data, we can then quantify the relation between the
continuum cutoff and the lattice spacing; for the 4-dimensional hypercubic
lattice we fi... | 1994-03-18 | 2008-02-03 | [
"hep-lat",
"hep-ph"
] | David E. Brahm |
hep-lat/9403020 | Negative-Energy Spinors and the Fock Space of Lattice Fermions at Finite
Chemical Potential | Recently it was suggested that the problem of species doubling with
Kogut-Susskind lattice fermions entails, at finite chemical potential, a
confusion of particles with antiparticles. What happens instead is that the
familiar correspondence of positive-energy spinors to particles, and of
negative-energy spinors to anti... | 1994-03-16 | 2010-11-01 | [
"hep-lat"
] | E.Mendel and L.Polley (Oldenburg U.) |
hep-lat/9403018 | Lattice QCD for Small Computers | These lectures discuss field theoretic techniques that might allow for
realistic simulations of lattice QCD on small computers. | 1994-03-16 | 2016-10-26 | [
"hep-lat"
] | G.P. Lepage |
hep-lat/9403019 | On the Absence of an Exponential Bound in Four Dimensional Simplicial
Gravity | We have studied a model which has been proposed as a regularisation for four
dimensional quantum gravity. The partition function is constructed by
performing a weighted sum over all triangulations of the four sphere. Using
numerical simulation we find that the number of such triangulations containing
$V$ simplices grow... | 1994-03-16 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | S. Catterall, J. Kogut and R. Renken |
hep-lat/9403017 | Simplicial Quantum Gravity on a Computer | We describe a method of Monte-Carlo simulations of simplicial quantum gravity
coupled to matter fields. We concentrate mainly on the problem of implementing
effectively the random, dynamical triangulation and building in a
detailed-balance condition into the elementary transformations of the
triangulation. We propose a... | 1994-03-15 | 2009-10-22 | [
"hep-lat"
] | S. Bilke, Z. Burda and J. Jurkiewicz |
hep-lat/9403016 | Field-strength correlators in $SU(2)$ gauge theory | We measure field-strength and their correlators in presence of a static $q
\bar q$ pair by numerical simulations. We give an interpretation of these data
in terms of quadratic and quartic cumulants. | 1994-03-15 | 2009-10-22 | [
"hep-lat"
] | L. Del Debbio, A. Di Giacomo and Yu. Simonov |
hep-lat/9403015 | Bosonization and the lattice: the $d=2$ Gross-Neveu model | We consider the lattice formulation of bosonized quantum field theories. As a
non trivial example, we study the two dimensional Gross-Neveu model. Analytical
investigations and direct numerical simulation strongly suggest that the
lattice model reproduces the continuum physics. Anticommuting fields are not
required and... | 1994-03-14 | 2009-09-25 | [
"hep-lat"
] | Matteo Beccaria |
hep-lat/9403012 | Towards a Dynamical Solution of the Strong CP Problem | It is argued that QCD might solve the strong CP problem on its own. To test
this idea, a lattice simulation suggests itself. In view of the difficulty of
such a calculation we have, as a first step, investigated the problem in the
$CP^3$ model. The $CP^3$ model is in many respects similar to QCD. In this talk
I shall p... | 1994-03-11 | 2015-06-25 | [
"hep-lat"
] | G. Schierholz |
hep-lat/9403013 | Detecting Dual Superconductivity in the Ground State of Gauge Theory | We explicitly construct a monopole creation operator: its vacuum expectation
value is an order parameter for dual superconductivity, in that, if different
from zero, it signals a spontaneous breaking of the $U(1)$ symmetry
corresponding to monopole charge conservation. This operator is tested by
numerical simulations i... | 1994-03-11 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | L. Del Debbio A. Di Giacomo and G. Paffuti |
hep-lat/9403014 | Nondecoupling of Heavy Mirror-Fermion | According to one-loop perturbation theory, fermions whose masses are totally
generated from Yukawa couplings do not decouple in the heavy mass limit. We
investigate this issue nonperturbatively in the strong coupling regime of the
chiral $U(1)$ mirror-fermion model in four dimensions. Our numerical results,
obtained on... | 1994-03-11 | 2009-10-22 | [
"hep-lat"
] | Lee Lin |
hep-lat/9403010 | Finite Size Effects in Fluid Interfaces | It is shown that finite size effects in the free energy of a rough interface
of the 3D Ising and three--state Potts models are well described by the
capillary wave model at {\em two--loop} order. The agreement between
theoretical predictions and Monte Carlo simulations strongly supports the idea
of the universality of ... | 1994-03-10 | 2009-10-22 | [
"hep-lat",
"cond-mat",
"hep-th"
] | M. Caselle, F. Gliozzi, P. Provero and S. Vinti |
hep-lat/9403011 | Chirally Extended Quantum Chromodynamics | We propose an extended Quantum Chromodynamics (XQCD) Lagrangian in which the
fermions are coupled to elementary scalar %$\sigma$ and $\pi$ fields through a
Yukawa coupling which preserves chiral invariance. Our principle motivation is
to find a new lattice formulation for QCD which avoids the source of critical
slowing... | 1994-03-10 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Richard C. Brower, Yue Shen and Chung-I Tan |
hep-lat/9403008 | Stochastic Lattice Gas Model for a Predator-Prey System | We propose a stochastic lattice gas model to describe the dynamics of two
animal species population, one being a predator and the other a prey. This
model comprehends the mechanisms of the Lotka-Volterra model. Our analysis was
performed by using a dynamical mean-field approximation and computer
simulations. Our result... | 1994-03-09 | 2009-10-22 | [
"hep-lat"
] | Javier Satulovsky and Tania Tome |
hep-lat/9403009 | Correlation Function in Ising Models | We simulated the fourier transform of the correlation function of the Ising
model in two and three dimensions using a single cluster algorithm with
improved estimators. The simulations are in agreement with series expansion and
the available exact results in $d=2$, which shows, that the cluster algorithm
can succesfull... | 1994-03-09 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | C. Ruge, P. Zhu and F. Wagner |
hep-lat/9403007 | External magnetic fields in gauge theories | A general discussion is presented of the response of a gauge-field system to
external magnetic fields, in the light of a theorem due to S. Elitzur. As a
result a natural understanding emerges of some recent puzzling results from
lattice MC simulations, as well as of the phenomenon of ``perfect
diamagnetism'' of non-abe... | 1994-03-08 | 2007-05-23 | [
"hep-lat",
"hep-th"
] | L. Gamberale, G. Preparata and She-Sheng XUE |
hep-lat/9403006 | Self-avoiding random surfaces with fluctuating topology | A gas of self-avoiding surfaces with an arbitrary polynomial coupling to the
gaussian curvature and an extrinsic curvature term can be realized in a
three-dimensional Ising bcc lattice with only three local couplings. Similar
three parameter realizations are valid also in other lattices. The relation
between the crumpl... | 1994-03-08 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | M. Caselle, F. Gliozzi and S. Vinti |
hep-lat/9403005 | On the equivalence between 2D Yukawa and Gross-Neveu models | We study numerically on the lattice the 2D Yukawa model with the U(1) chiral
symmetry and $N_F$ = 16 at infinite scalar field self-coupling. The scaling
behaviour of the fermion mass, as the Yukawa coupling approaches zero, is
analysed using the mean field method. It is found to agree with that of the
Gross-Neveu model... | 1994-03-04 | 2009-10-22 | [
"hep-lat"
] | E. Focht, W. Franzki, J. Jersak and M.A. Stephanov |
hep-lat/9403004 | The Nature of the Hadronic String | We study a closed hadronic string using pure glue lattice simulation. We
measure the energy of the flux state encircling the periodic boundary condition
(the torelon). From these data we deduce the string fluctuation component and
compare with models for the hadronic string. [The TEX source file is also
available by an... | 1994-03-04 | 2008-11-26 | [
"hep-lat"
] | UKQCD Collaboration, C. Michael and P. W. Stephenson |
hep-lat/9403003 | Phase structure of the Higgs-Yukawa systems with chirally invariant
lattice fermion actions | We develop analytical technique for examining phase structure of $Z_2$,
$U(1)$, and $SU(2)$ lattice Higgs-Yukawa systems with radially frozen Higgs
fields and chirally invariant lattice fermion actions. The method is based on
variational mean field approximation. We analyse phase diagrams of such systems
with different... | 1994-03-04 | 2009-10-22 | [
"hep-lat"
] | S. Tominaga and S. V. Zenkin |
hep-lat/9403002 | Numerical simulation of the Kardar-Parisi-Zhang equation | We simulate the Kardar-Parisi-Zhang equation in 2+1 dimensions. The Hopf-Cole
transformation is used in order to obtain a stable numerical scheme. The two
relevant critical exponents are precisely measured. (2 PostScript figures
available from the authors) | 1994-03-03 | 2009-10-22 | [
"hep-lat"
] | Matteo Beccaria and Giuseppe Curci |
hep-lat/9403001 | Finite Temperature Phase Transition in SU(2) Lattice Gauge Theory with
Extended Action | We study the three dimensional fundamental-adjoint $SU(2)$ lattice gauge
theory at finite temperature by Monte Carlo simulations. We find that the
finite temperature deconfinement phase transition line joins the first order
bulk phase transition line at its endpoint. Moreover, across the bulk
transition line, the Polya... | 1994-03-02 | 2009-10-22 | [
"hep-lat"
] | Rajiv V. Gavai, Michael Grady and Manu Mathur |
hep-lat/9402020 | Algebraic Computation of the Hierarchical Renormalization Group Fixed
Points and their $\epsilon$-Expansions | Nontrivial fixed points of the hierarchical renormalization group are
computed by numerically solving a system of quadratic equations for the
coupling constants. This approach avoids a fine tuning of relevant parameters.
We study the eigenvalues of the renormalization group transformation,
linearized around the non-tri... | 1994-02-28 | 2009-10-22 | [
"hep-lat"
] | K. Pinn, A. Pordt, and C. Wieczerkowski |
hep-lat/9402019 | The spin content of the proton in quenched QCD | We present preliminary results on the proton spin structure function at zero
momentum, in the quenched approximation. Our calculation makes use of a
nonperturbative means of determining the multiplicative renormalization of the
topological charge density. | 1994-02-28 | 2009-10-22 | [
"hep-lat"
] | B. Alles, M. Campostrini, L. Del Debbio, A. Di Giacomo, H.
Panagopoulos and E. Vicari |
hep-lat/9402017 | Field Theoretic Calculation of the Universal Amplitude Ratio of
Correlation Lengths in 3D-Ising Systems | In three-dimensional systems of the Ising universality class the ratio of
correlation length amplitudes for the high- and low-temperature phases is a
universal quantity. Its field theoretic determination apart from the
$\epsilon$-expansion represents a gap in the existing literature. In this
article we present a method... | 1994-02-25 | 2010-12-23 | [
"hep-lat",
"cond-mat"
] | Gernot Muenster and Jochen Heitger |
hep-lat/9402018 | Matrix Elements of the Singlet Axial Current in the Proton | We present a method to estimate the matrix element of the singlet axial
current within a polarized proton state using lattice QCD. The method relies on
using the Adler-Bell-Jackiw anomaly and gives the desired result in the chiral
limit. We show that this method fails in the quenched approximation. For heavy
quarks one... | 1994-02-25 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Rajan Gupta and Jeffrey Mandula |
hep-lat/9402016 | Looking for the Logarithms in Four-Dimensional Nambu-Jona-Lasinio Models | We study the problem of triviality in the four dimensional Nambu-Jona-Lasinio
model with discrete chiral symmetry using both large-N expansions and lattice
simulations. We find that logarithmic corrections to scaling appear in the
equation of state as predicted by the large-N expansion. The data from $16^4$
lattice sim... | 1994-02-21 | 2009-10-22 | [
"hep-lat",
"hep-ph",
"hep-th"
] | Seyong Kim, Aleksandar Kocic and John Kogut |
hep-lat/9402015 | A Critical Surface of Chiral-invariant System with Gauge Boson and
Fermions | In the chirally-invariant context of the $U_{em}(1)$ gauge interaction and
four-fermion interactions for ordinary and mirror fermions, the Schwinger-Dyson
equation for the fermion self-energy function is studied on a lattice. We find
that a sensible infrared limit can be defined on a critical surface, which is
consiste... | 1994-02-18 | 2009-09-25 | [
"hep-lat",
"hep-th"
] | She-Sheng XUE |
hep-lat/9402014 | Strong Coupling Expansion for Scattering Phases in Hamiltonian Lattice
Field Theories - I. the $(d+1)$-dimensional Ising model | A systematic method to obtain strong coupling expansions for scattering
quantities in Hamiltonian lattice field theories is presented. I develop the
conceptual ideas by means of the Hamiltonian field theory analogue of the Ising
model, in $d$ space and one time dimension. The main result is a convergent
series represen... | 1994-02-18 | 2009-10-22 | [
"hep-lat"
] | Bernd Dahmen |
hep-lat/9402013 | Surface states and chiral symmetry on the lattice | In a Hamiltonian formalism we study chiral symmetry for lattice Fermions
formulated in terms of Shockley surface states bound to a wall in an extra
spatial dimension. For hadronic physics this provides a natural scheme for
taking quark masses to zero without requiring a precise tuning of parameters.
We illustrate the c... | 1994-02-17 | 2009-10-22 | [
"hep-lat"
] | Michael Creutz and Ivan Horvath |
hep-lat/9402012 | Variational description of statistical field theories using Daubechies'
wavelets | We investigate the description of statistical field theories using
Daubechies' orthonormal compact wavelets on a lattice. A simple variational
approach is used to extend mean field theory and make predictions for the
fluctuation strengths of wavelet coefficients and thus for the correlation
function. The results are co... | 1994-02-16 | 2008-02-03 | [
"hep-lat",
"comp-gas",
"nlin.CG"
] | Christoph Best and Andreas Schaefer |
hep-lat/9402011 | Scattering phases on finite lattices in the broken phase of the
four-dimensional O(4)-\phi^4 theory | According to a proposal of Luescher it is possible to determine elastic
scattering phases in infinite volume from the energy spectrum of two-particle
states in a periodic box. We demonstrate the applicability of this method in
the broken phase of the four-dimensional O(4) non-linear sigma-model in a Monte
Carlo study o... | 1994-02-15 | 2009-10-22 | [
"hep-lat"
] | M. Goeckeler, H.A. Kastrup, J. Westphalen and F. Zimmermann |
hep-lat/9402010 | The Chirality of $b$ Quark Couplings | This review addresses the question of the chirality of $b$ quark weak
couplings from a theoretical and from a purely phenomenological point of view.
Due to their small magnitude $b$ decay couplings are subject to possible large
corrections from right-handed terms, on the one hand, and do not affect the
weak interaction... | 1994-02-14 | 2016-11-03 | [
"hep-lat",
"hep-ph"
] | Michael Gronau (Dept. of Physics, Technion, Haifa, Israel) |
hep-lat/9402009 | Fractal Dimension of Gauge-fixing Defects | The fractal dimension $D_f$ of sites resisting Landau or maximal Abelian(MA)
gauge fixing in lattice $SU(3)$ gluodynamics is defined and computed. In Landau
gauge such sites clump into $D_f\sim 1$ clusters in the confining phase. In the
finite temperature phase their dimensionality drops to $D_f < 1$, that is,
clusteri... | 1994-02-14 | 2009-10-22 | [
"hep-lat",
"cond-mat"
] | M.I. Polikarpov(ITEP, Moscow) and Ken Yee(LSU) |
hep-lat/9402008 | Single-Cluster Monte Carlo Study of the Ising Model on Two-Dimensional
Random Lattices | We use the single-cluster Monte Carlo update algorithm to simulate the Ising
model on two-dimensional Poissonian random lattices with up to 80,000 sites
which are linked together according to the Voronoi/Delaunay prescription. In
one set of simulations we use reweighting techniques and finite-size scaling
analysis to i... | 1994-02-13 | 2009-09-25 | [
"hep-lat",
"cond-mat"
] | W. Janke, M. Katoot, and R. Villanova |
hep-lat/9402006 | Spectrum of the Dirac operator in a QCD instanton liquid: two versus
three colors | Approximating the sum over all gauge field configurations in the QCD
partition function by a liquid of instantons, we calculate the spectrum of the
Dirac operator for two and three colors and for 0, 1 and 2 flavors. We find a
remarkable difference in the spectrum near zero virtuality between 2 and 3
colors, which can b... | 1994-02-11 | 2009-10-22 | [
"hep-lat"
] | Jacobus Verbaaarschot |
hep-lat/9402007 | Loop Action for Lattice U(1) Gauge Theory | It is showed that the very recently introduced Lagrangian $loop$ formulation
of the lattice Maxwell theory is equivalent to the Villain form in 2+1
dimensions. A transparent description of the classical $loop$ action is given
in pure geometrical terms for the $2+1$ and $3+1$ dimensional cases. | 1994-02-11 | 2009-10-22 | [
"hep-lat"
] | J. M. Aroca and H. Fort |
hep-lat/9402005 | Chiral Symmetry, Renormalization Group and Fixed Points for Lattice
Fermions | We discuss fixed point actions for various types of free lattice fermions.
The iterated block spin renormalization group transformation yields lines of
local but chiral symmetry breaking fixed points. For staggered fermions at
least the $U(1) \otimes U(1)$ symmetry can be preserved. This provides a basis
for approximat... | 1994-02-10 | 2007-05-23 | [
"hep-lat",
"hep-th"
] | W. Bietenholz |
hep-lat/9402004 | A generalized model for two dimensional quantum gravity and dynamics of
random surfaces for d>1 | The possible interpretations of a new continuum model for the two-dimensional
quantum gravity for $d>1$ ($d$=matter central charge), obtained by carefully
treating both diffeomorphism and Weyl symmetries, are discussed. In particular
we note that an effective field theory is achieved in low energy (large area)
expansio... | 1994-02-09 | 2015-06-25 | [
"hep-lat",
"hep-th"
] | M. Martellini, M. Spreafico and K. Yoshida |
hep-lat/9402003 | Super-Instantons in Gauge Theories and Troubles with Perturbation Theory | In gauge theories with continuous groups there exist classical solutions
whose energy vanishes in the thermodynamic limit (in any dimension). The
existence of these super-instantons is intimately related to the fact that even
at short distances perturbation theory can fail to produce unique results. This
problem arises... | 1994-02-08 | 2009-10-22 | [
"hep-lat"
] | A.Patrascioiou and E.Seiler |
hep-lat/9402002 | The Well-Defined Phase of Simplicial Quantum Gravity in Four Dimensions | We analyze simplicial quantum gravity in four dimensions using the Regge
approach. The existence of an entropy dominated phase with small negative
curvature is investigated in detail. It turns out that observables of the
system possess finite expectation values although the Einstein-Hilbert action
is unbounded. This we... | 1994-02-04 | 2009-10-22 | [
"hep-lat",
"gr-qc"
] | W. Beirl, E. Gerstenmayer, H. Markum, and J. Riedler |
hep-lat/9402001 | Phase Diagram of An SU(2)xSU(2) Scalar-Fermion Model with Massless
Decoupled Doublers | We present the phase structure of the chiral SU(2)xSU(2) scalar-fermion model
on the lattice using the Zaragoza proposal for chiral fermions. The numerical
result agrees with an analytic study based on the use of weak and strong Yukawa
coupling expansions combined with the mean field approach. The phase diagram
consits... | 1994-02-03 | 2010-03-19 | [
"hep-lat"
] | J.L. Alonso, F.Lesmes, E.Rivas and Ph. Boucaud |
hep-lat/9401039 | Quenched QCD at finite density | Simulations of quenched $QCD$ at relatively small but {\it nonzero} chemical
potential $\mu$ on $32 \times 16^3$ lattices indicate that the nucleon
screening mass decreases linearly as $\mu$ increases predicting a critical
chemical potential of one third the nucleon mass, $m_N/3$, by extrapolation.
The meson spectrum d... | 1994-02-01 | 2009-10-22 | [
"hep-lat"
] | J.B. Kogut, M-P Lombardo and D.K. Sinclair |
hep-lat/9401037 | Beauty Physics in Lattice Gauge Theory | We summarize the present status of lattice gauge theory computations of the
leptonic decay constants $f_D$ and $f_B$. The various sources of systematic
errors are explained in a manner easily understood by the non--expert. The
results obtained by the different groups are then systematically compared. As a
result, we de... | 1994-01-31 | 2009-10-22 | [
"hep-lat"
] | Rainer Sommer |
hep-lat/9401036 | The Spontaneous Breaking of Chiral Symmetry without Goldstone Bosons | Considering a self-interaction only of mirror fermions in the context of a
lattice-regularized fermion field theory, we show that the system undergoes
spontaneous breaking of chiral symmetry and mirror-fermion masses are
generated. However, it is explicitly shown that there are no Goldstone bosons
appearing together wi... | 1994-01-31 | 2009-09-25 | [
"hep-lat",
"hep-th"
] | She-Sheng Xue |
hep-lat/9401035 | Tadpole-Improved Perturbation Theory for Heavy-Light Lattice Operators | Lattice calculations of matrix elements involving heavy-light quark bilinears
are of interest in calculating a variety of properties of B and D mesons,
including decay constants and mixing parameters. A large source of uncertainty
in the determination of these properties has been uncertainty in the
normalization of the... | 1994-01-30 | 2013-11-13 | [
"hep-lat",
"hep-ph"
] | Oscar F. Hernandez and Brian R. Hill |
hep-lat/9401034 | The universal effective potential for three-dimensional massive scalar
field theory from the Monte Carlo study of the Ising model | We study the low-energy effective action $S_{eff}[\varphi]$ for the
one-component real scalar field theory in three Euclidean dimensions in the
symmetric phase, concentrating on its static part --- effective potential
$V_{eff}(\varphi)$. It characterizes the approach to the phase transition in
all systems that belong t... | 1994-01-29 | 2007-05-23 | [
"hep-lat",
"hep-ph",
"hep-th"
] | M.M.Tsypin |
hep-lat/9401033 | The Mass Ratio Between Neutrinos and Charged Leptons | In the framework of the recently proposed electroweak theory on a Planck
lattice, we are able to solve approximately the lattice Dyson equation for the
fermion self-energy functions and show that the large difference of charged
lepton and neutrino masses is caused by their very different gauge couplings.
The predicted ... | 1994-01-27 | 2022-03-02 | [
"hep-lat",
"hep-ph"
] | She-Sheng Xue and Giuliano Preparata |
hep-lat/9401032 | The Schwinger Model on the lattice in the Microcanonical Fermionic
Average approach | The Microcanonical Fermionic Average method has been used so far in the
context of lattice models with phase transitions at finite coupling. To test
its applicability to Asymptotically Free theories, we have implemented it in
QED$_2$, \it i.e.\rm the Schwinger Model. We exploit the possibility, intrinsic
to this method... | 1994-01-27 | 2009-10-22 | [
"hep-lat"
] | V.Azcoiti, G. Di Carlo, A. Galante, A.F. Grillo and V. Laliena |
hep-lat/9401031 | Recent Results in Scalar QED | In this talk we present some recent and new results on the phase structure
and the continuum limit of lattice formulation of pure gauge QED coupled to
Higgs fields. We show the presence of second order phase transition lines
allowing for a continuum limit. Nevertheless, finite size analysis shows that
this theory is lo... | 1994-01-26 | 2009-10-22 | [
"hep-lat"
] | M. Baig and J.B. Kogut |
hep-lat/9401030 | Computers for Lattice Field Theories | Parallel computers dedicated to lattice field theories are reviewed with
emphasis on the three recent projects, the Teraflops project in the US, the
CP-PACS project in Japan and the 0.5-Teraflops project in the US. Some new
commercial parallel computers are also discussed. Recent development of
semiconductor technologi... | 1994-01-26 | 2009-10-22 | [
"hep-lat"
] | Y. Iwasaki |
hep-lat/9401029 | Two dimensional SU(N)xSU(N) Chiral Models on the Lattice (II): the
Green's Function | Analytical and numerical methods are applied to principal chiral models on a
two-dimensional lattice and their predictions are tested and compared. New
techniques for the strong coupling expansion of SU(N) models are developed and
applied to the evaluation of the two-point correlation function. The
momentum-space latti... | 1994-01-25 | 2010-12-21 | [
"hep-lat"
] | Paolo Rossi and Ettore Vicari (University of Pisa) |
hep-lat/9401028 | Level Crossing for Hot Sphalerons | We study the spectrum of the Dirac Hamiltonian in the presence of high
temperature sphaleron-like fluctuations of the electroweak gauge and Higgs
fields, relevant for the conditions prevailing in the early universe. The
fluctuations are created by numerical lattice simulations. It is shown that a
change in Chern-Simons... | 1994-01-24 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | J. Ambjorn, K. Farakos, S. Hands, G. Koutsoumbas and G. Thorleifsson |
hep-lat/9401027 | Various Abelian Projections of $SU(2)$ Lattice Gluodynamics and
Aharonov-Bohm Effect in the Field Theory | We show that in general abelian projection of lattice gluodynamics it is not
only monopoles but also strings are present. Both these topological excitations
may be responsible for the confinement of color. We illustrate our ideas by
some explicit results in the Abelian Higgs model with the Villain action. | 1994-01-24 | 2010-05-27 | [
"hep-lat"
] | M.N. Chernodub, M.I. Polikarpov, M.A. Zubkov |
hep-lat/9401026 | Phase Structure of Four Dimensional Simplicial Quantum Gravity | We present the results of a high statistics Monte Carlo study of a model for
four dimensional euclidean quantum gravity based on summing over
triangulations. We show evidence for two phases; in one there is a logarithmic
scaling on the mean linear extent with volume, whilst the other exhibits power
law behaviour with e... | 1994-01-21 | 2011-04-20 | [
"hep-lat",
"hep-th"
] | S. Catterall, J. Kogut and R. Renken |
hep-lat/9401025 | The heavy quark potential in QCD with 2 flavors of dynamical quarks | We compute the heavy quark potential on configurations generated by the
HEMCGC collaboration with dynamical staggered fermions at $6/g^2 = 5.6$ and
with dynamical Wilson fermions at $6/g^2 = 5.3$. The computations are done on
$16^3 \times 32$ lattices, corresponding to physical sizes of about 1.6 and 2.3
fm, respective... | 1994-01-20 | 2010-11-01 | [
"hep-lat"
] | U.M. Heller, Khalil M. Bitar, R.G. Edwards and A.D. Kennedy |
hep-lat/9401024 | Analysis and Development of Stochastic Multigrid Methods in Lattice
Field Theory | We study the relation between the dynamical critical behavior and the
kinematics of stochastic multigrid algorithms. The scale dependence of
acceptance rates for nonlocal Metropolis updates is analyzed with the help of
an approximation formula. A quantitative study of the kinematics of multigrid
algorithms in several i... | 1994-01-20 | 2007-05-23 | [
"hep-lat"
] | Martin Grabenstein |
hep-lat/9401023 | Quenching 2D Quantum Gravity | We simulate the Ising model on a set of fixed random $\phi^3$ graphs, which
corresponds to a {\it quenched} coupling to 2D gravity rather than the annealed
coupling that is usually considered. We investigate the critical exponents in
such a quenched ensemble and compare them with measurements on dynamical
$\phi^3$ grap... | 1994-01-19 | 2009-10-22 | [
"hep-lat"
] | C.F. Baillie, K.A. Hawick and D.A. Johnston |
hep-lat/9401021 | QCD Spectroscopy | I review recent work on the calculation of hadron masses, decay constants and
wave functions. | 1994-01-19 | 2009-10-22 | [
"hep-lat"
] | D. Weingarten |
hep-lat/9401020 | The scalar and tensor glueballs in the valence approximation | We evaluate the infinite volume, continuum limit of $0^{++}$ and $2^{++}$
glueball masses in the valence approximation. We find $m_{0^{++}} = 1740 \pm 71
$~MeV and $m_{2^{++}} = 2359 \pm 128 $~MeV, consistent with the interpretation
of $f_0 ( 1710 )$ as the lightest scalar glueball. | 1994-01-19 | 2009-10-22 | [
"hep-lat"
] | H. Chen, J. Sexton, A. Vaccarino and D. Weingarten |
hep-lat/9401022 | Effective Sampling of Random Surfaces by Baby Universe Surgery | We propose a new, very efficient algorithm for sampling of random surfaces in
the Monte Carlo simulations, based on so-called baby universe surgery, i.e.
cutting and pasting of baby universes. It drastically reduces slowing down as
compared to the standard local flip algorithm, thereby allowing simulations of
large ran... | 1994-01-19 | 2009-10-22 | [
"hep-lat",
"hep-th"
] | J. Ambjorn, P. Bialas, J. Jurkiewicz, Z. Burda, B. Petersson |
hep-lat/9401019 | A Heavy Higgs Particle in the TeV Mass Range ? | The first simulation results are presented on Higgs mass calculations in the
spontaneously broken phase of the Higgs sector in the minimal Standard Model
with higher derivative regulator. A heavy Higgs particle is found in the TeV
mass range in the presence of a complex conjugate ghost pair at higher
energies. The ghos... | 1994-01-18 | 2009-10-22 | [
"hep-lat"
] | Chuan Liu, Karl Jansen, and Julius Kuti |
hep-lat/9401018 | Multicanonical study of $D=2$ $O(3)$ nonlinear $\sigma$-model | We present a new and exploratory approach to determine the
$\Delta\beta(\beta)$-shift in the $O(3)$ nonlinear $\sigma$-model. The method
is based on a scaling hypothesis for a free energy difference, which is assumed
to be valid in a situation where the mass gap correlation length $\xi$ is of
the order or larger than t... | 1994-01-18 | 2016-08-14 | [
"hep-lat"
] | T. Neuhaus (Fakult\"at f\"ur Physik, Universit\"at Bielefeld,
Bielefeld, Germany) |
hep-lat/9401017 | Mass Relation Between Top and Bottom Quarks | In the framework of the recently proposed electroweak theory on a Planck
lattice, we are able to solve approximately the lattice Dyson equation for the
fermion self-energy functions, and obtain the ratio between the masses of the
$t-$ and $b-$ quarks in terms of the electroweak coupling constants. The
predicted top mas... | 1994-01-18 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | She-Sheng Xue and Giuliano Preparata |
hep-lat/9401016 | A Numerical Study of the Hierarchical Ising Model: High Temperature
Versus Epsilon Expansion | We study numerically the magnetic susceptibility of the hierarchical model
with Ising spins ($\sigma =\pm 1$) above the critical temperature and for two
values of the epsilon parameter. The integrations are performed exactly, using
recursive methods which exploit the symmetries of the model. Lattices with up
to $2^18$ ... | 1994-01-16 | 2009-10-22 | [
"hep-lat",
"cond-mat",
"hep-th"
] | Y. Meurice, G. Ordaz and V.G.J. Rodgers |
hep-lat/9401015 | Lattice Perturbation Theory for $O(N)$-Symmetric $\sigma$-Models with
General Nearest-Neighbour Action I. Conventional Perturbation Theory | We compute the beta-function and the anomalous dimension of all the
non-derivative operators of the theory up to three-loops for the most general
nearest-neighbour O(N)-invariant action together with some contributions to the
four-loop beta-function. These results are used to compute the first analytic
corrections to v... | 1994-01-15 | 2009-10-22 | [
"hep-lat"
] | Sergio Caracciolo and Andrea Pelissetto |
hep-lat/9401014 | Deep Inelastic Scattering in Improved Lattice QCD. I. The first moment
of structure functions | We present the complete 1-loop perturbative computation of the
renormalization constants and mixing coefficients of the operators that measure
the first moment of deep inelastic scattering structure functions, employing
the nearest neighbor improved lattice QCD action. The interest of using this
action in Monte Carlo s... | 1994-01-14 | 2009-10-22 | [
"hep-lat"
] | Stefano Capitani and Giancarlo Rossi |
hep-lat/9401013 | Variational calculation of heavy-light meson properties | We present a new method for the study of heavy-light mesons in the static
approximation of lattice QCD which is optimally effective in isolating ground
and excited states. With ``MOST'' (Maximal Operator Smearing Technique), the
heavy quark is smeared at all possible positions relative to the light quark,
subject to th... | 1994-01-13 | 2008-11-26 | [
"hep-lat"
] | Terrence Draper and Craig McNeile |
hep-lat/9401012 | Spectroscopy and Renormalisation Group Flow of a Lattice
Nambu-Jona-Lasinio Model | We investigate a lattice Nambu--Jona-Lasinio model both by the Monte Carlo
method and Schwinger-Dyson equations. A comparison allows the discussion of
finite size effects and the extrapolation to infinite volume. We pay special
attention to the identification of particles and resonances. This enables us to
discuss reno... | 1994-01-13 | 2008-11-26 | [
"hep-lat"
] | A. Ali Khan, M. Goeckeler, R. Horsley, P.E.L. Rakow, G. Schierholz and
H. Stueben |
hep-lat/9401011 | Topography of the cooled $\cal{O}(3)$ vacuum | We investigate the {\it topography\/} of the \o3 vacuum after various degrees
of under-relaxed cooling, using the na\"{\i}ve action density and geometric and
field theoretical definitions of the topological charge density. The results
are presented graphically. (This is a cutdown version of the full paper which
is avai... | 1994-01-12 | 2007-05-23 | [
"hep-lat"
] | P.S. Spencer, C. Michael |
hep-lat/9401010 | Lattice QCD and Chiral Lagrangians | After a very brief review of the formalism of lattice gauge theories we show
how one can calculate the parameters of the continuum chiral Lagrangians
proceeding through the derivation of an effective lattice chiral Lagrangian as
an intermediary step. The derivation is done in the strong coupling limit. We
also discuss ... | 1994-01-11 | 2007-05-23 | [
"hep-lat",
"hep-ph"
] | Stanley Myint and Claudio Rebbi |
hep-lat/9401007 | Temperature Dependence of Extended and Fractional SU(3) Monopole
Currents | We examine in pure SU(3) the dependence of extended monopole current k and
cross-species extended monopole current k^{cross} on temperature t, monopole
size L, and fractional monopole charge 1/q. We find that features of both k and
k^{cross} are sensitive to t for a range of L and q. In particular, the
spatial-temporal... | 1994-01-11 | 2010-11-01 | [
"hep-lat",
"hep-ph"
] | Ken Yee |
hep-lat/9401009 | Chiral Perturbation Theory on the Lattice; Strong Coupling Expansion | We evaluate the coefficients of the effective chiral Lagrangian to $O(p^4)$
in the strong coupling, large-N expansion. In this limit we explicitly perform
the functional integral over fundamental degrees of freedom and obtain the
effective chiral Lagrangian. We perform this calculation on the Body Centered
Hypercubical... | 1994-01-11 | 2009-10-22 | [
"hep-lat",
"hep-ph"
] | Stanley Myint and Claudio Rebbi |
hep-lat/9401008 | New Results and Long-standing Questions in Finite Temperature QCD | We review recent results on QCD at finite temperature. In particular we will
discuss the chiral phase transition in two flavour QCD and new results on the
excitation spectrum in the plasma phase of QCD. | 1994-01-11 | 2009-10-22 | [
"hep-lat"
] | Frithjof Karsch (HLRZ, c/o KFA J\"ulich, J\"ulich, Germany and
Fakult\"at f\"ur Physik, Universit\"at Bielefeld, Bielefeld, Germany) |
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