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-th/9408111 | Hilbert Space Representation of an Algebra of Observables for q-Deformed
Relativistic Quantum Mechanics | Using a representation of the q-deformed Lorentz algebra as differential
operators on quantum Minkowski space, we define an algebra of observables for a
q-deformed relativistic quantum mechanics with spin zero. We construct a
Hilbert space representation of this algebra in which the square of the mass $
p^2 $ is diagon... | 1994-08-19 | 2010-11-01 | [
"hep-th"
] | W. Zippold |
hep-th/9408112 | Conformal Invariance of Interacting WZNW Models | We consider two level $k$ WZNW models coupled to each other through a
generalized Thirring-like current-current interaction. It is shown that in the
large $k$ limit, this interacting system can be presented as a two-parameter
perturbation around a nonunitary WZNW model. The perturbation operators are the
sigma model ki... | 1994-08-19 | 2007-05-23 | [
"hep-th"
] | O. A. Soloviev |
hep-th/9408110 | Computation of Yukawa Couplings for Calabi-Yau Hypersurfaces in Weighted
Projective Spaces | Greene, Morrison and Plesser \cite{GMP} have recently suggested a general
method for constructing a mirror map between a $d$-dimensional Calabi-Yau
hypersurface and its mirror partner for $d > 3$. We apply their method to
smooth hypersurfaces in weighted projective spaces and compute the Chern
numbers of holomorphic cu... | 1994-08-19 | 2009-10-28 | [
"hep-th"
] | Yakov Kanter |
hep-th/9408106 | Crossed modules and quantum groups in braided categories II | This is the second part of the paper. Results of the first part about crossed
modules are applied here to study of quantum groups in braided categories.
Correct cross product in the class of quantum braided groups is built.
Criterion when quantum braided group is cross product is otained. | 1994-08-18 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Yuri Bespalov |
hep-th/9408104 | Affine Lie Algebraic Origin of Constrained KP Hierarchies | We present an affine $sl (n+1)$ algebraic construction of the basic
constrained KP hierarchy. This hierarchy is analyzed using two approaches,
namely linear matrix eigenvalue problem on hermitian symmetric space and
constrained KP Lax formulation and we show that these approaches are
equivalent. The model is recognized... | 1994-08-18 | 2009-10-28 | [
"hep-th"
] | H. Aratyn, J.F. Gomes and A.H. Zimerman |
hep-th/9408107 | A Feynman-graph generator for any order of coupling constants | A computer program has been developed which generates Feynman graphs
automatically for scattering and decay processes in non-Abelian gauge theory of
high-energy physics. A new acceleration method is presented for both generating
and eliminating graphs. This method has been shown to work quite efficiently
for any order ... | 1994-08-18 | 2009-10-28 | [
"hep-th"
] | Toshiaki Kaneko |
hep-th/9408108 | A Manifestly Gauge-Invariant Approach to Quantum Theories of Gauge
Fields | In gauge theories, physical histories are represented by space-time
connections modulo gauge transformations. The space of histories is thus
intrinsically non-linear. The standard framework of constructive quantum field
theory has to be extended to face these {\it kinematical} non-linearities
squarely. We first present... | 1994-08-18 | 2007-05-23 | [
"hep-th"
] | A. Ashtekar, J. Lewandowski, D. Marolf, J. Mourao, T. Thiemann |
hep-th/9408109 | Free field realizations in representation theory and conformal field
theory | Invited lecture at the International Congress of Mathematicians, Zuerich,
August 3-11, 1994 (extended version), reviews free field realizations of affine
Kac-Moody and W-algebras and their applications. | 1994-08-18 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Edward Frenkel |
hep-th/9408103 | Potential energy in quantum gravity | We give a general expression for the static potential energy of the
gravitational interaction of two massive particles, in terms of an invariant
vacuum expectation value of the quantized gravitational field. This formula
holds for functional integral formulations of euclidean quantum gravity,
regularized to avoid confo... | 1994-08-18 | 2009-10-28 | [
"hep-th"
] | Giovanni Modanese (Max-Planck-Institut fuer Physik,
Werner-Heisenberg-Institut, Muenchen.) |
hep-th/9408105 | The Exponential Map for the Conformal Group 0(2,4) | We present a general method to obtain a closed, finite formula for the
exponential map from the Lie algebra to the Lie group, for the defining
representation of the orthogonal groups. Our method is based on the
Hamilton-Cayley theorem and some special properties of the generators of the
orthogonal group, and is also in... | 1994-08-18 | 2011-07-19 | [
"hep-th"
] | A.O.Barut, J.R.Zeni, A.J.Laufer |
hep-th/9408102 | Crossed modules and quantum groups in braided categories I | Let $H$ be a Hopf algebra in braided category $\cal C$. Crossed modules over
$H$ are objects with both module and comodule structures satisfying some
comatibility condition. Category ${\cal C}^H_H$ of crossed modules is braided
and is concrete realization of general categorical construction. For quantum
braided group $... | 1994-08-18 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Yuri Bespalov |
hep-th/9408101 | Conformal Factor Dynamics in the 1/N Expansion | We suggest to consider conformal factor dynamics as applying to composite
boundstates, in frames of the $1/N$ expansion. In this way, a new model of
effective theory for quantum gravity is obtained. The renormalization group
(RG) analysis of this model provides a framework to solve the cosmological
constant problem, si... | 1994-08-17 | 2009-09-17 | [
"hep-th"
] | E. Elizalde and S.D. Odintsov |
hep-th/9408099 | Monopoles, Duality and Chiral Symmetry Breaking in N=2 Supersymmetric
QCD | We study four dimensional $N=2$ supersymmetric gauge theories with matter
multiplets. For all such models for which the gauge group is $SU(2)$, we derive
the exact metric on the moduli space of quantum vacua and the exact spectrum of
the stable massive states. A number of new physical phenomena occur, such as
chiral sy... | 1994-08-17 | 2010-04-07 | [
"hep-th",
"hep-ph"
] | N. Seiberg and E. Witten |
hep-th/9408096 | Topology and quantization of abelian sigma model in (1+1) dimensions | It is known that there exist an infinite number of inequivalent quantizations
on a topologically nontrivial manifold even if it is a finite-dimensional
manifold. In this paper we consider the abelian sigma model in (1+1) dimensions
to explore a system having infinite degrees of freedom. The model has a field
variable $... | 1994-08-17 | 2009-10-28 | [
"hep-th"
] | Shogo Tanimura |
hep-th/9408100 | Field Redefinition Invariance and "Extra Terms" | We investigate the issue of coordinate redefinition invariance by carefully
performing nonlinear transformations in the discretized quantum mechanical path
integral. By resorting to hamiltonian path integral methods, we provide the
first complete derivation of the extra terms (beyond the usual jacobian term)
which aris... | 1994-08-17 | 2009-10-28 | [
"hep-th",
"cond-mat",
"hep-ph"
] | K.M. Apfeldorf and C.R. Ordonez |
hep-th/9408098 | Strings on a Cone and Black Hole Entropy | String propagation on a cone with deficit angle $2\pi (1- \frac{1}{N} ) $ is
described by constructing a non-compact orbifold of a plane by a $Z_{N}$
subgroup of rotations. It is modular invariant and has tachyons in the twisted
sectors that are localized to the tip of the cone. A possible connection with
the quantum c... | 1994-08-17 | 2009-10-28 | [
"hep-th"
] | Atish Dabholkar |
hep-th/9408095 | The Effective Action in Gauged Supergravity on Hyperbolic Background and
Induced Cosmological Constant | The one-loop effective action for 4-dimensional gauged supergravity with
negative cosmological constant, is investigated in space-times with compact
hyperbolic spatial section. The explicit expansion of the effective action as a
power series of the curvature on hyperbolic background is derived, making use
of heat-kerne... | 1994-08-17 | 2009-09-17 | [
"hep-th"
] | A.A. Bytsenko, S.D. Odintsov and s. Zerbini |
hep-th/9408093 | On equivalence between Bose/Fermi Virasoro characters | On the basis of the Andrews--Bailey construction, we derive fermionic sum
representations of Virasoro characters of non unitary minimal models ${\cal
M}(k,kp+p-1)$ and ${\cal M}(k,kp+1)$. These expressions include certain
expressions conjectured by the Stony Brook group as special cases. | 1994-08-17 | 2016-09-06 | [
"hep-th",
"math.QA"
] | Yas-Hiro Quano |
hep-th/9408097 | Combinatorial Quantization of the Hamiltonian Chern-Simons Theory II | This paper further develops the combinatorial approach to quantization of the
Hamiltonian Chern Simons theory advertised in \cite{AGS}. Using the theory of
quantum Wilson lines, we show how the Verlinde algebra appears within the
context of quantum group gauge theory. This allows to discuss flatness of
quantum connecti... | 1994-08-17 | 2015-06-26 | [
"hep-th"
] | A. Yu. Alekseev, H. Grosse, V. Schomerus |
hep-th/9408094 | Bracket Symmetries of the Classical N=1 String | We show that it is possible to extend Moore's analysis of the classical
scattering amplitudes of the bosonic string to those of the N=1 superstring.
Using the bracket relations we are able to show that all possible amplitudes
involving both bosonic and fermionic string states at arbitrary mass levels can
be expressed i... | 1994-08-17 | 2007-05-23 | [
"hep-th"
] | Jonathan D. Edwards |
hep-th/9408089 | Geometric Entropy, Wave Functionals, and Fermions | We develop techniques for calculating the ground state wave functional and
the geometric entropy for some simple field theories. Special attention is
devoted to fermions, which present special technical difficulties in this
regard. Explicit calculations are carried through for free mass bosons and
fermions in two dimen... | 1994-08-16 | 2015-06-26 | [
"hep-th",
"gr-qc"
] | Finn Larsen and Frank Wilczek |
hep-th/9408085 | Anomalous Magnetic Moment of Anyons | The anomalous magnetic moment of anyons is calculated to leading order in a
1/N expansion. It is shown that the gyromagnetic ratio g remains 2 to the
leading order in 1/N. This result strongly supports that obtained in
\cite{poly}, namely that g=2 is in fact exact. | 1994-08-16 | 2009-10-28 | [
"hep-th",
"cond-mat"
] | Gil Gat and Rashmi Ray |
hep-th/9408087 | General branching functions of affine Lie algebras | Explicit expressions are presented for general branching functions for cosets
of affine Lie algebras $\hat{g}$ with respect to subalgebras $\hat{g}^\prime$
for the cases where the corresponding finite dimensional algebras $g$ and
$g^\prime$ are such that $g$ is simple and $g^\prime$ is either simple or sums
of $u(1)$ t... | 1994-08-16 | 2011-07-19 | [
"hep-th"
] | Stephen Hwang and Henric Rhedin |
hep-th/9408092 | Conserved charges and soliton solutions in affine Toda theory | We study the conserved charges of affine Toda field theories by making use of
the conformally invariant extension of these theories. We compute the values of
all charges for the single soliton solutions, and show that these are related
to eigenvectors of the Cartan matrix of the finite-dimensional Lie algebra
underlyin... | 1994-08-16 | 2009-10-28 | [
"hep-th"
] | Michael Freeman |
hep-th/9408090 | Split Involution Coupled to Actual Gauge Symmetry | The split involution quantization scheme, proposed previously for pure
second--class constraints only, is extended to cover the case of the presence
of irreducible first--class constraints. The explicit Sp(2)--symmetry property
of the formalism is retained to hold. The constraint algebra generating
equations are formul... | 1994-08-16 | 2015-06-26 | [
"hep-th"
] | I. A. Batalin, S.L.Lyakhovich and I. V. Tyutin |
hep-th/9408086 | Virasoro character identities from the Andrews--Bailey construction | We prove $q$-series identities between bosonic and fermionic representations
of certain Virasoro characters. These identities include some of the
conjectures made by the Stony Brook group as special cases. Our method is a
direct application of Andrews' extensions of Bailey's lemma to recently
obtained polynomial identi... | 1994-08-16 | 2016-09-06 | [
"hep-th",
"math.QA"
] | Omar Foda and Yas-Hiro Quano |
hep-th/9408088 | Postmodern String Theory: Stochastic Formulation | In this paper we study the dynamics of a statistical ensemble of strings,
building on a recently proposed gauge theory of the string geodesic field. We
show that this stochastic approach is equivalent to the Carath\'eodory
formulation of the Nambu-Goto action, supplemented by an averaging procedure
over the family of c... | 1994-08-16 | 2019-08-17 | [
"hep-th"
] | A.Aurilia, E.Spallucci, I.Vanzetta |
hep-th/9408091 | On the Coleman-Hill Theorem | The Coleman-Hill theorem prohibits the appearance of radiative corrections to
the topological mass (more precisely, to the parity-odd part of the vacuum
polarization tensor at zero momentum) in a wide class of abelian gauge theories
in 2+1 dimensions. We re-express the theorem in terms of the effective action
rather th... | 1994-08-16 | 2009-10-28 | [
"hep-th"
] | Avinash Khare, R. MacKenzie and M.B. Paranjape |
hep-th/9408081 | A variational approach to the QCD wave functional:Dynamical mass
generation and confinement | We perform a variational calculation in the SU(N) Yang Mills theory in 3+1
dimensions. Our trial variational states are explicitly gauge invariant, and
reduce to simple Gaussian states in the zero coupling limit. Our main result is
that the energy is minimized for the value of the variational parameter away
form the pe... | 1994-08-15 | 2009-10-28 | [
"hep-th",
"hep-ph"
] | Ian I. Kogan and Alex Kovner |
hep-th/9408084 | Superradiance around Rotating Dilatonic Black Hole | We consider a superradiance effect around rotating dilatonic black holes. We
analyze two cases: one is an exact solution with the coupling constant
$\alpha=\sqrt{3}$, which effective action is reduced from the 5-dimensional
Kaluza-Klein theory, and the other is a slowly rotating dilatonic black holes
with arbitrary cou... | 1994-08-15 | 2009-10-28 | [
"hep-th",
"gr-qc"
] | Jun-ichirou Koga and Kei-ichi Maeda |
hep-th/9408082 | Extension of the N=2 Virasoro algebra by two primary fields of dimension
2 and 3 | We explicitly construct the extension of the N=2 super Virasoro algebra by
two super primary fields of dimension two and three with vanishing u(1)-charge.
Using a super covariant formalism we obtain two different solutions both
consistent for generic values of the central charge c. The first one can be
identified with ... | 1994-08-15 | 2009-10-28 | [
"hep-th"
] | Ralph Blumenhagen and Andreas Wisskirchen |
hep-th/9408083 | Strong-Weak Coupling Duality in Three Dimensional String Theory | Following an old result of Marcus and Schwarz we argue that in the heterotic
string theory compactified on a seven dimensional torus, the target space
duality group O(7,23;Z) and the strong-weak coupling duality transformations
combine into the group O(8,24;Z). We discuss symmetry of the combined spectrum
of elementary... | 1994-08-15 | 2009-09-15 | [
"hep-th"
] | Ashoke Sen |
hep-th/9408080 | The Dynamical Algebra of the Hydrogen Atom as a Twisted Loop Algebra | We show that the dynamical symmetry of the hydrogen atom leads in a natural
way to an infinite-dimensional algebra, which we identify as the positive
subalgebras of twisted Kac-Moody algebras of $ so(4)$. We also generalize our
results to the $N$-dimensional hydrogen atom. For odd $N$, we identify the
dynamical algebra... | 1994-08-14 | 2008-02-03 | [
"hep-th"
] | C. Daboul, J. Daboul and P. Slodowy |
hep-th/9408077 | Mapping Between Antisymmetric Tensor And Weinberg Formulations | In the framework of the classical field theory a mapping between
antisymmetric tensor matter fields and Weinberg's $2(2j+1)$ component
"bispinor" fields is considered. It is shown that such a mapping exists and
equations which describe the $j=1$ antisymmetric tensor field coincide with the
Hammer-Tucker equations compl... | 1994-08-13 | 2011-04-20 | [
"hep-th"
] | Valeri V. Dvoeglazov (Universidad Autonoma de Zacatecas) |
hep-th/9408078 | Representations of tensor categories and Dynkin diagrams | In this note we illustrate by a few examples the general principle:
interesting algebras and representations defined over Z_+ come from category
theory, and are best understood when their categorical origination has been
discovered. We show that indecomposable Z_+-representations of the character
ring of SU(2) satisfyi... | 1994-08-13 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Pavel Etingof and Mikhail Khovanov |
hep-th/9408079 | The Chern-Simons Coefficient in the Higgs Phase | We study one-loop corrections to the Chern-Simons coefficient $\kappa$ in
abelian self-dual Chern-Simons Higgs systems and their $N=2$ and $N=3$
supersymmetric generalizations in both symmetric and asymmetric phases.
One-loop corrections to the Chern-Simons coefficient of these systems turn out
to be integer multiples ... | 1994-08-13 | 2011-07-19 | [
"hep-th",
"cond-mat"
] | H.-C. Kao, K. Lee, C. Lee and T. Lee |
hep-th/9408071 | Dynamics of relativistic particle with Lagrangian dependent on
acceleration | Models of relativistic particle with Lagrangian ${\cal L}(k_1)$, depending on
the curvature of the worldline $k_1$, are considered. By making use of the
Frenet basis, the equations of motion are reformulated in terms of the
principal curvatures of the worldline. It is shown that for arbitrary
Lagrangian function ${\cal... | 1994-08-12 | 2009-10-28 | [
"hep-th"
] | V.V. Nesterenko, A. Feoli, and G. Scarpetta |
hep-th/9408068 | On "Non-Geometric" Contribution To The Entropy Of Black Hole Due To
Quantum Corrections | The quantum corrections to the entropy of charged black holes are calculated.
The Reissner-Nordstrem and dilaton black holes are considered. The appearance
of logarithmically divergent terms not proportional to the horizon area is
demonstrated. It is shown that the complete entropy which is sum of classical
Bekenstein-... | 1994-08-12 | 2011-05-05 | [
"hep-th"
] | S.N.Solodukhin |
hep-th/9408076 | From Weak to Strong Coupling in Two-Dimensional Gravity | The strong coupling physics of two dimensional gravity at C=7, 13, 19 is
deciphered, by building up on previous works along the same line (for a recent
review, of the background material, see hep-th/9408069). It is shown that
chirality becomes deconfined. The string suceptibility is derived, and found to
be real contra... | 1994-08-12 | 2009-10-28 | [
"hep-th"
] | Jean-Loup Gervais, Jean-Fran\c{c}ois Roussel |
hep-th/9408072 | Boundary terms in Nambu-Goto string action | We investigate classical strings defined by the Nambu-Goto action with the
boundary term added. We demonstrate that the latter term has a significant
bearing on the string dynamics. It is confirmed that new action terms that
depend on higher order derivatives of string coordinates cannot be considered
as continuous per... | 1994-08-12 | 2009-10-28 | [
"hep-th"
] | Leszek Hadasz and Pawel Wegrzyn (Jagellonian Univ.) |
hep-th/9408074 | A Strong Coupling Test of S-Duality | By studying the partition function of $N=4$ topologically twisted
supersymmetric Yang-Mills on four-manifolds, we make an exact strong coupling
test of the Montonen-Olive strong-weak duality conjecture. Unexpected and
exciting links are found with two-dimensional rational conformal field theory. | 1994-08-12 | 2010-04-07 | [
"hep-th"
] | Cumrun Vafa and Edward Witten |
hep-th/9408075 | A Note on Abelian Conversion of Constraints | We show that for a system containing a set of general second class
constraints which are linear in the phase space variables, the Abelian
conversion can be obtained in a closed form and that the first class
constraints generate a generalized shift symmetry. We study in detail the
example of a general first order Lagran... | 1994-08-12 | 2008-11-26 | [
"hep-th"
] | Ricardo Amorim and Ashok Das |
hep-th/9408070 | Algebras with Operator and Campbell--Hausdorff Formula | We introduce some new classes of algebras and estabilish in these algebras
Campbell--Hausdorff like formula. We describe the application of these
constructions to the problem of the connectivity of the Feynman graphs
corresponding to the Green functions in Quantum Fields Theory. | 1994-08-12 | 2009-10-28 | [
"hep-th",
"math.QA"
] | O. M. Khudaverdian (Yerevan State University) |
hep-th/9408073 | Tree-Level Unitarity Constraints on the Gravitational Couplings of
Higher-Spin Massive Fields | We analyse the high-energy behavior of tree-level graviton Compton amplitudes
for particles of mass m and arbitrary spin, concentrating on a combination of
forward amplitudes that will be unaffected by eventual cross- couplings to
other, higher spins. We first show that for any spin larger than 2, tree-level
unitarity ... | 1994-08-12 | 2008-11-26 | [
"hep-th",
"gr-qc"
] | A.Cucchieri, S. Deser and M. Porrati |
hep-th/9408069 | Quantum deformations of $sl(2)$: The hard core of two dimensional
gravity | The quantum group structure of the Liouville theory is reviewd and shown to
be an important tool for solving the theory. | 1994-08-12 | 2009-09-25 | [
"hep-th"
] | Jean-Loup Gervais |
hep-th/9408066 | Black-hole thermodynamics and renormalization | Ultraviolet regime in quantum theory with horizons, contrary to ordinary
theory, depends on the temperature of the system due to additional surface
divergences in the effective action. We evaluate their general one-loop
structure paying attention to effects of the curvature of the space-time near
the horizon. In partic... | 1994-08-11 | 2009-10-28 | [
"hep-th"
] | Dmitri Fursaev |
hep-th/9408067 | Algebraic renormalization of antisymmetric tensor matter fields | The algebraic renormalization of a recently proposed abelian axial gauge
model with antisymmetric tensor matter fields is presented. | 1994-08-11 | 2009-10-28 | [
"hep-th"
] | Vitor Lemes, Ricardo Renan and S. P. Sorella |
hep-th/9408065 | Global Aspects of the WZNW Reduction to Toda Theories | It is well-known that the Toda Theories can be obtained by reduction from the
Wess-Zumino-Novikov-Witten (WZNW) model, but it is less known that this WZNW
$\rightarrow$ Toda reduction is \lq incomplete'. The reason for this
incompleteness being that the Gauss decomposition used to define the Toda
fields from the WZNW f... | 1994-08-11 | 2008-11-26 | [
"hep-th"
] | I. Tsutsui and L. Feher |
hep-th/9408059 | On The Inhomogeneous Quantum Groups | Using the multi-parametric deformation of the algebra of functions on $
\GL{n+1} $ and the universal enveloping algebra $ \U{\igl{n+1}} $, we construct
the multi-parametric quantum groups $ \IGLq{n} $ and $ \Uq{\igl{n}} $. | 1994-08-10 | 2008-02-03 | [
"hep-th",
"math.QA"
] | A. Shariati and A. Aghamohammadi |
hep-th/9408062 | Harmonic Superspaces in Low Dimensions | Harmonic superspaces for spacetimes of dimension $d\leq 3$ are constructed.
Some applications are given. | 1994-08-10 | 2010-04-06 | [
"hep-th"
] | P.S.Howe and M.I.Leeming |
hep-th/9408063 | Tachyon Condensates and Anisotropic Universe | We investigate the cosmological solutions in closed bosonic string theory in
the presence of non zero tachyon condensate. We specifically obtain time
dependent solutions which describe an anisotropic universe. We also discuss the
nature of such time dependent solutions when small tachyon fluctuations around
the condens... | 1994-08-10 | 2009-10-28 | [
"hep-th"
] | Swapna Mahapatra and Sudipta Mukherji |
hep-th/9408061 | Vacuum Mass Spectra for SU(N) Self-Dual Chern-Simons-Higgs Systems | We study the $SU(N)$ self-dual Chern-Simons-Higgs systems with adjoint matter
coupling, and show that the sixth order self-dual potential has $p(N)$ gauge
inequivalent degenerate minima, where $p(N)$ is the number of partitions of
$N$. We compute the masses of the gauge and scalar excitations in these
different vacua, ... | 1994-08-10 | 2009-10-28 | [
"hep-th"
] | Gerald Dunne |
hep-th/9408064 | $A_\infty$ Algebras and the Cohomology of Moduli Spaces | We introduce the notion of cyclic cohomology of an A-infinity algebra and
show that the deformations of an A-infinity algebra which preserve an invariant
inner product are classified by this cohomology. We use this result to
construct some cycles on the moduli space of algebraic curves. The paper also
contains a review... | 1994-08-10 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Michael Penkava and Albert Schwarz |
hep-th/9408060 | O(d,d;R) Deformations of Complex Structures and Extended Worldsheet
Supersymmetry | It is shown that the O(d,d;R) deformations of the superstring vacua and the
O(d,d+16;R) deformations of the heterotic string vacua preserve extended
worldsheet supersymmetry and, hence, generate superconformal deformations. The
transformations of the complex structures are given explicitly and the action
of the discret... | 1994-08-10 | 2009-10-28 | [
"hep-th"
] | S. F. Hassan |
hep-th/9408058 | Exact, E=0, Solutions for General Power-Law Potentials. II. Quantum Wave
Functions | For zero energy, $E=0$, we derive exact, quantum solutions for {\it all}
power-law potentials, $V(r) = -\gamma/r^{\nu}$, with $\gamma > 0$ and $-\infty
< \nu < \infty$. The solutions are, in general, Bessel functions of powers of
$r$. For $\nu > 2$ and $l \ge 1$ the solutions are normalizable; they
correspond to states... | 1994-08-09 | 2007-05-23 | [
"hep-th"
] | Jamil Daboul and Michael Martin Nieto |
hep-th/9408051 | The topological string associated with a simple singularity of type $D$ | The partition function of $D_{N+1}$ topological string, the coupled system of
topological gravity and $D_{N+1}$ topological minimal matter , is proposed in
the framework of KP hierarchy. It is specified by the elements of $GL(\infty)$
which constitute the deformed family from the $A_{2N-1}$ topological string.
Its disp... | 1994-08-09 | 2014-11-18 | [
"hep-th"
] | Toshio Nakatsu |
hep-th/9408054 | High Temperature Field Theory Beyond Perturbation Theory | For realistic values of the Higgs boson mass the high temperature electroweak
phase transition cannot be described perturbatively. The symmetric phase is
governed by a strongly interacting $SU(2)$ gauge theory. Typical masses of
excitations and scales of condensates are set by the ``high temperature
confinement scale''... | 1994-08-09 | 2008-02-03 | [
"hep-th"
] | Christof Wetterich |
hep-th/9408052 | Spatial Geometry of Hamiltonian Gauge Theories | The Hamiltonians of $SU(2)$ and $SU(3)$ gauge theories in 3+1 dimensions can
be expressed in terms of gauge invariant spatial geometric variables, i.e.,
metrics, connections and curvature tensors which are simple local functions of
the non-Abelian electric field. The transformed Hamiltonians are local. New
results from... | 1994-08-09 | 2009-10-28 | [
"hep-th"
] | Daniel Z. Freedman |
hep-th/9408057 | Exact, E=0, Solutions for General Power-Law Potentials. I. Classical
Orbits | For zero energy, $E=0$, we derive exact, classical solutions for {\em all}
power-law potentials, $V(r)=-\gamma/r^\nu$, with $\gamma>0$ and $-\infty
<\nu<\infty$. When the angular momentum is non-zero, these solutions lead to
the orbits $\r(t)= [\cos \mu (\th(t)-\th_0(t))]^{1/\mu}$, for all $\mu \equiv
\nu/2-1 \ne 0$. W... | 1994-08-09 | 2009-10-28 | [
"hep-th"
] | Jamil Daboul and Michael Martin Nieto |
hep-th/9408055 | Geometry and Dynamics with Time-Dependent Constraints | We describe how geometrical methods can be applied to a system with
explicitly time-dependent second-class constraints so as to cast it in
Hamiltonian form on its physical phase space. Examples of particular interest
are systems which require time-dependent gauge fixing conditions in order to
reduce them to their physi... | 1994-08-09 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | Jonathan M. Evans and Philip A. Tuckey |
hep-th/9408053 | Background Independent Algebraic Structures in Closed String Field
Theory | We construct a Batalin-Vilkovisky (BV) algebra on moduli spaces of Riemann
surfaces. This algebra is background independent in that it makes no reference
to a state space of a conformal field theory. Conformal theories define a
homomorphism of this algebra to the BV algebra of string functionals. The
construction begin... | 1994-08-09 | 2016-09-06 | [
"hep-th"
] | Ashoke Sen and Barton Zwiebach |
hep-th/9408050 | The Exact Renormalization Group and Approximations | We review the Exact Renormalization Group equations of Wegner and Houghton in
an approximation which permits both numerical and analytical studies of
nonperturbative renormalization flows. We obtain critical exponents numerically
and with the local polynomial approximation (LPA), and discuss the advantages
and shortcom... | 1994-08-09 | 2009-09-25 | [
"hep-th"
] | Peter E. Haagensen, Yuri Kubyshin, Jos\'e Ignacio Latorre and E.
Moreno |
hep-th/9408056 | Anyonic FRT construction | The Faddeev-Reshetikhin-Takhtajan method to construct matrix bialgebras from
non-singular solutions of the quantum Yang-Baxter equation is extended to the
anyonic or $\Z_n$-graded case. The resulting anyonic quantum matrices are
braided groups in which the braiding is given by a phase factor. | 1994-08-09 | 2009-10-28 | [
"hep-th"
] | Shahn Majid and M.J. Rodriguez-Plaza |
hep-th/9408046 | Large N Phase Transitions and Multi-Critical Behaviour in Generalized 2D
QCD | Using matrix model techniques we investigate the large N limit of generalized
2D Yang-Mills theory. The model has a very rich phase structure. It exhibits
multi-critical behavior and reveals a third order phase transitions at all
genera besides {\it torus}. This is to be contrasted with ordinary 2D
Yang-Mills which, at... | 1994-08-08 | 2009-10-28 | [
"hep-th"
] | B.Rusakov and S.Yankielowicz |
hep-th/9408044 | Symplectic Quantization for Reducible Systems | We study an extension of the symplectic formalism in order to quantize
reducible systems. We show that a procedure like {\it ghost-of-ghost} of the
BFV method can be applied in terms of Lagrange multipliers. We use the
developed formalism to quantize the antisymmetric Abelian gauge fields. | 1994-08-08 | 2015-06-26 | [
"hep-th"
] | J. Barcelos-Neto and M.B.D. Silva |
hep-th/9408048 | N=2 Current Algebras for Non-Semi-Simple Groups | We examine the problem of constructing N=2 superconformal algebras out of N=1
non-semi-simple affine Lie algebras. These N=2 superconformal theories share
the property that the super Virasoro central charge depends only on the
dimension of the Lie algebra. We find, in particular, a construction having a
central charge ... | 1994-08-08 | 2010-11-01 | [
"hep-th"
] | N. Mohammedi |
hep-th/9408043 | Finite Fermion Density Effects on the Electroweak String | We consider an Electroweak string in the background of a uniform distribution
of cold fermionic matter. As a consequence of the fermion number
non-conservation in the Weinberg-Salam model, the string produces a long-range
magnetic field. | 1994-08-08 | 2009-10-28 | [
"hep-th",
"hep-ph"
] | G.Bimonte and G.Lozano |
hep-th/9408049 | A Nonstandard Supersymmetric KP Hierarchy | We show that the supersymmetric nonlinear Schr\"odinger equation can be
written as a constrained super KP flow in a nonstandard representation of the
Lax equation. We construct the conserved charges and show that this system
reduces to the super mKdV equation with appropriate identifications. We
construct various flows... | 1994-08-08 | 2015-06-26 | [
"hep-th"
] | J. C. Brunelli and A. Das |
hep-th/9408047 | Inequivalence of the Massive Vector Meson and Higgs Models on a Manifold
with Boundary | The exact quantization of two models, the massive vector meson model and the
Higgs model in the London limit, both describing massive photons, is presented.
Even though naive arguments (based on gauge-fixing) may indicate the
equivalence of these models, it is shown here that this is not true in general
when we conside... | 1994-08-08 | 2014-11-18 | [
"hep-th",
"cond-mat"
] | L. Chandar, E. Ercolessi |
hep-th/9408045 | Constrained Analysis of Topologically Massive Gravity | We quantize the Einstein gravity in the formalism of weak gravitational
fields by using the constrained Hamiltonian method. Special emphasis is given
to the 2+1 spacetime dimensional case where a (topological) Chern-Simons term
is added to the Lagrangian. | 1994-08-08 | 2009-10-28 | [
"hep-th"
] | J. Barcelos-Neto and T.G. Dargam |
hep-th/9408042 | Lotka--Volterra Type Equations and their Explicit Integration | In the present note we give an explicit integration of some
two--dimensionalised Lotka--Volterra type equations associated with simple Lie
algebras, other than the familiar $A_n$ case, possessing a representation
without branching. This allows us, in particular, to treat the first
fundamental representations of $A_r$, ... | 1994-08-08 | 2009-10-28 | [
"hep-th"
] | Jean-Loup Gervais, Mikhail V. Saveliev |
hep-th/9408041 | Current-Like Variables in Massive and Massless Integrable Models | Lectures delivered at the International School of Physics "Enrico Fermi",
held in Villa Monastero, Varenna, Italy, 94. | 1994-08-07 | 2007-05-23 | [
"hep-th"
] | L.D. Faddeev |
hep-th/9408040 | Extremal black holes as exact string solutions | We show that the leading order solution describing an extremal electrically
charged black hole in string theory is, in fact, an exact solution to all
orders in $\a'$ when interpreted in a Kaluza-Klein fashion. This follows from
the observation that it can be obtained via dimensional reduction from a five
dimensional ba... | 1994-08-06 | 2009-09-17 | [
"hep-th",
"gr-qc"
] | G.T. Horowitz and A.A. Tseytlin |
hep-th/9408037 | Realizations of the Monster Lie algebra | We study aspects of the theory of generalized Kac-Moody Lie algebras (or
Borcherds algebras) and their standard modules. It is shown how such an algebra
with no mutually orthogonal imaginary simple roots, including Borcherds'
Monster Lie algebra $\frak m$, can be naturally constructed from a certain
Kac-Moody subalgebr... | 1994-08-05 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Elizabeth Jurisich, James Lepowsky and R. L. Wilson |
hep-th/9408033 | Superstrings from Hamiltonian Reduction | In any string theory there is a hidden, twisted superconformal symmetry
algebra, part of which is made up by the BRST current and the anti-ghost. We
investigate how this algebra can be systematically constructed for strings with
$N\!-\!2$ supersymmetries, via quantum Hamiltonian reduction of the Lie
superalgebras $osp(... | 1994-08-05 | 2009-10-28 | [
"hep-th"
] | A. Boresch, K. Landsteiner, W. Lerche, A. Sevrin |
hep-th/9408032 | Projective Invariance and One-Loop Effective Action in Affine-Metric
Gravity Interacting with Scalar Field | We investigate the influence of the projective invariance on the
renormalization properties of the theory. One-loop counterterms are calculated
in the most general case of interaction of gravity with scalar field. | 1994-08-05 | 2010-04-06 | [
"hep-th",
"gr-qc"
] | M.Yu.Kalmykov, P.I.Pronin and K.V.Stepanyantz |
hep-th/9408038 | BFT Quantization of Chiral-Boson Theories | We use the method due to Batalin, Fradkin and Tyutin (BFT) for the
quantization of chiral boson theories. We consider the Floreanini-Jackiw (FJ)
formulation as well as others with linear constraints. | 1994-08-05 | 2009-10-28 | [
"hep-th"
] | R. Amorim and J. Barcelos-Neto |
hep-th/9408034 | Solutions of the Master Virasoro Equations as Conformal Points of
Perturbed WZNW Model | It is shown that the master equation of the affine-Virasoro construction on
the unitary affine algebra naturally emerges in the fusion algebra of the
nonunitary level $k$ WZNW model. Operators corresponding to solutions of the
master equation are suitable for performing one-parametrical renormalizable
perturbation arou... | 1994-08-05 | 2007-05-23 | [
"hep-th"
] | O. A. Soloviev |
hep-th/9408029 | Critical Scaling and Continuum Limits in the D>1 Kazakov-Migdal Model | I investigate the Kazakov-Migdal (KM) model -- the Hermitean gauge-invariant
matrix model on a D-dimensional lattice. I utilize an exact large-N solution of
the KM model with a logarithmic potential to examine its critical behavior. I
find critical lines associated with gamma_{string}=-1/2 and gamma_{string}=0 as
well ... | 1994-08-05 | 2009-10-28 | [
"hep-th",
"hep-lat"
] | Yu. Makeenko |
hep-th/9408039 | Breakdown of the semiclassical approximation at the black hole horizon | The definition of matter states on spacelike hypersurfaces of a 1+1
dimensional black hole spacetime is considered. The effect of small quantum
fluctuations of the mass of the black hole due to the quantum nature of the
infalling matter is taken into account. It is then shown that the usual
approximation of treating th... | 1994-08-05 | 2010-11-01 | [
"hep-th",
"gr-qc"
] | E. Keski-Vakkuri, G. Lifschytz, S.D. Mathur and M.E. Ortiz |
hep-th/9408031 | Inhomogeneous quantum groups IGL_{q,r}(N): Universal enveloping algebra
and differential calculus | A review of the multiparametric linear quantum group GL_qr(N), its real
forms, its dual algebra U(gl_qr(N)) and its bicovariant differential calculus
is given in the first part of the paper.
We then construct the (multiparametric) linear inhomogeneous quantum group
IGL_qr(N) as a projection from GL_qr(N+1), or equiva... | 1994-08-05 | 2009-09-02 | [
"hep-th",
"math.QA"
] | P. Aschieri and L. Castellani |
hep-th/9408030 | Yang-Mills gauge anomalies in the presence of gravity with torsion | The BRST transformations for the Yang-Mills gauge fields in the presence of
gravity with torsion are discussed by using the so-called Maurer-Cartan
horizontality conditions. With the help of an operator $\d$ which allows to
decompose the exterior spacetime derivative as a BRST commutator we solve the
Wess-Zumino consis... | 1994-08-05 | 2010-04-06 | [
"hep-th"
] | O. Moritsch, M. Schweda and T. Sommer |
hep-th/9408036 | On the Geometry of Moduli Space of Vacua in N=2 Supersymmetric
Yang-Mills Theory | We consider generic properties of the moduli space of vacua in $N=2$
supersymmetric Yang--Mills theory recently studied by Seiberg and Witten. We
find, on general grounds, Picard--Fuchs type of differential equations
expressing the existence of a flat holomorphic connection, which for one
parameter (i.e. for gauge grou... | 1994-08-05 | 2017-09-07 | [
"hep-th"
] | A. Ceresole, R. D'Auria and S. Ferrara |
hep-th/9408035 | The integrable hierarchy constructed from a pair of KdV-type hierarchies
and its associated $W$ algebra | For any two arbitrary positive integers `$n$' and `$m$', using the $m$--th
KdV hierarchy and the $(n+m)$--th KdV hierarchy as building blocks, we are able
to construct another integrable hierarchy (referred to as the $(n,m)$--th KdV
hierarchy). The $W$--algebra associated to the \shs\, of the $(n,m)$--th KdV
hierarchy ... | 1994-08-05 | 2009-10-28 | [
"hep-th"
] | L. Bonora, Q.P. Liu and C.S. Xiong |
hep-th/9408028 | A superspace formulation of the BV action | We show that the BV (Batalin Vilkovisky) action, formulated with an extended
BRST symmetry (including the shift symmetry), is also invariant under an
extended anti-BRST transformation (where the antifields are the parameters of
the transformation), when the gauge fixing Lagrangian is both BRST and
anti-BRST invariant. ... | 1994-08-04 | 2008-11-26 | [
"hep-th"
] | Nelson R.F. Braga and Ashok Das |
hep-th/9408020 | On Quantum Jumps, Events and Spontaneous Localization Models | We propose a definite meaning to the concepts of "experiment", "measurement"
and "event" in the event-enhanced formalism of quantum theory. A minimal
piecewise deterministic process is given that can be used for a computer
simulation of real time series of experiments on single quantum objects. As an
example a generali... | 1994-08-04 | 2016-09-06 | [
"hep-th"
] | A. Jadczyk |
hep-th/9408024 | Non-Standard Fermion Propagators from Conformal Field Theory | It is shown that Weyl spinors in 4D Minkowski space are composed of primary
fields of half-integer conformal weights. This yields representations of
fermionic 2-point functions in terms of correlators of primary fields with a
factorized transformation behavior under the Lorentz group. I employ this
observation to deter... | 1994-08-04 | 2015-06-26 | [
"hep-th"
] | Rainer Dick |
hep-th/9408027 | Relations between some analytic representations of one-loop scalar
integrals | We compare several parametrized analytic expressions for an arbitrary
off-shell one-loop $n$-point function in scalar field theory in $D$-dimensional
space-time, and show their equivalence both directly and through path-integral
methods. | 1994-08-04 | 2009-10-28 | [
"hep-th",
"hep-ph"
] | J.W. van Holten |
hep-th/9408026 | Circular Strings in De Sitter Spacetime | String propagation is investigated in de Sitter and black hole backgrounds
using both exact and approximative methods. The circular string evolution in de
Sitter space is discussed in detail with respect to energy and pressure,
mathematical solution and physical interpretation, multi-string solutions etc.
We compare wi... | 1994-08-04 | 2009-09-25 | [
"hep-th"
] | A.L. Larsen |
hep-th/9408023 | Stationarity of Inflation and Predictions of Quantum Cosmology | We describe several different regimes which are possible in inflationary
cosmology. The simplest one is inflation without self-reproduction of the
universe. In this scenario the universe is not stationary. The second regime,
which exists in a broad class of inflationary models, is eternal inflation with
the self-reprod... | 1994-08-04 | 2009-09-29 | [
"hep-th",
"astro-ph",
"gr-qc",
"hep-ph"
] | Juan Garcia-Bellido and Andrei Linde |
hep-th/9408025 | The cosmon model for an asymptotically vanishing time-dependent
cosmological ``constant'' | We investigate the coupled system of gravity and a scalar with exponential
potential. The energy momentum tensor of the scalar field induces a
time-dependent cosmological ``constant''. This adjusts itself dynamically to
become in the ``late'' universe (including today) proportional to the energy
density of matter and r... | 1994-08-04 | 2011-05-23 | [
"hep-th",
"astro-ph"
] | Christoph Wetterich |
hep-th/9408021 | On Quantum Jumps, Events and Spontaneous Localization Models | We propose a definite meaning to the concepts of "experiment", "measurement"
and "event" in the event-enhanced formalism of quantum theory. A minimal
piecewise deterministic process is given that can be used for a computer
simulation of real time series of experiments on single quantum objects. As an
example a generali... | 1994-08-04 | 2016-09-06 | [
"hep-th",
"cond-mat",
"gr-qc"
] | A. Jadczyk |
hep-th/9408015 | Finite-size Analysis of $O(N)$ Nonlinear $\sigma$ Model on Semi-compact
Spaces | Fisher's phenomenological renormalization method is used to calculate the
mass gap and the correlation length of the $O(N)$ nonlinear $\sigma$ model on a
semi-compact space $S^{1}\times {\bf R}^{2}$. This shows that the ultraviolet
momentum cut-off does not conflict with the infrared cut-off along the $S^{1}$
direction... | 1994-08-03 | 2007-05-23 | [
"hep-th"
] | Akira Fujii |
hep-th/9408017 | Projectivised representations of $U_q osp(2,2)$ | We construct representations of the enveloping algebra $U_q osp(2,2)$ in
terms of finite difference operators and we discuss this result in the
framework of quasi-exactly-solvable equations. | 1994-08-03 | 2007-05-23 | [
"hep-th"
] | Y. Brihaye, S. Giller and P. Kosinski |
hep-th/9408016 | Speed of Light in Non--Trivial Vacua | We unify all existing results on the change of the speed of low--energy
photons due to modifications of the vacuum, finding that it is given by a
universal constant times the quotient of the difference of energy densities
between the usual and modified vacua over the mass of the electron to the
fourth power. Whether ph... | 1994-08-03 | 2016-09-06 | [
"hep-th"
] | J.I. Latorre, P. Pascual and R. Tarrach |
hep-th/9408019 | W-symmetry and the rigid particle | We prove that $\W_3$ is the gauge symmetry of the scale-invariant rigid
particle, whose action is given by the integrated extrinsic curvature of its
world line. This is achieved by showing that its equations of motion can be
written in terms of the Boussinesq operator. The $\W_3$ generators $T$ and $W$
then appear resp... | 1994-08-03 | 2009-10-28 | [
"hep-th"
] | E. Ramos and J. Roca |
hep-th/9408022 | Quantum Mechanics of Multi-Prong Potentials | We describe the bound state and scattering properties of a quantum mechanical
particle in a scalar $N$-prong potential. Such a study is of special interest
since these situations are intermediate between one and two dimensions. The
energy levels for the special case of $N$ identical prongs exhibit an
alternating patter... | 1994-08-03 | 2009-10-28 | [
"hep-th"
] | A. Gangopadhyaya, A. Pagnamenta and U. Sukhatme |
hep-th/9408018 | Generalized QCD$_2$ via the Bilocal Method | We use the bilocal method to derive the large $N$ solution of the most
general $QCD_2$. | 1994-08-03 | 2015-06-26 | [
"hep-th"
] | I. Pesando |
hep-th/9408008 | The coherent states: old geometrical methods in new quantum clothes | A geometric characterization of transition amplitudes between coherent
states, or equivalently, of the hermitian scalar product of holomorphic cross
sections in the associated D - M tilda - module, in terms of the embedding of
the cohe- rent state manifold M-tilda into a projective Hilbert space is
proposed. Cohe- rent... | 1994-08-02 | 2007-05-23 | [
"hep-th"
] | Stefan Berceanu |
hep-th/9408006 | On Type-I Quantum Affine Superalgebras | The type-I simple Lie-superalgebras are $sl(m|n)$ and $osp(2|2n)$. We study
the quantum deformations of their untwisted affine extensions
$U_q(sl(m|n)^{(1)})$ and $U_q(osp(2|2n)^{(1)})$. We identify additional
relations between the simple generators (``extra $q$-Serre relations") which
need to be imposed to properly de... | 1994-08-02 | 2009-10-28 | [
"hep-th",
"math.QA"
] | Gustav W. Delius, Mark D. Gould, Jon R. Links, Yao-Zhong Zhang |
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