id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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hep-th/9207038 | Compensating Fields and Anomalies in Supergravity | We discuss the quantization of theories which are formulated using
compensating fields. In particular, we discuss the relation between the
components formulation and the superspace formulation of supergravity theories.
The requirement that the compensating field can be eliminated at the quantum
level gives rise to on-s... | 1992-07-13 | 2009-10-22 | [
"hep-th"
] | Yigal Shamir |
hep-th/9207043 | Self-Dual N=8 Supergravity as Closed N=2(4) Strings | As open N=2 or 4 strings describe self-dual N=4 super Yang-Mills in 2+2
dimensions, the corresponding closed (heterotic) strings describe self-dual
ungauged (gauged) N=8 supergravity. These theories are conveniently formulated
in a chiral superspace with general supercoordinate and local OSp(8|2) gauge
invariances. The... | 1992-07-13 | 2010-11-01 | [
"hep-th"
] | W. Siegel |
hep-th/9207039 | Current Algebra in Three Dimensions | We study a three dimensional analogue of the Wess--Zumino--Witten model,
which describes the Goldstone bosons of three dimensional Quantum
Chromodynamics. The topologically non--trivial term of the action can also be
viewed as a nonlinear realization of Chern--Simons form. We obtain the current
algebra of this model by... | 1992-07-13 | 2009-10-22 | [
"hep-th"
] | G. Ferretti and S.G. Rajeev |
hep-th/9207035 | Classification of Superconformal Algebras with Quadratic Non-Linearity | A unified treatment of both superconformal and quasisuperconformal algebras
with quadratic non-linearity is given. General formulas describing their
structure are found by solving the Jacobi identities. A complete classification
of quasisuperconformal and ${\bf Z}_2\times{\bf Z}_2$-graded algebras are
obtained and in a... | 1992-07-12 | 2007-05-23 | [
"hep-th"
] | E.S.Fradkin and V.Ya.Linetsky |
hep-th/9207034 | Quantum Theories of Dilaton Gravity | Quantization of two-dimensional dilaton gravity coupled to conformal matter
is investigated. Working in conformal gauge about a fixed background metric,
the theory may be viewed as a sigma model whose target space is parameterized
by the dilaton $\phi$ and conformal factor $\rho$. A precise connection is
given between ... | 1992-07-11 | 2009-09-17 | [
"hep-th"
] | Steven B. Giddings and Andrew Strominger |
hep-th/9207031 | Commuting quantities and exceptional W-algebras | Sets of commuting charges constructed from the current of a U(1) Kac-Moody
algebra are found. There exists a set S_n of such charges for each positive
integer n > 1; the corresponding value of the central charge in the
Feigin-Fuchs realization of the stress tensor is c = 13-6n-6/n. The charges in
each series can be wri... | 1992-07-10 | 2015-06-26 | [
"hep-th"
] | M.D. Freeman, K. Hornfeck and P. West |
hep-th/9207032 | Reduction of the Knizhnik-Zamolodchikov Equation - a Way of Producing
Virasoro Algebra Singular Vectors | It is shown that the sl(2,C) KZ equation for (half-) integer isospins
recovers, up to a gauge transformation, the matrix system for Virasoro algebra
singular vectors of Bauer et al. In the case of Kac-Kazhdan spins the general
(infinite matrix) KZ system is truncated due to the decoupling of the A^(1)_1
singular vector... | 1992-07-10 | 2009-10-22 | [
"hep-th"
] | A.Ch. Ganchev and V.B. Petkova |
hep-th/9207033 | On the Problem of the Uniformly Accelerated Oscillator | The particle detector model consisting of a harmonic oscillator coupled to a
scalar field in $1+1$ dimensions is investigated in the inertial case. The same
approach is then used in the accelerating case. The absence of radiation from a
uniformly accelerated detector in a stationnary state is discussed and
clarified. | 1992-07-10 | 2009-10-22 | [
"hep-th"
] | S. Massar, R. Parentani, R. Brout |
hep-th/9207024 | The N=2 open string | We show that the N=2 open string describes a theory of self-dual Yang Mills
(SDYM) in (2,2) dimensions. The coupling to the closed sector is described by
SDYM in a Kahler background, with the Yang-Mills fields providing a source term
to the self-duality equation in the gravity sector. The four-point S-matrix
elements o... | 1992-07-09 | 2010-11-01 | [
"hep-th"
] | Neil Marcus (U of Tel-Aviv) |
hep-th/9207027 | Supersymmetric Black Holes from Toda Theories | On the example of nonabelian Toda type theory associated with the Lie
superalgebra $osp(2|4)$ we show that this integrable dynamical system is
relevant to a black hole background metric in the corresponding target space.
In the even sector the model under consideration reduces to the exactly
solvable conformal theory (... | 1992-07-09 | 2009-10-22 | [
"hep-th"
] | Fran\c{c}ois Delduc, Jean-Loup Gervais, Mikhail Saveliev |
hep-th/9207029 | Conformal fields: a class of representations of Vect(N) | $Vect(N)$, the algebra of vector fields in $N$ dimensions, is studied. Some
aspects of local differential geometry are formulated as $Vect(N)$
representation theory. There is a new class of modules, {\it conformal fields},
whose restrictions to the subalgebra $sl(N+1) \subset Vect(N)$ are
finite-dimensional $sl(N+1)$ r... | 1992-07-09 | 2015-06-26 | [
"hep-th"
] | T. A. Larsson |
hep-th/9207026 | A quantum group version of quantum gauge theories in two dimensions | For the special case of the quantum group $SL_q (2,{\bf C})\ (q= \exp \pi
i/r,\ r\ge 3)$ we present an alternative approach to quantum gauge theories in
two dimensions. We exhibit the similarities to Witten's combinatorial approach
which is based on ideas of Migdal. The main ingredient is the Turaev-Viro
combinatorial ... | 1992-07-09 | 2015-06-26 | [
"hep-th"
] | M. Karowski, R. Schrader, FU-Berlin |
hep-th/9207028 | Vanishing of the Cosmological Constant in Stabilized Quantum Gravity | It is shown that the probability distribution $P(\lambda)$ for the effective
cosmological constant is sharply peaked at $\lambda=0$ in stochastic (or
"fifth-time") stabilized quantum gravity. The effect is similar to the
Baum-Hawking mechanism, except that it comes about due to quantum fluctuations,
rather than as a ze... | 1992-07-09 | 2009-10-22 | [
"hep-th"
] | J. Greensite |
hep-th/9207030 | Vect(N) conformal fields and their exterior derivatives | Conformal fields are a recently discovered class of representations of the
algebra of vector fields in $N$ dimensions. Invariant first-order differential
operators (exterior derivatives) for conformal fields are constructed. | 1992-07-09 | 2007-05-23 | [
"hep-th"
] | T. A. Larsson |
hep-th/9207025 | Singularity analysis in $A_n$ Affine Toda Theories | The leading and the subleading Landau singularities in affine Toda field
theories are examined in some detail. Formulae describing the subleading simple
pole structure of box diagrams are given explicitly. This leads to a new and
nontrivial test of the conjectured exact S-matrices for these theories. We show
that to th... | 1992-07-09 | 2017-02-01 | [
"hep-th"
] | H.W. Braden, H.S. Cho, J.D. Kim, I.G. Koh and R. Sasaki |
hep-th/9207020 | Higher Genus Correlators for the Complex Matrix Model | We describe an iterative scheme which allows us to calculate any multi-loop
correlator for the complex matrix model to any genus using only the first in
the chain of loop equations. The method works for a completely general
potential and the results contain no explicit reference to the couplings. The
genus $g$ contribu... | 1992-07-08 | 2015-06-26 | [
"hep-th"
] | J. Ambjorn, C.F. Kristjansen and Y.M. Makeenko |
hep-th/9207023 | On the Chiral Rings in N=2 and N=4 Superconformal Algebras | We study the chiral rings in N=2 and N=4 superconformal algebras. The chiral
primary states of N=2 superconformal algebras realized over hermitian triple
systems are given. Their coset spaces G/H are hermitian symmetric which can be
compact or non-compact. In the non-compact case, under the requirement of
unitarity of ... | 1992-07-08 | 2014-11-18 | [
"hep-th"
] | Murat Gunaydin |
hep-th/9207019 | W-Algebras, New Rational Models and Completeness of the c = 1
Classification | Two series of W-algebras with two generators are constructed from chiral
vertex operators of a free field representation. If $c = 1 - 24k$, there exists
a W(2,3k) algebra for k in $Z_{+}/2$ and a W(2,8k) algebra for k in $Z_{+}/4$.
All possible lowest-weight representations, their characters and fusion rules
are calcul... | 1992-07-08 | 2009-10-22 | [
"hep-th"
] | Michael Flohr |
hep-th/9207022 | Phase diagram and two-particle structure of the $Z_3$-chiral Potts model | We calculate the low-lying part of the spectrum of the $Z_3$-symmetrical
chiral Potts quantum chain in its self-dual and integrable versions, using
numerical diagonalisation of the hamiltonian for $N \leq 12$ sites and
extrapolation $N \ra \infty$. From the sequences of levels crossing we show
that the massive phases h... | 1992-07-08 | 2007-05-23 | [
"hep-th"
] | G. von Gehlen |
hep-th/9207021 | Polymers and Topological Field Theory: A 2 Loop Computation | Within the Quantum Action Principle framework we show the perturbative
renormalizability of previously proposed topological lagrangian \`a la
Witten-Fujikawa describing polymers, then we perform a 2 loop computation. The
theory turns out to have the same predictive power of De Gennes theory, even
though its running cou... | 1992-07-08 | 2009-10-22 | [
"hep-th"
] | Igor Pesando |
hep-th/9207017 | Bosonization and QCD in Two Dimensions | This review is devoted to the application of bosonization techniques to two
dimensional QCD. We start with a description of the ``abelian bosonization".
The methods of the abelian bosonization are applied to several examples like
the Thirring model, the Schwinger model and QCD$_2$. The failure of this scheme
to handle ... | 1992-07-07 | 2010-11-01 | [
"hep-th",
"hep-ph"
] | Y. Frishman and J.Sonnenschein |
hep-th/9207018 | Quantum Conserved Currents in Supersymmetric Toda Theories | We consider $N=1$ supersymmetric Toda theories which admit a fermionic
untwisted affine extension, i.e. the systems based on the $A(n,n)$, $D(n+1,n)$
and $B(n,n)$ superalgebras. We construct the superspace Miura trasformations
which allow to determine the W-supercurrents of the conformal theories and we
compute their r... | 1992-07-07 | 2009-10-22 | [
"hep-th"
] | Alessandro Gualzetti, Silvia Penati and Daniela Zanon |
hep-th/9207015 | The full set of $c_n$-invariant factorized $S$-matrices | We use the method of the tensor product graph to construct rational (Yangian
invariant) solutions of the Yang-Baxter equation in fundamental representations
of $c_n$ and thence the full set of $c_n$-invariant factorized $S$-matrices.
Brief comments are made on their bootstrap structure and on Belavin's scalar
Yangian c... | 1992-07-06 | 2015-06-26 | [
"hep-th"
] | N.J.MacKay |
hep-th/9207016 | Noncompact Symmetries in String Theory | Noncompact groups, similar to those that appeared in various supergravity
theories in the 1970's, have been turning up in recent studies of string
theory. First it was discovered that moduli spaces of toroidal compactification
are given by noncompact groups modded out by their maximal compact subgroups
and discrete dua... | 1992-07-06 | 2010-11-01 | [
"hep-th"
] | Jnan Maharana and John H. Schwarz |
hep-th/9207014 | A Note on ``Anomalous" Chiral Gauge Theories | We show that, the lattice regularization of chiral gauge theories proposed by
Kaplan, when applied to a (2+1)-dimensional domain wall, produces a
(1+1)-dimensional theory at low energy even if gauge anomaly produced by chiral
fermions does not cancel. But the corresponding statement is not true in higher
dimensions. | 1992-07-05 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | Zhu Yang |
hep-th/9207010 | Free Field Representations and Screening Operators for the $N=4$ Doubly
Extended Superconformal Algebras | We present explicit free field representations for the $N=4$ doubly extended
superconformal algebra, $\tilde{\cal{A}}_{\gamma}$. This algebra generalizes
and contains all previous $N=4$ superconformal algebras. We have found
$\tilde{\cal{A}}_{\gamma}$ to be obtained by hamiltonian reduction of the Lie
superalgebra $D(2... | 1992-07-03 | 2009-10-22 | [
"hep-th"
] | Katsushi Ito, Jens Ole Madsen and Jens Lyng Petersen |
hep-th/9207009 | Free Field Representations of Extended Superconformal Algebras | We study the classical and quantum $G$ extended superconformal algebras from
the hamiltonian reduction of affine Lie superalgebras, with even subalgebras
$G\oplus sl(2)$. At the classical level we obtain generic formulas for the
Poisson bracket structure of the algebra. At the quantum level we get free
field (Feigin-Fu... | 1992-07-03 | 2009-10-22 | [
"hep-th"
] | Katsushi Ito, Jens Ole Madsen and Jens Lyng Petersen |
hep-th/9207008 | Infrared and Ultraviolet Finiteness of Topological BF Theory in Two
Dimensions | The two--dimensional topological BF model is considered in the Landau gauge
in the framework of perturbation theory. Due to the singular behaviour of the
ghost propagator at long distances, a mass term to the ghost fields is
introduced as infrared regulator. Relying on the supersymmetric algebraic
structure of the resu... | 1992-07-03 | 2010-04-06 | [
"hep-th"
] | Alberto Blasi and Nicola Maggiore |
hep-th/9207011 | Non-relativistic Fermions, Coadjoint Orbits of \winf\ and String Field
Theory at $c=1$ | We apply the method of coadjoint orbits of \winf-algebra to the problem of
non-relativistic fermions in one dimension. This leads to a geometric
formulation of the quantum theory in terms of the quantum phase space
distribution of the fermi fluid. The action has an infinite series expansion in
the string coupling, whic... | 1992-07-03 | 2011-04-20 | [
"hep-th"
] | Avinash Dhar, Gautam Mandal and Spenta R. Wadia |
hep-th/9207012 | Classical Hamiltonian Reduction and Superconformal Algebras | The Polyakov's "soldering procedure" which shows how two-dimensional
diffeomorphisms can be obtained from SL(2,R) gauge transformations is discussed
using the free-field representation of SL(2,R) current algebra. Using this
formalism, the relation of Polyakov's method to that of the Hamiltonian
reduction becomes transp... | 1992-07-03 | 2009-10-22 | [
"hep-th"
] | W. A. Sabra |
hep-th/9207007 | A New Solution of the Supersymmetric TJ Model by Means of the Quantum
Inverse Scattering Method | We construct the enveloping fundamental spin model of the t-J hamiltonian
using the Quantum Inverse Scattering Method (QISM), and present all three
possible Algebraic Bethe Ans\"atze. Two of the solutions have been previously
obtained in the framework of Coordinate Space Bethe Ansatz by Sutherland and by
Schlottmann an... | 1992-07-03 | 2007-05-23 | [
"hep-th"
] | Fabian H.L. Essler and Vladimir E. Korepin |
hep-th/9207013 | On the two-boson picture of the KP hierarchy | A two-boson realization of the second hamiltonian structure for the KP
hierarchy has recently appeared in the literature. Furthermore, it has been
claimed that this is also a realization of the hierarchy itself. This is
surprising because it would mean that the dynamics of the KP hierarchy---which
in its usual formulat... | 1992-07-03 | 2009-10-22 | [
"hep-th"
] | J.M. Figueroa-O'Farrill, J. Mas, and E. Ramos |
hep-th/9207006 | Exactly Solvable Models of 2d Dilaton Quantum Gravity | We study canonical quantization of a class of 2d dilaton gravity models,
which contains the model proposed by Callan, Giddings, Harvey and Strominger. A
set of non-canonical phase space variables is found, forming an $SL(2,{\bf R})
\times U(1)$ current algebra, such that the constraints become quadratic in
these new va... | 1992-07-02 | 2009-01-16 | [
"hep-th"
] | A. Mikovic |
hep-th/9207005 | Space-Time Symmetries of Quantized Tensionless Strings | The tensionless limit of the free bosonic string is space-time conformally
symmetric classically. Requiring invariance of the quantum theory in the light
cone gauge tests the reparametrization symmetry needed to fix this gauge. The
full conformal symmetry gives stronger constraints than the Poincar\'e
subalgebra. We fi... | 1992-07-02 | 2016-08-14 | [
"hep-th"
] | J. Isberg, U. Lindstr\"om and B. Sundborg |
hep-th/9207004 | d\leq1\bigcup d\geq25$ and Constrained KP Hierarchy from BRST Invariance
in the $c\neq3$ Topological Algebra | The BRST invariance condition in a highest-weight representation of the
topological ($\equiv$ twisted $N=2$) algebra captures the `invariant' content
of two-dimensional gravity coupled to matter. The standard DDK formulation is
recovered by splitting the topological generators into $c=-26$
reparametrization ghosts+matt... | 1992-07-02 | 2011-04-20 | [
"hep-th"
] | B. Gato-Rivera and A.M.Semikhatov |
hep-th/9207003 | Ground state wave functionals for $1+1$-dimensional fermion field
theories | We use path-\-integral methods to derive the ground state wave functions of a
number of two-\-dimensional fermion field theories and related systems in
one-\-dimensional many body physics. We derive the exact wave function for the
Thirring/Luttinger and Coset fermion models and apply our results to derive the
universal... | 1992-07-01 | 2010-11-01 | [
"hep-th"
] | Eduardo Fradkin, Enrique Moreno and Fidel A.Schaposnik |
hep-th/9206113 | On the Lagrangian Realization of the WZNW Reductions | We develop a phase space path-integral approach for deriving the Lagrangian
realization of the models defined by Hamiltonian reduction of the WZNW theory.
We illustrate the uses of the approach by applying it to the models of
non-Abelian chiral bosons, $W$-algebras and the GKO coset construction, and
show that the well... | 1992-07-01 | 2009-10-22 | [
"hep-th"
] | I. Tsutsui and L. Feher |
hep-th/9207002 | Duality in Non-Trivially Compactified Heterotic Strings | We study the implications of duality symmetry on the analyticity properties
of the partition function as it depends upon the compactification length. In
order to obtain non-trivial compactifications, we give a physical prescription
to get the Helmholtz free energy for any heterotic string supersymmetric or
not. After p... | 1992-07-01 | 2010-11-01 | [
"hep-th"
] | M.A.R. Osorio and M.A. Vazquez-Mozo |
hep-th/9206114 | Sine-Gordon =/= Massive Thirring, and Related Heresies | By viewing the Sine-Gordon and massive Thirring models as perturbed conformal
field theories one sees that they are different (the difference being
observable, for instance, in finite-volume energy levels). The UV limit of the
former (SGM) is a gaussian model, that of the latter (MTM) a so-called {\it
fermionic} gaussi... | 1992-07-01 | 2009-10-22 | [
"hep-th"
] | Timothy R. Klassen and Ezer Melzer |
hep-th/9207001 | All Symmetries of Non-Einsteinian Gravity in $d =2$ | The covariant form of the field equations for two--dimensional $R^2$--gravity
with torsion as well as its Hamiltonian formulation are shown to suggest the
choice of the light--cone gauge. Further a one--to--one correspondence between
the Hamiltonian gauge symmetries and the diffeomorphisms and local Lorentz
transformat... | 1992-07-01 | 2009-10-22 | [
"hep-th"
] | Thomas Strobl |
hep-th/9206112 | G_2^1 Affine Toda Field Theory: A Numerical Test of Exact S-Matrix
results | We present the results of a Monte--Carlo simulation of the $G_2^{(1)}$ Affine
Toda field theory action in two dimensions. We measured the ratio of the masses
of the two fundamental particles as a function of the coupling constant. Our
results strongly support the conjectured duality with the $D_4^{(3)}$ theory,
and are... | 1992-06-30 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | G.Watts and R Weston |
hep-th/9206111 | Target Space Interpretation of New Moduli in 2D String Theory | We analyze the new states that have recently been discovered in 2D string
theory by E. Witten and B. Zwiebach. Since the Liouville direction is
uncompactified, we show that the deformations by the new ghost number two
states generate equivalent classical solutions of the string fields. We argue
that the new ghost numbe... | 1992-06-30 | 2015-06-26 | [
"hep-th"
] | Swapna Mahapatra, Sudipta Mukherji and Anirvan M. Sengupta |
hep-th/9206110 | Higher-Rank Supersymmetric Models and Topological Field Theory | In the first part of this paper we investigate the operator aspect of
higher-rank supersymmetric model which is introduced as a Lie theoretic
extension of the $N=2$ minimal model with the simplest case $su(2)$
corresponding to the $N=2$ minimal model.
In particular we identify the analogs of chirality conditions and ... | 1992-06-30 | 2009-10-22 | [
"hep-th"
] | Toshiya Kawai, Taku Uchino and Sung-Kil Yang |
hep-th/9206109 | Maurer-Cartan forms and equations for two-dimensional
superdiffeomorphisms | We present explicit expressions for the Maurer-Cartan forms of the
superdiffeomorphism group associated to a super Riemann surface. As an
application to superconformal field theory, we use these forms to evaluate the
effective action for the factorized superdiffeomorphism anomaly. | 1992-06-29 | 2009-10-22 | [
"hep-th"
] | Francois Gieres |
hep-th/9206106 | General Solution of the Consistency Equation | We produce the general solution of the Wess-Zumino consistency condition for
gauge theories of the Yang-mills type, for any ghost number and form degree. We
resolve the problem of the cohomological independence of these solutions. In
other words we fully describe the local version of the cohomology of the BRS
operator,... | 1992-06-29 | 2009-10-22 | [
"hep-th"
] | M. Dubois-Violette, M. Henneaux, M. Talon, CM. Viallet |
hep-th/9206108 | Nonlinear Realisations of $w_{1+\infty}$ | The nonlinear scalar-field realisation of $w_{1+\infty}$ symmetry in $d=2$
dimensions is studied in analogy to the nonlinear realisation of $d=4$
conformal symmetry $SO(4,2)$. The $w_{1+\infty}$ realisation is derived from a
coset-space construction in which the divisor group is generated by the
non-negative modes of t... | 1992-06-29 | 2010-04-06 | [
"hep-th"
] | E. Sezgin and K.S. Stelle |
hep-th/9206107 | String Theory, Black Holes, and SL(2,R) Current Algebra | We analyse in detail the $SL(2,R)$ black hole by extending standard
techniques of Kac-Moody current algebra to the non-compact case. We construct
the elements of the ground ring and exhibit W-infinity type structure in the
fusion algebra of the discrete states. As a consequence, we can identify some
of the exactly marg... | 1992-06-29 | 2009-10-22 | [
"hep-th"
] | Shyamoli Chaudhuri and Joseph D. Lykken |
hep-th/9206102 | Non-analyticity in the large N renormalization group | The flow of the action induced by changing $N$ is computed in large $N$
matrix models. It is shown that the change in the action is non-analytic. This
non-analyticity appears at the origin of the space of matrices if the action is
even. | 1992-06-26 | 2009-10-22 | [
"hep-th"
] | Vipul Periwal |
hep-th/9206101 | Self-Dual Supergravity Theories in 2+2 Dimensions | Starting from the new minimal multiplet of supergravity in $2+2$ dimensions,
we construct two types of self-dual supergravity theories. One of them involves
a self-duality condition on the Riemann curvature and implies the equations of
motion following from the Hilbert-Einstein type supergravity action. The other
one i... | 1992-06-26 | 2009-10-22 | [
"hep-th"
] | E. Bergshoeff and E. Sezgin |
hep-th/9206105 | Generalized embedding variables for geometrodynamics and spacetime
diffeomorphisms: Ultralocal coordinate conditions | We investigate the embedding variable approach to geometrodynamics advocated
in work by Isham, Kucha\v{r} and Unruh for a general class of coordinate
conditions that mirror the Isham-Kucha\v{r} Gaussian condition but allow for
arbitrary algebraic complexity. We find that the same essential structure
present in the ultr... | 1992-06-26 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Stephen P. Braham |
hep-th/9206103 | The Sum over Topologies in Three-Dimensional Euclidean Quantum Gravity | In Hawking's Euclidean path integral approach to quantum gravity, the
partition function is computed by summing contributions from all possible
topologies. The behavior such a sum can be estimated in three spacetime
dimensions in the limit of small cosmological constant. The sum over topologies
diverges for either sign... | 1992-06-26 | 2010-04-28 | [
"hep-th"
] | Steven Carlip |
hep-th/9206104 | Topological Soliton Multiplets in 4+1 Dimensional YMCS Theory | We generalize our results${}^1$ on charged topological solitons (CTS) in
$4+1$ dimensional $SU(3)$ Yang-Mills-Chern-Simons (YMCS) theory to $SU(N)$. The
$SU(N)$ multiplet structure of two classes of solitons associated with the
maximal embeddings $SU(2)\times U(1)^{N-2}\subset SU(N)$ and $SO(3)\times
U(1)^{N-3}\subset ... | 1992-06-26 | 2011-02-09 | [
"hep-th"
] | C.S.Aulakh and V.Soni |
hep-th/9206098 | Covariant $W$ Gravity \& its Moduli Space from Gauge Theory | In this paper we study arbitrary $W$ algebras related to embeddings of $sl_2$
in a Lie algebra $g$. We give a simple formula for all $W$ transformations,
which will enable us to construct the covariant action for general $W$ gravity.
It turns out that this covariant action is nothing but a Fourier transform of
the WZW ... | 1992-06-25 | 2009-10-22 | [
"hep-th"
] | Jan de Boer and Jacob Goeree |
hep-th/9206100 | Two Dimensional Quantum Gravity Coupled to Matter | A classical two dimensional theory of gravity which has a number of
interesting features (including a Newtonian limit, black holes and
gravitational collapse) is quantized using conformal field theoretic
techniques. The critical dimension depends upon Newton's constant, permitting
models with $d=4$. The constraint alge... | 1992-06-25 | 2009-10-22 | [
"hep-th"
] | R.B. Mann |
hep-th/9206099 | The D=1 Matrix Model and the Renormalization Group | We compute the critical exponents of $d = 1$ string theory to leading order,
using the renormalization group approach recently suggested by Br\'{e}zin and
Zinn-Justin. | 1992-06-25 | 2009-10-22 | [
"hep-th"
] | J. Alfaro and P.H. Damgaard |
hep-th/9206097 | The regularized BRST Jacobian of pure Yang-Mills theory | The Jacobian for infinitesimal BRST transformations of path integrals for
pure Yang-Mills theory, viewed as a matrix $\unity +\Delta J$ in the space of
Yang-Mills fields and (anti)ghosts, contains off-diagonal terms. Naively, the
trace of $\Delta J$ vanishes, being proportional to the trace of the structure
constants. ... | 1992-06-25 | 2009-10-22 | [
"hep-th"
] | F. De Jonghe, R. Siebelink, W. Troost, S. Vandoren, P. van
Nieuwenhuizen and A. Van Proeyen |
hep-th/9206085 | A New Construction of the Penner Model | The free energy of the Penner model is shown to be closely related to the
integral over the two diagonalizing unitary matrices of a complex rectangular
matrix. | 1992-06-24 | 2015-06-26 | [
"hep-th"
] | M. Srednicki |
hep-th/9206093 | Gauge Theories for Gravity on a Line | Professor M. C. Polivanov and I met only a few times, during my infrequent
visits to the-then Soviet Union in the 1970's and 1980's. His hospitality at
the Moscow Steclov Institute made the trips a pleasure, while the scientific
environment that he provided made them professionally valuable. But it is the
human contact... | 1992-06-24 | 2009-10-22 | [
"hep-th"
] | Roman Jackiw |
hep-th/9206091 | Integrable Superhierarchy of Discretized 2d Supergravity | The hierarchical nonlinear super-differential equations are identified which
describe universal behavior of the discretized model of $2d$ supergravity
recently proposed. This is done by first taking a double scaling limit of the
super Virasoro constraints ( at finite $N$) of the model and by rederiving it
from the $\ti... | 1992-06-24 | 2009-10-22 | [
"hep-th"
] | H. Itoyama |
hep-th/9206086 | $N=\half$ Superstring in Zero Dimension and the Spontaneous Breakdown of
the Supersymmetry | We propose random matrix models which have $N=\half$ supersymmetry in zero
dimension. The supersymmetry breaks down spontaneously. It is shown that the
double scaling limit can be defined in these models and the breakdown of the
supersymmetry remains in the continuum limit. The exact non-trivial partition
functions of ... | 1992-06-24 | 2015-06-26 | [
"hep-th"
] | Shin'ichi Nojiri |
hep-th/9206088 | Loops in the Curvature Matrix Model | Macroscopic loop correlators are investigated in the hermitian one matrix
model with the potential perturbed by the higher order curvature term. In the
phase of smooth surfaces the model is equivalent to the minimal conformal
matter coupled to gravity. The properties of the model in the intermediate
phase are similar t... | 1992-06-24 | 2009-10-22 | [
"hep-th"
] | G.P.Korchemsky |
hep-th/9206094 | Time Travel? | To travel into the past, to observe it, perhaps to influence it and correct
mistakes of one's youth, has been an abiding fantasy of mankind for as long as
we have been aware of a past. Here are described some recent scientific
investigations on this topic. | 1992-06-24 | 2010-11-01 | [
"hep-th"
] | Stanley Deser and Roman Jackiw |
hep-th/9206095 | Induced QCD and Hidden Local ZN Symmetry | We show that a lattice model for induced lattice QCD which was recently
proposed by Kazakov and Migdal has a $Z_N$ gauge symmetry which, in the strong
coupling phase, results in a local confinement where only color singlets are
allowed to propagate along links and all Wilson loops for non-singlets average
to zero. We a... | 1992-06-24 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | Ian I Kogan, Gordon W Semenoff, Nathan Weiss |
hep-th/9206092 | Finite and Infinite Symmetries in (2+1)-Dimensional Field Theory | These days, Franco Iachello is {\it the\/} eminent practitioner applying
classical and finite groups to physics. In this he is following a tradition at
Yale, established by the late Feza Gursey, and succeeding Gursey in the Gibbs
chair; Gursey in turn, had Pauli as a mentor. Iachello's striking achievement
has been to ... | 1992-06-24 | 2009-10-22 | [
"hep-th"
] | Roman Jackiw and So-Young Pi |
hep-th/9206096 | On Two-Current Realization of KP Hierarchy | A simple description of the KP hierarchy and its multi-hamiltonian structure
is given in terms of two Bose currents. A deformation scheme connecting various
W-infinity algebras and relation between two fundamental nonlinear structures
are discussed. Properties of Fa\'a di Bruno polynomials are extensively
explored in t... | 1992-06-24 | 2009-10-22 | [
"hep-th"
] | H.Aratyn, L.A. Ferreira, J.F. Gomes, A.H. Zimerman |
hep-th/9206090 | Polynomial averages in the Kontsevich model | We obtain in closed form averages of polynomials, taken over hermitian
matrices with the Gaussian measure involved in the Kontsevich integral, and
prove a conjecture of Witten enabling one to express analogous averages with
the full (cubic potential) measure, as derivatives of the partition function
with respect to tra... | 1992-06-24 | 2015-06-26 | [
"hep-th",
"math.QA"
] | P. Di Francesco, C. Itzykson, J.-B. Zuber |
hep-th/9206087 | Charged Dilatonic Black Hole and Hawking Radiation in Two Dimensions | We consider Callan, Giddings, Harvey and Strominger's (CGHS) two dimensional
dilatonic gravity with electromagnetic interactions. This model can be also
solved classically. Among the solutions describing static black holes, there
exist extremal solutions which have zero temperatures. In the extremal
solutions, the spac... | 1992-06-24 | 2009-10-22 | [
"hep-th"
] | Shin'ichi Nojiri and Ichiro Oda |
hep-th/9206083 | Fitting the Quark and Lepton Masses in String Theories | The capability of string theories to reproduce at low energy the observed
pattern of quark and lepton masses and mixing angles is examined, focusing the
attention on orbifold constructions, where the magnitude of Yukawa couplings
depends on the values of the deformation parameters which describe the size and
shape of t... | 1992-06-23 | 2009-10-22 | [
"hep-th"
] | J.A. Casas, F. G\'omez and C. Mu\~noz |
hep-th/9206084 | Closed String Field Theory: Quantum Action and the BV Master Equation | The complete quantum theory of covariant closed strings is constructed in
detail. The action is defined by elementary vertices satisfying recursion
relations that give rise to Jacobi-like identities for an infinite chain of
string field products. The genus zero string field algebra is the homotopy Lie
algebra $L_\infty... | 1992-06-23 | 2010-11-01 | [
"hep-th"
] | Barton Zwiebach |
hep-th/9206089 | Relating Weyl and diffeomorphism anomalies on super Riemann surfaces | Starting from the Wess-Zumino action associated to the super Weyl anomaly, we
determine the local counterterm which allows to pass from this anomaly to the
chirally split superdiffeomorphism anomaly (as defined on a compact super
Riemann surface without boundary). The counterterm involves the graded
extension of the Ve... | 1992-06-23 | 2010-04-06 | [
"hep-th"
] | Jean-Pierre Ader, Francois Gieres and Yves Noirot |
hep-th/9206082 | BRS Operators and Covariant Derivatives in Loop Space for P-Branes
Coupled to Yang-Mills | Canonical forms are given for the nilpotent BRS operator $\d$ and the
covariant `loop space' derivative ${\cal D}_{\m}$ for the p-brane fields for
all odd p. The defining characteristic of ${\cal D}_{\m}$ is that it is a
functional derivative operator which generalizes the ordinary functional
derivative and also commut... | 1992-06-22 | 2008-11-26 | [
"hep-th"
] | J. A. Dixon |
hep-th/9206081 | Scaling Exponents in Quantum Gravity near Two Dimensions | We formulate quantum gravity in $2+\epsilon$ dimensions in such a way that
the conformal mode is explicitly separated. The dynamics of the conformal mode
is understood in terms of the oversubtraction due to the one loop counter term.
The renormalization of the gravitational dressed operators is studied and their
anomal... | 1992-06-22 | 2009-10-22 | [
"hep-th"
] | Hikaru Kawai, Yoshihisa Kitazawa and Masao Ninomiya |
hep-th/9206080 | Kleinian Singularities and the Ground Ring of C=1 String Theory | We investigate the nature of the ground ring of c=1 string theory at the
special A-D-E points in the c=1 moduli space associated to discrete subgroups
of SU(2). The chiral ground rings at these points are shown to define the A-D-E
series of singular varieties introduced by Klein. The non-chiral ground rings
relevant to... | 1992-06-21 | 2009-10-22 | [
"hep-th"
] | Debashis Ghoshal, Dileep P. Jatkar and Sunil Mukhi |
hep-th/9206075 | A2 Toda theory in reduced WZNW framework and the representations of the
W algebra | Using the reduced WZNW formulation we analyse the classical $W$ orbit content
of the space of classical solutions of the $A_2$ Toda theory. We define the
quantized Toda field as a periodic primary field of the $W$ algebra satisfying
the quantized equations of motion. We show that this local operator can be
constructed ... | 1992-06-19 | 2011-12-15 | [
"hep-th"
] | Z. Bajnok, L.Palla, G. Takacs |
hep-th/9206078 | A Closed, Expanding Universe in String Theory | We present a conformal field theory -- obtained from a gauged WZW model --
that describes a closed, inhomogeneous expanding and recollapsing universe in
$3+1$ dimensions. A possible violation of cosmic censorship is avoided because
the universe recollapses just when a naked singularity was about to form. The
model has ... | 1992-06-19 | 2010-04-07 | [
"hep-th"
] | Chiara R. Nappi and Edward Witten |
hep-th/9206079 | Stringy Cosmic Strings and Axion Cohomology | The static stationary axially symmetric background ("infinite cosmic string")
of the $D=4$ string theory provided with an axion charge is studied in the
effective theory approach. The most general exact solution is constructed. It
is found that the Kalb-Ramond axion charge, present in the string topology
$R^{3} \times ... | 1992-06-19 | 2009-10-22 | [
"hep-th"
] | Nemanja Kaloper |
hep-th/9206074 | Quantum Field Theory as a Problem of Resummation (Short guide to using
summability methods) | Thesis includes review on the large order behaviour of perturbation theory in
quantum mechanical and field theory models; generalization of the Borel
summability and strong asymptotic conditions to various (including horn-shaped)
regions; discussion of analytic aspects of perturbation theory; examples which
demonstrate... | 1992-06-19 | 2008-02-03 | [
"hep-th",
"cond-mat",
"funct-an",
"hep-lat",
"hep-ph",
"math.FA"
] | Alexander Moroz |
hep-th/9206077 | World-Sheet Duality, Space-Time Foam, and the Quantum Fate of a Stringy
Black Hole | We interpret Minkowski black holes as world-sheet {\it spikes } which are
related by world-sheet { \it duality} to {\it vortices } that correspond to
Euclidean black holes. These world-sheet defects induce defects in the gauge
fields of the corresponding coset Wess-Zumino descriptions of
spherically-symmetric black hol... | 1992-06-19 | 2009-09-11 | [
"hep-th"
] | John Ellis, N.E. Mavromatos and D.V. Nanopoulos |
hep-th/9206076 | Self-Duality in 3+3 Dimensions and the KP Equation | We consider two types of generalized self-duality conditions for Yang-Mills
fields on paracomplex manifolds of arbitrary dimension. We then specialize to
$3+3$ dimensions and show how one can obtain the KP equation from these
self-duality conditions on $SL(2,R)$ valued gauge fields. | 1992-06-19 | 2009-10-22 | [
"hep-th"
] | A. Das, E. Sezgin and Z. Khviengia |
hep-th/9206071 | Quantum Theory of Dilaton Gravity in 1+1 Dimensions | We discuss the quantum theory of 1+1 dimensional dilaton gravity, which is an
interesting model with analogous features to the spherically symmetric
gravitational systems in 3+1 dimensions. The functional measures over the
metrics and the dilaton field are explicitly evaluated and the diffeomorphism
invariance is compl... | 1992-06-18 | 2011-07-19 | [
"hep-th"
] | K. Hamada |
hep-th/9206072 | Wormholes and Supersymmetry | Revisions: reference added to: G. Gilbert, {\sl Nucl.Phys.} {\bf B328}, 159
(1989) | 1992-06-18 | 2009-10-22 | [
"hep-th"
] | J.R. Anglin and R.C. Myers |
hep-th/9206073 | Charged Vortex Dynamics in Ginzburg-Landau Theory of the Fractional
Quantum Hall Effect | We write a Ginzburg-Landau Hamiltonian for a charged order parameter
interacting with a background electromagnetic field in 2+1 dimensions. Using
the method of Lund we derive a collective coordinate action for vortex defects
in the order parameter and demonstrate that the vortices are charged. We
examine the classical ... | 1992-06-18 | 2015-06-26 | [
"hep-th",
"cond-mat"
] | Theodore J. Allen and Andrew J. Bordner |
hep-th/9206069 | Two Dimensional String Theory And Black Holes | This lecture surveys a few loosely related topics, ranging from the scarcity
of quantum field theories -- and the role that this has played, and still
plays, in physics -- to paradoxes involving black holes in soluble two
dimensional string theory and the question of whether naked singularities might
be of even greater... | 1992-06-17 | 2007-05-23 | [
"hep-th"
] | Edward Witten |
hep-th/9206068 | Uniqueness of the Axionic Kerr Black Hole | Under the axisymmetry and under the invarance of simultaneous inversion of
time and azimuthal angle, we show that the axionic Kerr black hole is the ${\it
unique}$ stationary solution of the minimal coupling theory of gravity and the
Kalb-Ramond field, which has a regular event horizon, is asymptotically flat
and has a... | 1992-06-17 | 2007-05-23 | [
"hep-th"
] | Rue-Ron Hsu, Green Huang and Wei-Fu Lin |
hep-th/9206066 | The Boundary Cosmological Constant in Stable 2D Quantum Gravity | We study further the r\^ole of the boundary operator $\O_B$ for macroscopic
loop length in the stable definition of 2D quantum gravity provided by the
$[{\tilde P},Q]=Q$ formulation. The KdV flows are supplemented by an additional
flow with respect to the boundary cosmological constant $\sigma$. We
numerically study th... | 1992-06-17 | 2009-10-22 | [
"hep-th"
] | Clifford V. Johnson, Tim R. Morris and Peter L. White |
hep-th/9206070 | The Endpoint of Hawking Evaporation | The formation and semi-classical evaporation of two-dimensional black holes
is studied in an exactly solvable model. Above a certain threshold energy flux,
collapsing matter forms a singularity inside an apparent horizon. As the black
hole evaporates the apparent horizon recedes and meets the singularity in a
finite pr... | 1992-06-17 | 2009-10-07 | [
"hep-th"
] | J. Russo, L. Susskind and L. Thorlacius |
hep-th/9206067 | String cosmology and dilaton | We discuss some aspects of string cosmology with an emphasis on the role
played by the dilaton.
A cosmological scenario based on the assumption that all spatial dimensions
are periodic so that winding modes play an important role is reviewed. A
possibility of a transition from a `string phase' to the `standard' cosmo... | 1992-06-17 | 2007-05-23 | [
"hep-th"
] | A.A. Tseytlin |
hep-th/9206065 | Thermal Field Theory and Infinite Statistics | We construct a quantum thermal field theory for scalar particles in the case
of infinite statistics. The extension is provided by working out the Fock space
realization of a "quantum algebra", and by identifying the hamiltonian as the
energy operator. We examine the perturbative behavior of this theory and in
particula... | 1992-06-17 | 2010-11-01 | [
"hep-th"
] | T. Altherr and T. Grandou |
hep-th/9206064 | What unitary matrix models are not? | We report results of two investigations of the double-scaling equations for
the unitary matrix models. First, the fixed area partition functions have all
positive coefficients only for the first four critical points. This implies
that the critical points at $k\ge5$ describe non-unitary continuum theories.
Secondly, we ... | 1992-06-16 | 2013-11-13 | [
"hep-th"
] | Rene Lafrance and Robert Myers |
hep-th/9206062 | Nonlinear Sigma Model for String Solitons | It is shown that a renormalizable nonlinear sigma model gives rise to the
effective string theory proposed by Polchinski and Strominger. In the presence
of long string background, the model contains massive world-sheet degrees of
freedom owing to the spontaneous breaking of conformal invariance. | 1992-06-16 | 2009-10-22 | [
"hep-th"
] | M.Natsuume |
hep-th/9206063 | G/G Models and W_N strings | We derive the BRST cohomology of the G/G topological model for the case of
A^{(1)}_{N-1} . It is shown that at level k={p/q}-N the latter describes the
(p,q) W_N minimal model coupled to $W_N$ gravity (plus some extra ``topological
sectors"). | 1992-06-16 | 2009-09-29 | [
"hep-th"
] | O. Aharony, J. Sonnenschein and S. Yankielowicz |
hep-th/9206061 | Extended form method of antifield-BRST formalism for topological quantum
field theories | We present a concise method to construct a BRST invariant action for the
topological quantum field theories in the Batalin-Vilkovisky antifield
formalism. The BV action that is a solution for the master equation is directly
obtained by means of the extended forms that involve all the required ghosts
and antifields. The... | 1992-06-16 | 2010-04-06 | [
"hep-th"
] | Hitoshi Ikemori |
hep-th/9206060 | Unitary Matrix Models and 2D Quantum Gravity (Virasoro constraints
modified) | The KdV and modified KdV integrable hierarchies are shown to be different
descriptions of the same 2D gravitational system -- open-closed string theory.
Non-perturbative solutions of the multi-critical unitary matrix models map to
non-singular solutions of the `renormalisation group' equation for the string
susceptibil... | 1992-06-15 | 2009-10-22 | [
"hep-th"
] | S.Dalley, C.V.Johnson, T.R.Morris, A.Watterstam |
hep-th/9206057 | Colored Vertex Models, Colored IRF Models and Invariants of Trivalent
Colored Graphs | We present formulas for the Clebsch-Gordan coefficients and the Racah
coefficients for the root of unity representations ($N$-dimensional
representations with $q^{2N}=1$) of $U_q(sl(2))$. We discuss colored vertex
models and colored IRF (Interaction Round a Face) models from the color
representations of $U_q(sl(2))$. W... | 1992-06-13 | 2009-10-22 | [
"hep-th"
] | Tetsuo Deguchi and Yasuhiro Akutsu |
hep-th/9206059 | Hidden Kac-Moody symmetry and 2D Quantum Supergravity | We examine the relation between Polyakov's formulation of two dimensional
supergravity and gauged Wess-Zumino-Novikov-Witten models. | 1992-06-13 | 2014-11-18 | [
"hep-th"
] | W.A. Sabra |
hep-th/9206058 | Ashtekar variables, self-dual metrics and w-infinity | The self-duality equations for the Riemann tensor are studied using the
Ashtekar Hamiltonian formulation for general relativity. These equations may be
written as dynamical equations for three divergence free vector fields on a
three dimensional surface in the spacetime. A simplified form of these
equations, describing... | 1992-06-13 | 2010-04-06 | [
"hep-th"
] | Viqar Husain |
hep-th/9206056 | Is Purity Eternal? | Phenomenological and formal restrictions on the evolution of pure into mixed
states are discussed. In particular, it is argued that, if energy is conserved,
loss of purity is incompatible with the weakest possible form of Lorentz
covariance. | 1992-06-12 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Mark Srednicki |
hep-th/9206053 | On Correlation Functions for Non-critical Strings with c<1 but d>1 | We construct a Goulian-Li-type continuation in the number of insertions of
the cosmological constant operator which is no longer restricted to one
dimensional target space. The method is applied to the calculation of the
three-point and a special four-point correlation function. Various aspects of
the emerging analytic... | 1992-06-12 | 2008-11-26 | [
"hep-th"
] | H. Dorn and H.-J. Otto |
hep-th/9206055 | Classical and Quantum Production of Cornucopions At Energies Below
$10^{18}$ GeV | We argue that the paradoxes associated with infinitely degenerate states,
which plague relic particle scenarios for the endpoint of black hole
evaporation, may be absent when the relics are horned particles. Most of our
arguments are based on simple observations about the classical geometry of
extremal dilaton black ho... | 1992-06-12 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | T. Banks and M. O'Loughlin |
hep-th/9206054 | On the amplitudes for non-critical n=2 supuerstrings | We compute correlation functions in $N=2$ non critical superstrings on the
sphere. Our calculations are restrained to the ($s=0$) bulk amplitudes. We show
that the four point function factorizes as a consequence of the non-critical
kinematics, but differently from the $N=0,1$ cases no extra discrete state
appears in th... | 1992-06-12 | 2009-10-22 | [
"hep-th"
] | E. Abdalla, M.C.B. Abdalla, D. Dalmazi |
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