hep-th daily 9701071 -- 9701076 received (over 3523 served) 1876

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received from Wed 15 Jan 97 01:00:01 GMT to Thu 16 Jan 97 01:00:01 GMT
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Paper: hep-th/9701071
From: Ernest Baver <ftb...@wicc.weizmann.ac.il>
Date: Wed, 15 Jan 1997 15:35:00 +0200

Title: Local State Probabilities of Solvable Lattice Models: Relatives of
$A_{n}^{(1)}$ Family
Author: Ernest Baver
Comments: 13 pages, Latex , 1 figure
Report-no: WIS-97/4/Jan.-PH
\\
We present the results for the local state probabilities (LSP) of the
solvable lattice models, constructed around rational conformal field theory
given by WZW model on $SO(3)_{4 R}=SU(2)_{4 R} / Z_{2}$ together with primary
field $\phi_{1}$(symmetric tensor of degree 2). Some conjectures for the LSP
for some higher rank relatives of $A_{n}^{(1)}$ face models are also presented.
\\ (http://xxx.lanl.gov/abs/hep-th/9701071 , 9kb)
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Paper: hep-th/9701072
From: Joao Barcelos Neto <barc...@if.ufrj.br>
Date: Wed, 15 Jan 1997 13:18:18 -0200 (EDT)

Title: BFFT quantization with nonlinear constraints
Authors: J. Barcelos-Neto
Comments: 19 pages, Latex
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We consider the method due to Batalin, Fradkin, Fradkina, and Tyutin (BFFT)
that makes the conversion of second-class constraints into first-class ones for
the case of nonlinear theories. We first present a general analysis of an
attempt to simplify the method, showing the conditions that must be fulfilled
in order to have first-class constraints for nonlinear theories but that are
linear in the auxiliary variables. There are cases where this simplification
cannot be done and the full BFFT method has to be used. However, in the way the
method is formulated, we show with details that it is not practicable to be
done. Finally, we speculate on a solution for these problems.
\\ (http://xxx.lanl.gov/abs/hep-th/9701072 , 12kb)
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Paper: hep-th/9701073
From: FLORIAN SCHECK <SCH...@dipmza.physik.Uni-Mainz.DE>
Date: Wed, 15 Jan 1997 16:24:36 +0100

Title: The Standard model within noncommutative geometry: a comparison of
models
Author: F. Scheck (Johannes Gutenberg-Universitaet, Mainz)
Comments: 14 pages, LaTEX
\\
Algebraic Yang-Mills-Higgs theories based on noncommutative geometry have
brought forth novel extensions of gauge theories with interesting applications
to phenomenology. We sketch the model of Connes and Lott, as well as variants
of it, and the model developed by a Mainz-Marseille group, by comparing them in
a schematic way. The role of fermion masses and mixings is discussed, and the
question of possible parameter relations is briefly touched.
\\ (http://xxx.lanl.gov/abs/hep-th/9701073 , 14kb)
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Paper: hep-th/9701074
From: Jiannis Pachos <pac...@ctpa02.mit.edu>
Date: Wed, 15 Jan 1997 10:48:48 -0500 (EST)

Title: Second Order Calculations of the O(N) sigma-Model Laplacian
Author: Jiannis Pachos (MIT)
Comments: 7 pages, Latex, no figures
Report-no: DTP 96/39
\\
For slowly varying fields on the scale of the lightest mass the logarithm of
the vacuum functional of a massive quantum field theory can be expanded in
terms of local functionals satisfying a form of the Schrodinger equation, the
principal ingredient of which is a regulated functional Laplacian. We extend a
previous work to construct the next to leading order terms of the Laplacian for
the Schrodinger equation that acts on such local functionals. Like the leading
order the next order is completely determined by imposing rotational invariance
in the internal space together with closure of the Poincare algebra.
\\ (http://xxx.lanl.gov/abs/hep-th/9701074 , 8kb)
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Paper: hep-th/9701075
From: Jose Fernandez Barbon <Jose.Ferna...@cern.ch>
Date: Wed, 15 Jan 1997 17:39:48 +0100 (MET)

Title: Fermion Exchange between D-instantons
Author: J.L.F. Barbon (CERN)
Comments: 12 pp. harvmac
Report-no: CERN-TH/96-360
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We define fermionic collective coordinates for type II-B Dirichlet instantons
and discuss some effects of the associated zero modes within the dilute gas
framework. We show that the standard rules for clustering of zero modes in the
dilute limit, and the fermion exchange interactions follow from world-sheet
Ward identities. Fermion exchange is strongly attractive at string scale
distances, which makes the short distance Hagedorn singularity between
instantons and anti-instantons even stronger.
\\ (http://xxx.lanl.gov/abs/hep-th/9701075 , 14kb)
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Paper: hep-th/9701076
From: sav...@gr3801.nrcps.ariadne-t.gr
Date: Wed, 15 Jan 1997 19:00:23 +0300

Title: Quantum gravity with linear action. Intrinsic rigidity of spacetime
Authors: G.K.Savvidy
Comments: 10 pages, Latex, espcrc2.sty
Report-no: NRCPS-HE-97-1
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An earlier proposed theory with linear-gonihedhic action for quantum gravity
is reviewed. One can consider this theory as a "square root" of classical
gravity with a new fundamental constant of dimension one. We demonstrate also,
that the partition function for the discretized version of the Einstein-Hilbert
action found by Regge in 1961 can be represented as a superposition of random
surfaces with Euler character as an action and in the case of linear gravity as
a superposition of three-dimensional manifolds with an action which is
proportional to the total solid angle deficit of these manifolds. This
representation allows to construct the transfer matrix which describes the
propagation of space manifold. We discuss the so called gonihedric principle
which allows to defind a discrete version of high derivative terms in quantum
gravity and to introduce intrinsic rigidity of spacetime. This note is based on
a talk delivered at the II meeting on constrained dynamics and quantum gravity
at Santa Margherita Ligure.
\\ (http://xxx.lanl.gov/abs/hep-th/9701076 , 17kb)
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Paper (*cross-listing*): gr-qc/9701032
From: Renate Loll <lo...@aei-potsdam.mpg.de>
Date: Tue, 14 Jan 1997 21:15:17 +0054 (MET)

Title: Still on the way to quantizing gravity
Author: R. Loll (AEI, Potsdam)
Comments: 15 pages, TeX; Invited talk at the 12th Italian Conference on General
Relativity and Gravitational Physics, Roma, September 23-27, 1996
Report-no: AEI-025
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I review and discuss some recent developments in non-perturbative approaches
to quantum gravity, with an emphasis on discrete formulations, and those coming
from a classical connection description.
\\ (http://xxx.lanl.gov/abs/gr-qc/9701032 , 14kb)
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Paper: hep-th/9604105
replaced with revised version Wed, 15 Jan 1997 19:06:10 +0300 (MSK)

Title: The Non-Critical N=2 String is an sl(2|1) Theory
Author: A M Semikhatov (P N Lebedev Physics Institute)
Comments: LaTeX 2.09, 21p. Now identical to the version published in Nucl Phys
B 478 (1996) 209--234
\\ (http://xxx.lanl.gov/abs/hep-th/9604105 , 26kb)
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Paper: hep-th/9605099
replaced with revised version Wed, 15 Jan 1997 16:33:00 +0300

Title: Chiral Quantization of the WZW $SU(n)$ Model
Authors: L. Caneschi and M. Lysiansky
Comments: 35 pages, latex, no figures, corrections in the chiral decomposition
of the vertex operators in the WZW model are introduced
\\ (http://xxx.lanl.gov/abs/hep-th/9605099 , 19kb)
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Paper: hep-th/9609006
replaced with revised version Wed, 15 Jan 1997 17:47:46 +0500

Title: Understanding the area proposal for extremal black hole entropy
Authors: A. Ghosh and P. Mitra
Comments: LaTeX, 6 pages; expanded version to appear in Phys. Rev. Letters
Report-no: SINP/TNP/96-14
\\ (http://xxx.lanl.gov/abs/hep-th/9609006 , 5kb)
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Paper: hep-th/9610043
replaced with revised version Wed, 15 Jan 1997 14:16:31 -0500

Title: M Theory As A Matrix Model: A Conjecture
Authors: T. Banks, W. Fischler, S.H. Shenker, L. Susskind
Comments: Typo and tex error corrected. 41 pages, harvmac
Report-no: RU-96-95, SU-ITP-96-12,UTTG-13-96
\\ (http://xxx.lanl.gov/abs/hep-th/9610043 , 35kb)
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Paper: hep-th/9612157
replaced with revised version Wed, 15 Jan 1997 13:53:10 -0500

Title: Branes from Matrices
Authors: Tom Banks, Nathan Seiberg and Stephen Shenker
Comments: 17 pages. A number of new conceptual issues added. Some misprints
corrected
Report-no: RU-96-117
\\ (http://xxx.lanl.gov/abs/hep-th/9612157 , 17kb)
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Paper: hep-th/9612187
replaced with revised version Wed, 15 Jan 1997 09:59:19 -0500 (EST)

Title: A Possible Solution to the Strong CP Problem with an Axial Vector Gauge
Boson
Authors: Paul Federbush ( Univ. of Mich. )
Comments: Minor correction, 9 pages, LaTeX
\\ (http://xxx.lanl.gov/abs/hep-th/9612187 , 5kb)
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Paper: hep-th/9612251
replaced with revised version Wed, 15 Jan 1997 12:00:42 GMT

Title: D-brane Configurations and Nicolai Map in Supersymmetric Yang-Mills
Theory
Authors: I.I. Kogan, G.W. Semenoff and R.J. Szabo
Comments: 11 pages LaTeX; Clarifying comments and additional references added
Report-no: OUTP-96-74P
\\ (http://xxx.lanl.gov/abs/hep-th/9612251 , 12kb)
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Paper: hep-th/9701005
replaced with revised version Thu, 16 Jan 1997 07:46:50 +0900 (JST)

Title: Spontaneous Collapse of Supersymmetry
Authors: Detlev Buchholz and Izumi Ojima
Comments: 22 pages, amslatex, minor changes in text, two references added
\\ (http://xxx.lanl.gov/abs/hep-th/9701005 , 16kb)
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Paper: hep-th/9701067
replaced with revised version Wed, 15 Jan 1997 12:08:11 +0300 (MEST)

Title: Higgs field as the gauge field corresponding to parity in the usual
space-time
Authors: Recai Erdem
Comments: 14 pages, latex, no figures
\\ (http://xxx.lanl.gov/abs/hep-th/9701067 , 7kb)
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