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hep-ph1992★ 105 cited

Detailed Stability Analysis of Electroweak Strings

Margaret James, Leandros Perivolaropoulos, Tanmay Vachaspati

We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the re…

hep-th1992★ 32 cited

Low-Temperature Thermodynamics of and su(3)-invariant Spin Chains

Luca Mezincescu, Rafael I. Nepomechie, P. K. Townsend +1

We formulate the thermodynamic Bethe Ansatz (TBA) equations for the closed (periodic boundary conditions) quantum spin chain in an external magnetic field, in the (nonc…

hep-th1992★ 30 cited

On a Solitonic Specialisation for the General Solutions of Some Two-Dimensional Completely Integrable Systems

David I. Olive, Mikhail V. Saveliev, Jonathan W. R. Underwood

Following a prescription of \cite{4} for a solitonic specialization of the general solutions to the (abelian) periodic Toda field theories, we discuss a construction of the soliton…

hep-th1992★ 3 cited

A path-integral approach to polynomial invariants of links

B. Broda

A brief review of a self-contained genuinely three-dimensional monodromy-matrix based non-perturbative covariant path-integral approach to {\it polynomial invariants} of knots and…

hep-th1992★ 65 cited

Star-Triangle Relation for a Three Dimensional Model

V. V. Bazhanov, R. J. Baxter

The solvable -chiral Potts model can be interpreted as a three-dimensional lattice model with local interactions. To within a minor modification of the boundary conditions i…

hep-th1992★ 11 cited

Gauge Conditions for the Constrained-WZNW--Toda Reductions

Jean-Loup Gervais, Lochlainn O'Raifeartaigh, Alexander V. Razumov +1

There is a constrained-WZNW--Toda theory for any simple Lie algebra equipped with an integral gradation. It is explained how the different approaches to these dynamical systems are…

hep-lat1992★ 8 cited

Improved Langevin Methods for Spin Systems

I T Drummond, R R Horgan

We investigate methods for variance reduction and the elimination of systematic error in a Fourier accelerated Langevin scheme for general spin models. We present results for the $…

hep-lat1992★ 18 cited

Non-Relativistic QCD for Heavy Quark Systems

S. Catterall, F. Devlin, I. Drummond +2

We employ a nonrelativistic version of QCD (NRQCD) to study heavy quark-antiquark bound states in the lowest approximation without fine structure. We use gluon configurations on a…

hep-th1992★ 17 cited

Topological Conformal Gravity in Four Dimensions

Malcolm J. Perry, Edward Teo

In this paper, we present a new formulation of topological conformal gravity in four dimensions. Such a theory was first considered by Witten as a possible gravitational counterpar…

hep-th1992★ 2 cited

A Master Equation for Multi-Dimensional Non-Linear Field Theories

Q-Han Park

A master equation ( dimensional non--Abelian current conservation law with mutually commuting current components ) is introduced for multi-dimensional non-linear field theories…

hep-th1992★ 139 cited

Braided Momentum Structure of the q-Poincare Group

S. Majid

The -Poincaré group of \cite{SWW:inh} is shown to have the structure of a semidirect product and coproduct $B\cocross \widetilde{SO_q(1,3)}$ where is a braided-quantum group…

hep-th1992★ 11 cited

The Braided Heisenberg Group

W. K. Baskerville, S. Majid

We compute the braided groups and braided matrices for the solution of the Yang-Baxter equation associated to the quantum Heisenberg group. We also show that a particula…

hep-th1992★ 36 cited

Quantum Group Gauge Theory on Classical Spaces

T. Brzezinski, S. Majid

We study the quantum group gauge theory developed elsewhere in the limit when the base space (spacetime) is a classical space rather than a general quantum space. We show that this…

hep-th1992★ 3 cited

The Quantum Double as Quantum Mechanics

Shahn Majid

We introduce -structures on braided groups and braided matrices. Using this, we show that the quantum double can be viewed as the quantum algebra of observables o…

hep-ph1992★ 3 cited

Model Dependence of Baryon Decay Enhancement by Cosmic Strings

C. J. Fewster, B. S. Kay

Cosmic strings arising from GUTs can catalyse baryon decay processes with strong interaction cross sections. We examine the mechanism by which the cross section is enhanced and fin…

hep-th1992★ 19 cited

$W_{\infty} Algebra in Two-Dimensional Black Hole

T. Eguchi, H. Kanno, S. -K. Yang

We study the coset model of two-dimensional black hole and its relation to the Liouville theory coupled to c=1 matter. We uncover a basic isomorphism in the algebrai…

hep-th1992★ 41 cited

Null vectors of the W_3 algebra

P. Bowcock, G. M. T. Watts

We construct null vectors of a restricted class explicitly in two different forms. The method we use is an extension of that of Bauer et al.~in the Virasoro case. Our results…

hep-th1992★ 82 cited

Cosmic Strings and Chronology Protection

James D. E. Grant

A space consisting of two rapidly moving cosmic strings has recently been constructed by Gott that contains closed timelike curves. The global structure of this space is analysed a…

hep-th1992★ 12 cited

Generalized Semilocal Theories and Higher Hopf Maps

Mark Hindmarsh, Richard Holman, Thomas W. Kephart +1

\def\mon{S^3\stackrel{S^1}{\rightarrow}S^2} \def\inst{S^7\stackrel{S^3}{\rightarrow}S^4} \def\octo{S^{15}\stackrel{S^7}{\rightarrow}S^8} In semilocal theories, the vacuum manifold…

hep-th1992★ 13 cited

BRS and Anti-BRS Symmetry in Topological Yang--Mills Theory

Malcolm J. Perry, Edward Teo

We incorporate both BRS symmetry and anti-BRS symmetry into the quantisation of topological Yang--Mills theory. This refines previous treatments which consider only the BRS symmetr…

hep-th1992★ 91 cited

String vacuum backgrounds with covariantly constant null Killing vector and 2d quantum gravity

A. A. Tseytlin

We consider a sigma model with a - dimensional Minkowski signature target space metric having a covariantly constant null Killing vector. We study solutions of the confo…

cond-mat1992★ 7 cited

Combination Rules, Charge Symmetry, and Hall Effect in Cuprates

A. J. Schofield, J. M. Wheatley

The rule relating the observed Hall coefficient to the spin and charge responses of the uniform doped Mott insulator is derived. It is essential to include the contribution of holo…

hep-th1992★ 24 cited

A Class of Bicovariant Differential Calculi on Hopf Algebras

Tomasz Brzezinski, Shahn Majid

We introduce a large class of bicovariant differential calculi on any quantum group , associated to -invariant elements. For example, the deformed trace element on …

hep-th1992★ 89 cited

Quantum and Braided Linear Algebra

Shahn Majid

Quantum matrices are known for every matrix obeying the Quantum Yang-Baxter Equations. It is also known that these act on `vectors' given by the corresponding Zamalodchi…