Results 11 to 20 of about 48,145 (341)

INTRODUCTION TO YANGIAN SYMMETRY IN INTEGRABLE FIELD THEORY [PDF]

International Journal of Modern Physics A, 2005
An introduction to Yangians and their representations, to Yangian symmetry in 1+1 D integrable (bulk) field theory, and to the effect of a boundary on this symmetry.
N.J. MacKay
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The Intrinsic Coupling in Integrable Quantum Field Theories [PDF]

Nuclear Physics B, 2000
The intrinsic 4-point coupling, defined in terms of a truncated 4-point function at zero momentum, provides a well-established measure for the interaction strength of a QFT.
A. Patrascioiu, Babelon, Babujian, Baker, Balog, Balog, Balog, Berg, Butera, Campostrini, Campostrini, Campostrini, Campostrini, Delfino, E. Seiler, F. Niedermayer, Falcioni, Glimm, Hasenbusch, Hasenfratz, Hasenfratz, J. Balog, Karowski, Karowski, Kim, Kim, Kosterlitz, Le Guillou, Lüscher, Lüscher, M. Niedermaier, McCoy, Newman, Niedermaier, Niedermaier, P. Weisz, Pelissetto, Prudnikov, Sato, Smirnov, Woo, Wu, Zamolodchikov, Zamolodchikov, Zinn-Justin   +44 more
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Integrable Quantum Field Theories with Unstable Particles [PDF]

Physics Letters B, 1999
A new family of S-matrix theories with resonance poles is constructed and conjectured to correspond to the Homogeneous sine-Gordon theories associated with simply laced compact Lie groups, where some of the resonance poles can be traced to the presence ...
Braden, Brazhnikov, C.R. Fernández-Pousa, Dorey, Fernández-Pousa, Fernández-Pousa, Fernández-Pousa, J.Luis Miramontes, Köberle, Miramontes, Miramontes, Takács   +11 more
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Discreteness and integrality in Conformal Field Theory [PDF]

Journal of High Energy Physics, 2021
Abstract Various observables in compact CFTs are required to obey positivity, discreteness, and integrality. Positivity forms the crux of the conformal bootstrap, but understanding of the abstract implications of discreteness and integrality for the space of CFTs is lacking.
Kaidi, Justin, Perlmutter, Eric
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TOPOLOGICAL FIELD THEORIES AND THE PERIOD INTEGRALS [PDF]

Modern Physics Letters A, 1993
We discuss topological Landau-Ginzburg theories coupled to two-dimensional topological gravity. We point out that the basic recursion relations for correlation functions of the two-dimensional gravity have exactly the same form as the Gauss-Manin differential equations for the period integrals of superpotentials.
Eguchi, Tohru, Yamada, Yasuhiko, Yang, Sung-Kil   +2 more
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Null-Vectors in Integrable Field Theory [PDF]

Communications in Mathematical Physics, 1997
The form factor bootstrap approach allows to construct the space of local fields in the massive restricted sine-Gordon model. This space has to be isomorphic to that of the corresponding minimal model of conformal field theory. We describe the subspaces which correspond to the Verma modules of primary fields in terms of the commutative algebra of local
Babelon, O., Bernard, Denis, Smirnov, F.A.   +2 more
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T T ¯ $$ T\overline{T} $$ -deformation and long range spin chains

Journal of High Energy Physics, 2020
We point out that two classes of deformations of integrable models, developed completely independently, have deep connections and share the same algebraic origin. One class includes the T T ¯ $$ T\overline{T} $$ -deformation of 1+1 dimensional integrable
Balázs Pozsgay, Yunfeng Jiang, Gábor Takács   +2 more
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Integrable coupled massive Thirring model with field values in a Grassmann algebra

Journal of High Energy Physics, 2023
A coupled massive Thirring model of two interacting Dirac spinors in 1 + 1 dimensions with fields taking values in a Grassmann algebra is introduced, which is closely related to a SU(1) version of the Grassmannian Thirring model also introduced in this ...
B. Basu-Mallick, F. Finkel, A. González-López, D. Sinha   +3 more
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Deformation conjecture: deforming lower dimensional integrable systems to higher dimensional ones by using conservation laws

Journal of High Energy Physics, 2023
Utilizing some conservation laws of (1+1)-dimensional integrable local evolution systems, it is conjectured that higher dimensional integrable equations may be regularly constructed by a deformation algorithm.
S. Y. Lou, Xia-zhi Hao, Man Jia
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CLASSICALLY INTEGRABLE FIELD THEORIES WITH DEFECTS [PDF]

International Journal of Modern Physics A, 2004
Some ideas and remarks are presented concerning a possible Lagrangian approach to the study of internal boundary conditions relating integrable fields at the junction of two domains. The main example given in the article concerns single real scalar fields in each domain and it is found that these may be free, of Liouville type, or of sinh-Gordon type.
Bowcock, P., Corrigan, E., Zambon, C.
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