Results 11 to 20 of about 1,488 (262)

Integrable coupled massive Thirring model with field values in a Grassmann algebra

open access: yesJournal 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   +3 more
doaj   +1 more source

Deformation conjecture: deforming lower dimensional integrable systems to higher dimensional ones by using conservation laws

open access: yesJournal 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
doaj   +1 more source

CLASSICALLY INTEGRABLE FIELD THEORIES WITH DEFECTS [PDF]

open access: yesInternational 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.
openaire   +3 more sources

Noncommutative integrable field theories in 2d [PDF]

open access: yesNuclear Physics B, 2003
We study the noncommutative generalization of (euclidean) integrable models in two-dimensions, specifically the sine- and sinh-Gordon and the U(N) principal chiral models. By looking at tree-level amplitudes for the sinh-Gordon model we show that its na\"ıve noncommutative generalization is {\em not} integrable. On the other hand, the addition of extra
Cabrera-Camero, I, Moriconi, M.
openaire   +3 more sources

Integrability of coupled conformal field theories [PDF]

open access: yesNuclear Physics B, 1998
The massive phase of two-layer integrable systems is studied by means of RSOS restrictions of affine Toda theories. A general classification of all possible integrable perturbations of coupled minimal models is pursued by an analysis of the (extended) Dynkin diagrams.
LeClair A   +2 more
openaire   +2 more sources

Integrability of generalised type II defects in affine Toda field theory

open access: yesJournal of High Energy Physics, 2017
The Liouville integrability of the generalised type II defects is investigated. Full integrability is not considered, only the existence of an infinite number of conserved quantities associated with a system containing a defect.
Rebecca Bristow
doaj   +1 more source

The full analytic trans-series in integrable field theories

open access: yesPhysics Letters B, 2023
We analyze a family of generalized energy densities in integrable quantum field theories in the presence of an external field coupled to a conserved charge.
Zoltán Bajnok   +2 more
doaj   +1 more source

Momentum conserving defects in affine Toda field theories

open access: yesJournal of High Energy Physics, 2017
Type II integrable defects with more than one degree of freedom at the defect are investigated. A condition on the form of the Lagrangian for such defects is found which ensures the existence of a conserved momentum in the presence of the defect.
Rebecca Bristow, Peter Bowcock
doaj   +1 more source

The non-chiral intermediate Heisenberg ferromagnet equation

open access: yesJournal of High Energy Physics, 2022
We present and solve a soliton equation which we call the non-chiral intermediate Heisenberg ferromagnet (ncIHF) equation. This equation, which depends on a parameter δ > 0, describes the time evolution of two coupled spin densities propagating on the ...
Bjorn K. Berntson   +2 more
doaj   +1 more source

Defects in the supersymmetric mKdV hierarchy via Bäcklund transformations

open access: yesJournal of High Energy Physics, 2018
The integrability of the N=1 $$ \mathcal{N}=1 $$ supersymmetric modified Korteweg de-Vries (smKdV) hierarchy in the presence of defects is investigated through the construction of its super Bäcklund transformation. The construction of such transformation
A.R. Aguirre   +4 more
doaj   +1 more source

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