Zobrazeno 1 - 10
of 9 051
pro vyhledávání: '"Bethe ansatz"'
Surface energy and elementary excitations of the XYZ spin chain with integrable open boundary fields
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-39 (2024)
Abstract We study the thermodynamic limit of the anisotropic XYZ spin chain with non-diagonal integrable open boundary conditions. Although the U(1)-symmetry is broken, by using the new parametrization scheme, we exactly obtain the surface energy and
Externí odkaz:
https://doaj.org/article/fa10b5a39d23438691b14c50c3b722d2
Autor:
Tomáš Procházka, Akimi Watanabe
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-105 (2024)
Abstract We study the higher spin algebras of two-dimensional conformal field theory from the perspective of quantum integrability. Starting from Maulik-Okounkov instanton R-matrix and applying the procedure of algebraic Bethe ansatz, we obtain infin
Externí odkaz:
https://doaj.org/article/3fc921892c8b46759e2a06fb38ce4fd4
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-33 (2024)
Abstract In this paper we evaluate the averages of conserved densities and currents associated to charges of generic spin in (1+1)-dimensional massive integrable Quantum Field Theories perturbed by the irrelevant T T ¯ $$ \textrm{T}\overline{\textrm
Externí odkaz:
https://doaj.org/article/dcb4473b26ce461d95f7ee73efbc56d8
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-32 (2024)
Abstract We study the low-energy properties of the one-dimensional spin-1/2 XXZ chain with time-reversal symmetry-breaking pseudo-scalar chiral interaction and propose a phase diagram for the model. In the integrable case of the isotropic Heisenberg
Externí odkaz:
https://doaj.org/article/4073f3bbfae44b9782cc320b89063a24
Autor:
N. A. Slavnov
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-34 (2024)
Abstract We consider a model of a one-dimensional Bose gas with attraction. We study ground state equal-time correlation functions in this model using the algebraic Bethe ansatz. In cases of strong interaction or/and large-volume systems, we obtain v
Externí odkaz:
https://doaj.org/article/861996ded17147dda4cfa1c8703f5f50
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-43 (2024)
Abstract In this paper we show how the Functional Separation of Variables (FSoV) method can be applied to the problem of computing overlaps with integrable boundary states in integrable systems. We demonstrate our general method on the example of a p
Externí odkaz:
https://doaj.org/article/c79a0b714c18416ca6958582add604d7
Autor:
Tamas Gombor
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-99 (2024)
Abstract We find closed formulas for the overlaps of Bethe eigenstates of gl $$ \mathfrak{gl} $$ (N) symmetric spin chains and integrable boundary states. We derive the general overlap formulas for gl $$ \mathfrak{gl} $$ (M) ⊕ gl $$ \mathfrak{gl} $
Externí odkaz:
https://doaj.org/article/9e3f4676c79b4139af28dca25fcdc2f5