100 citations · 278 across the 9 of their papers we have counts for
9 papers
Heisenberg XXX Model with General Boundaries: Eigenvectors from Algebraic Bethe Ansatz
Samuel Belliard, Nicolas Crampé
We propose a generalization of the algebraic Bethe ansatz to obtain the eigenvectors of the Heisenberg spin chain with general boundaries associated to the eigenvalues and the Beth…
Integrable Boundary for Quad-Graph Systems: Three-Dimensional Boundary Consistency
Vincent Caudrelier, Nicolas Crampé, Qi Cheng Zhang
We propose the notion of integrable boundary in the context of discrete integrable systems on quad-graphs. The equation characterizing the boundary must satisfy a compatibility equ…
Matrix Coordinate Bethe Ansatz: Applications to XXZ and ASEP models
N. Crampe, E. Ragoucy, D. Simon
We present the construction of the full set of eigenvectors of the open ASEP and XXZ models with special constraints on the boundaries. The method combines both recent construction…
Generalized coordinate Bethe ansatz for non diagonal boundaries
N. Crampe, E. Ragoucy
We compute the spectrum and the eigenstates of the open XXX model with non-diagonal (triangular) boundary matrices. Since the boundary matrices are not diagonal, the usual coordina…
Eigenvectors of open XXZ and ASEP models for a class of non-diagonal boundary conditions
Nicolas Crampé, Eric Ragoucy, Damien Simon
We present a generalization of the coordinate Bethe ansatz that allows us to solve integrable open XXZ and ASEP models with non-diagonal boundary matrices, provided their parameter…
Coordinate Bethe Ansatz for Spin s XXX Model
Nicolas Crampé, Eric Ragoucy, Ludovic Alonzi
We compute the eigenfunctions and eigenvalues of the periodic integrable spin s XXX model using the coordinate Bethe ansatz. To do so, we compute explicitly the Hamiltonian of the…
Universal Low Temperature Asymptotics of the Correlation Functions of the Heisenberg Chain
Nicolas Crampé, Frank Göhmann, Andreas Klümper
We calculate the low temperature asymptotics of a function that generates the temperature dependence of all static correlation functions of the isotropic Heisenberg chain.
The thermal conductivity of alternating spin chains
G. A. P. Ribeiro, N. Crampe, A. Klümper
We study a class of integrable alternating (S1,S2) quantum spin chains with critical ground state properties. Our main result is the description of the thermal Drude weight of the…
Scattering matrix for a general gl(2) spin chain
S. Belliard, N. Crampe, E. Ragoucy
We study the general L_0-regular gl(2) spin chain, i.e. a chain where the sites {i,i+L_0,i+2L_0,...} carry the same arbitrary representation (spin) of gl(2). The basic example of s…