286 citations · 901 across the 25 of their papers we have counts for
25 papers
A Pedestrian's Way to Baxter's Bethe Ansatz for the Periodic XYZ Chain
Xin Zhang, Andreas Klümper, Vladislav Popkov
A chiral coordinate Bethe ansatz method is developed to study the periodic XYZ chain. We construct a set of chiral vectors with fixed number of kinks. All vectors are factorized an…
Invariant subspaces and explicit Bethe vectors in the integrable open spin $\XYZ$ chain
Xin Zhang, Andreas Klümper, Vladislav Popkov
We derive a criterion under which splitting of all eigenstates of an open $\XYZ$ Hamiltonian with boundary fields into two invariant subspaces, spanned by chiral shock states, occu…
The spin Drude weight of the spin-1/2 chain: An analytic finite size study
Andreas Klümper, Kazumitsu Sakai
The Drude weight for the spin transport of the spin-1/2 Heisenberg chain in the critical regime is evaluated exactly for finite temperatures. We combine the thermodynamic Bet…
Momentum reconstruction and contact of the one-dimensional Bose-Fermi mixture
Ovidiu I. Patu, Andreas Klumper
We investigate the one-dimensional mixture of scalar bosons and spin polarized fermions interacting through a -function potential. Using a thermodynamic description derived by e…
The spin Drude weight of the XXZ chain and generalized hydrodynamics
A. Urichuk, Y. Oez, A. Klümper +1
Based on a generalized free energy we derive exact thermodynamic Bethe ansatz formulas for the expectation value of the spin current, the spin current-charge, charge-charge correla…
Correlation functions of the integrable spin chain
G. A. P. Ribeiro, A. Klümper
We study the correlation functions of invariant spin chains in the thermodynamic limit. We formulate a consistent framework for the computation of short-range correla…