A. Klümper

activity

20022025

most citedIntegral representations for correlation functions of the XXZ chain at finite temperature

191 citations · 615 across the 19 of their papers we have counts for

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Showing 2021Show all

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cond-mat.stat-mech2021★ 9 cited

Analytical results for the low-temperature Drude weight of the XXZ spin chain

Andrew Urichuk, Jesko Sirker, Andreas Klümper

The spin- $1/2$ XXZ chain is an integrable lattice model and parts of its spin current can be protected by local conservation laws for anisotropies $- 1 < Δ < 1$ . In this case, the Drude…

cond-mat.stat-mech2021★ 24 cited

Phantom Bethe roots in the integrable open spin $1/2$ $X X Z$ chain

Xin Zhang, Andreas Klümper, Vladislav Popkov

We investigate special solutions to the Bethe Ansatz equations (BAE) for open integrable $X X Z$ Heisenberg spin chains containing phantom (infinite) Bethe roots. The phantom Bethe r…

Analytical results for the low-temperature Drude weight of the XXZ spin chain

Phantom Bethe roots in the integrable open spin 1/2 XXZ chain

Phantom Bethe roots in the integrable open spin $1/2$ $X X Z$ chain