arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2408.09302cond-mat.stat-mechmath-phmath.MPquant-ph
收藏

边界驱动积分自旋链稳态的Bethe ansatz对角化

Bethe-ansatz diagonalization of steady state of boundary driven integrable spin chains

Vladislav Popkov, Xin Zhang, Carlo Presilla, Tomaz Prosen

AI总结:

该研究通过Bethe ansatz方法揭示了强边界耗散下XXZ自旋链非平衡稳态谱的特征,发现耗散效应导致熵减少及谱结构的显著改变。

摘要:

我们发现,在具有强``sink和source

英文摘要:

We find that the density operator of non-equilibrium steady state (NESS) of XXZ spin chain with strong ``sink and source" boundary dissipation, can be described in terms of quasiparticles, with renormalized -- dissipatively dressed -- dispersion relation. The spectrum of the NESS is then fully accounted for by Bethe ansatz equations for an associated coherent system. The dissipative dressing generates an extra singularity in the dispersion relation, which strongly modifies the NESS spectrum with respect to the spectrum of the corresponding coherent model. In particular, this leads to a dissipation-assisted entropy reduction, due to the suppression -- in the NESS spectrum -- of plain wave-type Bethe states in favor of Bethe states localized at the boundaries.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑