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 1410.7262cond-mat.str-el
收藏

受驱动可积系统中的能量流和粒子流

Energy and particle currents in a driven integrable system

Dawid Crivelli, Peter Prelovšek, Marcin Mierzejewski

摘要:

本文研究了一维可积相互作用费米子系统的能量流与粒子流之比($j^E/j^N$)。两个电流都由有限(非零)直流电场驱动。在掺杂绝缘体中,局部守恒量饱和了所谓的Mazur约束的电荷刚度,$j^E/j^N$同意线性响应理论,即使这种协议可能会违反每个电流单独。然而,在金属制度与非饱和Mazur约束,在一个驱动系统中的比率$j^E/j^N$示出为远大于预测的线性响应理论。

英文摘要:

We study the ratio of the energy and particle currents ($j^E/j^N$) in an integrable one dimensional system of interacting fermions. Both currents are driven by a finite (nonzero) dc electric field. In doped insulators, where the local conserved quantities saturate the so called Mazur bound on the charge stiffness, $j^E/j^N$ agrees with the linear--response theory, even though such agreement may be violated for each current alone. However, in the metallic regime with a non-saturated Mazur bound, the ratio $j^E/j^N$ in a driven system is shown to be much larger than predicted by the linear--response theory.

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。

↑