无配对相互作用费米子链中的强零模式和边缘状态

IF 0.6 4区物理与天体物理 Q4 PHYSICS, APPLIED

Low Temperature Physics Pub Date : 2024-04-01 DOI:10.1063/10.0025297

A. A. Zvyagin

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引用次数: 0

摘要

本文提出了无配对相互作用费米子一维系统的强零模算子。推测强零模与马约拉纳边特征状态有关，结果表明在该系统中存在马约拉纳边特征状态（使用精确的贝特方差研究）。这些结果对于跳跃振幅的符号随机性是稳健的（如果配对振幅不为零，则跳跃振幅和配对振幅的符号随机性相同时也存在类似的结果）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Strong zero modes and edge states in the interacting fermion chain without pairing

The operator of the strong zero mode for the one-dimensional system of interacting fermions without pairing is presented. It is conjectured that the strong zero mode is related to the Majorana edge eigenstate, which is shown to exist (using the exact Bethe ansatz study) in this system. The results are robust with respect to the sign randomness of hopping amplitudes (and if the pairing amplitudes are nonzero, similar results exist for equal sign randomness of hopping and pairing amplitudes).

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来源期刊

Low Temperature Physics 物理-物理：应用

CiteScore

1.20

自引率

25.00%

发文量

138

审稿时长

3 months

期刊介绍： Guided by an international editorial board, Low Temperature Physics (LTP) communicates the results of important experimental and theoretical studies conducted at low temperatures. LTP offers key work in such areas as superconductivity, magnetism, lattice dynamics, quantum liquids and crystals, cryocrystals, low-dimensional and disordered systems, electronic properties of normal metals and alloys, and critical phenomena. The journal publishes original articles on new experimental and theoretical results as well as review articles, brief communications, memoirs, and biographies. Low Temperature Physics, a translation of the copyrighted Journal FIZIKA NIZKIKH TEMPERATUR, is a monthly journal containing English reports of current research in the field of the low temperature physics. The translation began with the 1975 issues. One volume is published annually beginning with the January issues.