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arXiv 2408.01059quant-ph
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二次玻色子系统中的玻色子空穴

Bosonic Holes in Quadratic Bosonic Systems

Sun Yat-sen University(中山大学);State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University(中山大学光电信息材料与技术国家重点实验室)

Jia-Ming Hu, Bo Wang, Ze-Liang Xiang

AI总结:

通过引入$\mathcal{CPT}$理论和玻色子粒子-空穴变换,解决了鬼场问题,建立了玻色子空穴的统一理论框架,揭示了厄米与非厄米二次玻色子系统之间的粒子-空穴对偶性。

摘要:

空穴自由度在二次(平均场)系统的精确解中起着核心作用。尽管多种实验已暗示玻色子空穴的存在,但长期受鬼场问题阻碍,缺乏一致且完整的理论。本文通过引入$\mathcal{CPT}$理论和玻色子粒子-空穴(PH)变换,解决了鬼场问题,建立了玻色子空穴的统一理论框架。提出了“费米面”和“费米能级”的玻色子类比。此外,揭示了厄米与非厄米二次玻色子系统(QBSs)之间的PH对偶性。在这两种不同的QBSs中,$\mathcal{C}$宇称被证明标记PH共轭本征空间。基于这一对偶性,我们展示了$\mathcal{APT}$对称哈密顿量中的PH Bogoliubov准粒子,研究了PH纠缠的动态生成,并预测了非厄米QBSs中的厄米PH Aharonov-Bohm干涉。

英文摘要:

Hole degrees of freedom play a central role in the exact solution of quadratic (mean-field) systems. Although a variety of experiments have suggested the existence of bosonic holes, a consistent and complete theory has long been hindered by the ghost problems. Here, we resolve the ghost problem and establish a unified theoretical framework for bosonic holes by introducing the $\mathcal{CPT}$ theory and bosonic particle-hole (PH) transformation. The bosonic analogs of the `Fermi surface' and `Fermi level' are proposed. Furthermore, a PH duality between Hermitian and non-Hermitian quadratic bosonic systems (QBSs) is revealed. In both distinct QBSs, the $\mathcal{C}$-parity is shown to label PH conjugate eigenspaces. Building on this duality, we demonstrate the PH Bogoliubov quasiparticles in $\mathcal{APT}$ symmetric Hamiltonians, investigate the dynamical generation of PH entanglement, and predict Hermitian PH Aharonov-Bohm interference in non-Hermitian QBSs.

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。

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