تقرير
Non-Hermitian Stark Many-Body Localization
| العنوان: | Non-Hermitian Stark Many-Body Localization |
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| المؤلفون: | Li, Han-Ze, Yu, Xue-Jia, Zhong, Jian-Xin |
| المصدر: | Phys. Rev. A. 108.043301 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases, Quantum Physics |
| الوصف: | Utilizing exact diagonalization (ED) techniques, we investigate a one-dimensional, non-reciprocal, interacting hard-core boson model under a Stark potential with tail curvature. By employing the non-zero imaginary eigenenergies ratio, half-chain entanglement entropy, and eigenstate instability, we numerically confirm that the critical points of spectral real-complex (RC) transition and many-body localization (MBL) phase transition are not identical, and an examination of the phase diagrams reveals that the spectral RC transition arises before the MBL phase transition, which suggests the existence of a novel non-MBL-driven spectral RC transition. These findings are quite unexpected, and they are entirely different from observations in disorder-driven interacting non-Hermitian systems. This work provides a useful reference for further research on phase transitions in disorder-free interacting non-Hermitian systems. Comment: This version has been accepted by Phys. Rev. A |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.108.043301 |
| URL الوصول: | http://arxiv.org/abs/2305.09387 |
| رقم الأكسشن: | edsarx.2305.09387 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.108.043301 |
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