-
近期, 满足宇称-时间对称性的非厄米系统的研究取得了令人印象深刻的进展, 如物理系统拓扑性质和奇异点处临界性的观测. 宇称-时间对称的非幺正动力学的一个至关重要的方面就是系统与环境之间的信息流动. 本文利用量子态间的可区分性这一物理量, 统一量化了低维与高维宇称-时间对称的非厄米系统和环境之间的信息流动. 数值计算结果表明, 在宇称-时间对称性保持的相区域可以观测到量子态间可区分性的振荡以及完全的信息恢复. 然而在宇称时间对称性破坏的相区域, 信息处于指数衰减的状态. 奇异点处标志着信息流动的可逆与不可逆的临界性, 量子态间的可区分性表现出幂律衰减的行为. 理解非幺正量子动力学中的这些独特的现象为研究开放量子系统提供了重要视角, 并且有助于其在量子信息中的应用.Recently, impressive progress has been made in the study of non-Hermitian systems with parity-time symmetry, such as observations of topological properties of physical systems and criticality at exceptional points. A crucial aspect of parity-time symmetric nonunitary dynamics is the information flow between the system and the environment. In this paper, we use the physical quantity, distinguishability between quantum states, to uniformly quantify the information flow between low-dimensional and high-dimensional parity-time symmetric non-Hermitian systems and environments. The numerical results show that the oscillation of quantum state distinguishability and complete information retrieval and can be obtained in the parity-time-unbroken phase. However, the information decays exponentially in the parity-time-broken phase. The exceptional point marks the criticality between reversibility and irreversibility of information flow, and the distinguishability between quantum states exhibits the behavior of power-law decay. Understanding these unique phenomena in nonunitary quantum dynamics provides an important perspective for the study of open quantum systems and contributes to their application in quantum information.
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] -
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] -
[1] 张慧洁, 贺衎.哈密顿量宇称-时间对称性的刻画. 必威体育下载 , 2024, 73(4): 040302.doi:10.7498/aps.73.20230458 [2] 刘敬鹄, 徐志浩.随机两体耗散诱导的非厄米多体局域化. 必威体育下载 , 2024, 73(7): 077202.doi:10.7498/aps.73.20231987 [3] 蒋宏帆, 林机, 胡贝贝, 张肖.非宇称时间对称耦合器中的非局域孤子. 必威体育下载 , 2023, 72(10): 104205.doi:10.7498/aps.72.20230082 [4] 李竞, 丁海涛, 张丹伟.非厄米哈密顿量中的量子Fisher信息与参数估计. 必威体育下载 , 2023, 72(20): 200601.doi:10.7498/aps.72.20230862 [5] 李家锐, 王梓安, 徐彤彤, 张莲莲, 公卫江.一维 ${\cal {PT}}$ 对称非厄米自旋轨道耦合Su-Schrieffer-Heeger模型的拓扑性质. 必威体育下载 , 2022, 71(17): 177302.doi:10.7498/aps.71.20220796[6] 祝可嘉, 郭志伟, 陈鸿.实验观测非厄米系统奇异点的手性翻转现象. 必威体育下载 , 2022, 71(13): 131101.doi:10.7498/aps.71.20220842 [7] 潘磊.非厄米线性响应理论及其应用. 必威体育下载 , 2022, 71(17): 170305.doi:10.7498/aps.71.20220862 [8] 唐原江, 梁超, 刘永椿.宇称-时间对称与反对称研究进展. 必威体育下载 , 2022, 71(17): 171101.doi:10.7498/aps.71.20221323 [9] 曲登科, 范毅, 薛鹏.. 必威体育下载 , 2022, 0(0): .doi:10.7498/aps.71.20220511 [10] 张毅.时间尺度上非迁移Birkhoff系统的Mei对称性定理. 必威体育下载 , 2021, 70(24): 244501.doi:10.7498/aps.70.20210372 [11] 蔡子.非平衡量子物态中的对称性与时间维度效应. 必威体育下载 , 2021, 70(23): 230310.doi:10.7498/aps.70.20211741 [12] 张高见, 王逸璞.腔光子-自旋波量子耦合系统中各向异性奇异点的实验研究. 必威体育下载 , 2020, 69(4): 047103.doi:10.7498/aps.69.20191632 [13] 李元成, 王小明, 夏丽莉.完整系统Nielsen方程的统一对称性与守恒量. 必威体育下载 , 2010, 59(5): 2935-2938.doi:10.7498/aps.59.2935 [14] 李元成, 夏丽莉, 王小明.具有非Chetaev型非完整约束的机电系统的统一对称性. 必威体育下载 , 2009, 58(10): 6732-6736.doi:10.7498/aps.58.6732 [15] 李元成, 夏丽莉, 赵 伟, 后其宝, 王 静, 荆宏星.机电系统的统一对称性. 必威体育下载 , 2007, 56(9): 5037-5040.doi:10.7498/aps.56.5037 [16] 丁 宁, 方建会, 张鹏玉, 王 鹏.Poincaré-Chetaev方程的统一对称性. 必威体育下载 , 2006, 55(12): 6197-6202.doi:10.7498/aps.55.6197 [17] 许学军, 梅凤翔.准坐标下一般完整系统的统一对称性. 必威体育下载 , 2005, 54(12): 5521-5524.doi:10.7498/aps.54.5521 [18] 茅德强, 李名复, 任尚元.GaP中替代缺陷对的A1对称性深能级波函数. 必威体育下载 , 1984, 33(7): 897-907.doi:10.7498/aps.33.897 [19] 刘辽, 李鉴曾.迹反常与时间对称性反弹宇宙模型. 必威体育下载 , 1982, 31(12): 96-99.doi:10.7498/aps.31.96 [20] 王永丰, 李华钟.关于弱相互作用SU3对称性的一点注记. 必威体育下载 , 1965, 21(11): 1921-1923.doi:10.7498/aps.21.1921
下载:
计量
- 文章访问数:4450
- PDF下载量:318
- 被引次数:0