Efficient Quantum Simulation of an Anti-P-Pseudo-Hermitian Two-Level System.

Efficient Quantum Simulation of an Anti-P-Pseudo-Hermitian Two-Level System.
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反 P 伪厄米二能级系统的高效量子模拟

DOI:
10.3390/e22080812
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发表时间:
2020-07-24
期刊:
Entropy (Basel, Switzerland)
影响因子:
--
通讯作者:
Li Y
Li Y
中科院分区:
其他
文献类型:
--
作者:
Zheng C;Tian J;Li D;Wen J;Wei S;Li Y

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除了厄米系统,量子模拟已经成为研究非厄米系统的有力工具,如pt对称、反pt对称和伪厄米系统。在这项工作中,我们从理论上研究了不同维希尔伯特空间中反p伪厄米二能级系统的量子模拟。在任意相位下,我们发现6维是构造反p伪厄米二能级子系统的最小值,并且比使用8维有更高的成功概率。我们发现,当系统分别处于反pt对称相或厄米相时,维数可以进一步减少到4维或2维。量子比特-量子比特混合系统和纯量子比特系统都能够实现模拟,在不久的将来可以进行实验实现。
Besides Hermitian systems, quantum simulation has become a strong tool to investigate non-Hermitian systems, such as PT-symmetric, anti-PT-symmetric, and pseudo-Hermitian systems. In this work, we theoretically investigate quantum simulation of an anti-P-pseudo-Hermitian two-level system in different dimensional Hilbert spaces. In an arbitrary phase, we find that six dimensions are the minimum to construct the anti-P-pseudo-Hermitian two-level subsystem, and it has a higher success probability than using eight dimensions. We find that the dimensions can be reduced further to four or two when the system is in the anti-PT-symmetric or Hermitian phase, respectively. Both qubit-qudit hybrid and pure-qubit systems are able to realize the simulation, enabling experimental implementations in the near future.
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影响因子: 8.6
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