期刊
CHINESE PHYSICS B
卷 31, 期 1, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1674-1056/ac3741
关键词
parity-time symmetry; quantum walks; disorder
资金
- National Natural Science Foundation of China [12025401, U1930402]
We experimentally investigated the impact of static disorder and dynamic disorder on the non-unitary dynamics of parity-time (PT)-symmetric quantum walks. Different environmental influences were simulated, resulting in three different behaviors of quantum walkers: standard ballistic spread, diffusive behavior, and localization, respectively, in a PT-symmetric quantum walk architecture.
We experimentally investigate the impact of static disorder and dynamic disorder on the non-unitary dynamics of parity-time (PT)-symmetric quantum walks. Via temporally alternating photon losses in an interferometric network, we realize the passive PT-symmetric quantum dynamics for single photons. Controllable coin operations allow us to simulate different environmental influences, which result in three different behaviors of quantum walkers: a standard ballistic spread, a diffusive behavior, and a localization, respectively, in a PT-symmetric quantum walk architecture.
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