Parity-time symmetry in coherent asymmetric double quantum wells

A coherently prepared asymmetric double semiconductor quantum well (QW) is proposed to realize parity-time (PT) symmetry. By appropriately tuning the laser fields and the pertinent QW parameters, PT-symmetric optical potentials are obtained by three different methods. Such a coherent QW system is re...

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Detalles Bibliográficos
Autores principales: Tian, Si-Cong, Wan, Ren-Gang, Wang, Li-Jie, Shu, Shi-Li, Lu, Huan-Yu, Zhang, Xin, Tong, Cun-Zhu, Xiao, Min, Wang, Li-Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6384875/
https://www.ncbi.nlm.nih.gov/pubmed/30796302
http://dx.doi.org/10.1038/s41598-019-39085-6
Descripción
Sumario:A coherently prepared asymmetric double semiconductor quantum well (QW) is proposed to realize parity-time (PT) symmetry. By appropriately tuning the laser fields and the pertinent QW parameters, PT-symmetric optical potentials are obtained by three different methods. Such a coherent QW system is reconfigurable and controllable, and it can generate new approaches of theoretically and experimentally studying PT-symmetric phenomena.

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