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  Nonreciprocal and chiral single-photon scattering for giant atoms

Chen, Y.-T., Du, L., Guo, L., Wang, Z., Zhang, Y., Li, Y., et al. (2022). Nonreciprocal and chiral single-photon scattering for giant atoms. arXiv, 2203.00823.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-16C6-E Version Permalink: https://hdl.handle.net/21.11116/0000-000A-16C7-D
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 Creators:
Chen, Yao-Tong1, Author
Du, Lei1, 2, Author
Guo, Lingzhen3, Author
Wang, Zhihai1, Author
Zhang, Yan1, 4, Author
Li, Yong2, Author
Wu, Jin-Hui1, Author
Affiliations:
1School of Physics and Center for Quantum Sciences, Northeast Normal University, Changchun 130024, China, ou_persistent22              
2Beijing Computational Science Research Center, Beijing 100193, China, ou_persistent22              
3Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society, Staudtstraße 2, 91058 Erlangen, DE, ou_2421700              
4National Demonstration Center for Experimental Physics Education, Northeast Normal University, Changchun 130024, China, ou_persistent22              

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 Abstract: In this work, we investigate the nontrivial single-photon scattering properties of giant atoms cou-
pled to waveguides that can be an effective platform for realising nonreciprocal and chiral quantum optics. For the two-level giant-atom setup, we identify the condition for nonreciprocal transmission: the external atomic dissipation is further required other than the breaking of time-reversal symmetry by local coupling phases. Especially, in the non-Markovian regime, unconventional revival peaks periodically appear in the reflection spectrum of such a two-level giant-atom system. To explore more interesting scattering behaviours, we further extend the two-level giant-atom system to ∆-type and
∇-type three-level giant atoms coupled to double waveguides without external atomic dissipation.
We analyse the different physical mechanisms for the nonreciprocal and chiral scattering properties of the ∆-type and ∇-type giant atoms. Our proposed giant-atom structures have potential applications of high-efficient single-photon targeted router and circulator for quantum information precessing.

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Language(s): eng - English
 Dates: 2022-03-03
 Publication Status: Published online
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 Identifiers: arXiv: 2203.00823
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Title: arXiv
Source Genre: Commentary
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Publ. Info: Cornell University Press
Pages: - Volume / Issue: - Sequence Number: 2203.00823 Start / End Page: - Identifier: -