Nonreciprocal Photon Blockade Based on Zeeman Splittings Induced by a Fictitious Magnetic Field

苏欣 ¹金飚兵 ²唐江山 ³夏可宇³

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作者信息

1. College of Engineering and Applied Sciences,National Laboratory of Solid State Microstructures,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210023,China;Research Institute of Superconductor Electronics(RISE)& Key Laboratory of Optoelectronic Devices and Systems with Extreme Performances of MOE,School of Electronic Science and Engineering,Nanjing University,Nanjing 210023,China
2. Research Institute of Superconductor Electronics(RISE)& Key Laboratory of Optoelectronic Devices and Systems with Extreme Performances of MOE,School of Electronic Science and Engineering,Nanjing University,Nanjing 210023,China
3. College of Engineering and Applied Sciences,National Laboratory of Solid State Microstructures,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210023,China
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Abstract

Quantum nonreciprocity,such as nonreciprocal photon blockade,has attracted a great deal of attention due to its unique applications in quantum information processing.Its implementation primarily relies on rotating nonlinear systems,based on the Sagnac effect.Here,we propose an all-optical approach to achieve nonreciprocal photon blockade in an on-chip microring resonator coupled to a V-type Rb atom,which arises from the Zeeman splittings of the atomic hyperfine sublevels induced by the fictitious magnetic field of a circularly polarized control laser.The system manifests single-photon blockade or multi-photon tunneling when driven from opposite directions.This nonreciprocity results from the directional detunings between the countercirculating probe fields and the V-type atom,which does not require the mechanical rotation and facilitates integration.Our work opens up a new route to achieve on-chip integrable quantum nonreciprocity,enabling applications in chiral quantum technologies.

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基金项目

National Natural Science Foundation of China(12305020)

National Natural Science Foundation of China(92365107)

National Key R&D Program of China(2019YFA0308700)

Program for Innovative Talents and Teams in Jiangsu(JSSCTD202138)

China Postdoctoral Science Foundation(2023M731613)

Jiangsu Funding Program for Excellent Postdoctoral Talent(2023ZB708)

出版年

2024

中国物理快报(英文版)

中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDCSCDEI

影响因子：0.515

ISSN：0256-307X

参考文献量81

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