Tunable optical nonreciprocity and a phonon-photon router in an optomechanical system with coupled mechanical and optical modes

2018 ◽  
Vol 97 (2) ◽  
Author(s):  
Guolong Li ◽  
Xiao Xiao ◽  
Yong Li ◽  
Xiaoguang Wang
Author(s):  
Surabhi Yadav ◽  
Aranya B Bhattacherjee

We propose to achieve quantum optical nonreciprocity in a hybrid qubit-optomechanical solid-state system. A two-level system (qubit) is coupled to a mechanically compliant mirror (via the linear Jaynes–Cummings interaction) placed in the middle of a solid-state optical cavity. We show for the first time that the generated optical bistability exhibits a bi-directional photonic switch, making the device a suitable candidate for a duplex communication system. On further exploring the fluctuation dynamics of the system, we found that the proposed device breaks the symmetry between forward and backward propagating optical modes (optical nonreciprocity), which can be controlled by tuning the various system parameters, including the qubit, which emerges as a new handle. The device thus behaves like an optical isolator and hence can store optical data in the acoustic mode, which can be retrieved later.


2019 ◽  
Vol 71 (8) ◽  
pp. 1011 ◽  
Author(s):  
Li-Hua Zhao ◽  
Xian-Li Li ◽  
He-Lin Lu ◽  
Xue-Dong Tian

2020 ◽  
Vol 29 (7) ◽  
pp. 074204
Author(s):  
Yu-Ming Xiao ◽  
Jun-Hao Liu ◽  
Qin Wu ◽  
Ya-Fei Yu ◽  
Zhi-Ming Zhang

Author(s):  
Samanta Anjan ◽  
Mukherjee Kousik ◽  
Jana Paresh Chandra

We analyze optomechanically induced Transparency and asymmetric Fano-line shape Profile in a two-mode cavity system, coupling at weak and strong coupling regimes. The model system consists of one mechanical mode and two optical modes. The transmission shows nonreciprocal behavior. Both the forward transmission and backward reflection for the system are analyzed for both optic-optic and mechanical-optic cavities by considering various system parameters. The output spectra lead to sharp asymmetric Fano-resonance and tunable transparency. Double line-shape profile is observed in the output Spectrum. Our proposal provides a new platform for application in quantum telecommunications and a photonic device like optical Switches.


2020 ◽  
Vol 101 (3) ◽  
Author(s):  
Changchun Zhong ◽  
Xu Han ◽  
Hong X. Tang ◽  
Liang Jiang

2014 ◽  
Vol 12 (04) ◽  
pp. 1450024 ◽  
Author(s):  
Neha Aggarwal ◽  
Kamanasish Debnath ◽  
Sonam Mahajan ◽  
Aranya B. Bhattacherjee ◽  
Man Mohan

We analyze an optomechanical system formed by a mechanical mode and the two optical modes of an optomechanical cavity for the realization of a strongly quantum correlated three-mode system. We show that the steady state of the system shows three possible bipartite continuous variable (CV) entanglements in an experimentally accessible parameter regime, which are robust against temperature. We further show that selective entanglement between the mechanical mode and any of the two optical modes is also possible by the proper choice of the system parameters. Such a two-mode optomechanical system can be used for the realization of CV quantum information interfaces and networks.


2020 ◽  
Vol 37 (5) ◽  
pp. 1550
Author(s):  
Bei Tang ◽  
Bang-Pin Hou ◽  
Xiao-Hui Zhao ◽  
Yi-Bing Qian ◽  
Deng-Gao Lai

2016 ◽  
Vol 30 (20) ◽  
pp. 1650134 ◽  
Author(s):  
J. El Qars ◽  
M. Daoud ◽  
R. Ahl Laamara

The pairwise quantum correlations in a tripartite optomechanical system comprising a mechanical mode and two optical modes are analyzed. The Simon criterion is used as a witness of the separability. Whereas the Gaussian discord is employed to capture the quantumness of correlations. Both entanglement and Gaussian discord are evaluated as functions of the parameters characterizing the environment and the system (temperature, squeezing and optomechanical coupling). We work in the resolved-sideband regime. We show that it is possible to reach three simultaneous bipartite entanglements via the quantum correlations transfer from the squeezed light to the system. While, even without squeezed light, the quantumness of correlations can be captured simultaneously between the three modes for a very wide range of parameters. Specifically, we find that the two optical modes exhibit more quantum correlations in comparison with the entangled mechanical–optical modes. Finally, unlike the two hybrid subsystems, the purely optical one seems more resilient against the environmental destructive effects.


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