Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity
We propose a realization of the quantum switch for coherent light fields for the fiber-coupled microdisk cavities. We demonstrate by combining numerical and analytical methods that both in strong coupling and bad cavity limits it is possible to change a system's behavior from being fully transp...
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sg-ntu-dr.10356-1419402020-09-26T21:54:36Z Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity Aghamalyan, Davit You, Jia-Bin Chu, Hong-Son Png, Ching Eng Krivitsky, Leonid Kwek, Leong Chuan National Institute of Education MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit, UMI 3654 Institute of Advanced Studies Science::Physics Cavity Quantum Electrodynamics Optical Microcavities We propose a realization of the quantum switch for coherent light fields for the fiber-coupled microdisk cavities. We demonstrate by combining numerical and analytical methods that both in strong coupling and bad cavity limits it is possible to change a system's behavior from being fully transparent to being fully reflective by varying the amplitude of the external control field. We remark that tuning the amplitude of the control field instead of cavity-atom coupling strength, which was suggested by S. Parkins et al., [Phys. Rev. A 90, 053822 (2014)] for two-level atoms and works only in the strong coupling limit, brings more control and tunability over the transmitted and reflected intensities. We also demonstrate the possibility of controlling the statistics of the input coherent field with the control field which opens the venue for obtaining quantum states of light. NRF (Natl Research Foundation, S’pore) ASTAR (Agency for Sci., Tech. and Research, S’pore) Published version 2020-06-12T02:36:34Z 2020-06-12T02:36:34Z 2019 Journal Article Aghamalyan, D., You, J.-B., Chu, H.-S., Png, C. E., Krivitsky, L., & Kwek, L. C. (2019). Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity. Physical Review A, 100(5), 053851-. doi:10.1103/PhysRevA.100.053851 2469-9926 https://hdl.handle.net/10356/141940 10.1103/PhysRevA.100.053851 2-s2.0-85075759350 5 100 en Physical Review A © 2019 American Physical Society. All rights reserved. This paper was published in Physical Review A and is made available with permission of American Physical Society. application/pdf |
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Science::Physics Cavity Quantum Electrodynamics Optical Microcavities Aghamalyan, Davit You, Jia-Bin Chu, Hong-Son Png, Ching Eng Krivitsky, Leonid Kwek, Leong Chuan Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity |
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We propose a realization of the quantum switch for coherent light fields for the fiber-coupled microdisk cavities. We demonstrate by combining numerical and analytical methods that both in strong coupling and bad cavity limits it is possible to change a system's behavior from being fully transparent to being fully reflective by varying the amplitude of the external control field. We remark that tuning the amplitude of the control field instead of cavity-atom coupling strength, which was suggested by S. Parkins et al., [Phys. Rev. A 90, 053822 (2014)] for two-level atoms and works only in the strong coupling limit, brings more control and tunability over the transmitted and reflected intensities. We also demonstrate the possibility of controlling the statistics of the input coherent field with the control field which opens the venue for obtaining quantum states of light. |
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National Institute of Education |
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National Institute of Education Aghamalyan, Davit You, Jia-Bin Chu, Hong-Son Png, Ching Eng Krivitsky, Leonid Kwek, Leong Chuan |
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Article |
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Aghamalyan, Davit You, Jia-Bin Chu, Hong-Son Png, Ching Eng Krivitsky, Leonid Kwek, Leong Chuan |
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Aghamalyan, Davit |
title |
Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity |
title_short |
Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity |
title_full |
Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity |
title_fullStr |
Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity |
title_full_unstemmed |
Tunable quantum switch realized with a single Λ-level atom coupled to the microtoroidal cavity |
title_sort |
tunable quantum switch realized with a single λ-level atom coupled to the microtoroidal cavity |
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2020 |
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https://hdl.handle.net/10356/141940 |
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1681056115048054784 |