Squeezing Enhances Quantum Synchronization
It is desirable to observe synchronization of quantum systems in the quantum regime, defined by the low number of excitations and a highly nonclassical steady state of the self-sustained oscillator. Several existing proposals of observing synchronization in the quantum regime suffer from the fact th...
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sg-ntu-dr.10356-887702020-09-26T21:55:16Z Squeezing Enhances Quantum Synchronization Sonar, Sameer Hajdušek, Michal Mukherjee, Manas Fazio, Rosario Vedral, Vlatko Vinjanampathy, Sai Kwek, Leong-Chuan Institute of Advanced Studies Quantum Regimes Quantum Optics It is desirable to observe synchronization of quantum systems in the quantum regime, defined by the low number of excitations and a highly nonclassical steady state of the self-sustained oscillator. Several existing proposals of observing synchronization in the quantum regime suffer from the fact that the noise statistics overwhelm synchronization in this regime. Here, we resolve this issue by driving a self-sustained oscillator with a squeezing Hamiltonian instead of a harmonic drive and analyze this system in the classical and quantum regime. We demonstrate that strong entrainment is possible for small values of squeezing, and in this regime, the states are nonclassical. Furthermore, we show that the quality of synchronization measured by the FWHM of the power spectrum is enhanced with squeezing. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-04-26T07:09:15Z 2019-12-06T17:10:35Z 2018-04-26T07:09:15Z 2019-12-06T17:10:35Z 2018 Journal Article Sonar, S., Hajdušek, M., Mukherjee, M., Fazio, R., Vedral, V., Vinjanampathy, S., et al. (2018). Squeezing Enhances Quantum Synchronization. Physical Review Letters, 120(16), 163601-. 0031-9007 https://hdl.handle.net/10356/88770 http://hdl.handle.net/10220/44730 10.1103/PhysRevLett.120.163601 en Physical Review Letters © 2018 American Physical Society (APS). This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevLett.120.163601]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 5 p. application/pdf |
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Quantum Regimes Quantum Optics Sonar, Sameer Hajdušek, Michal Mukherjee, Manas Fazio, Rosario Vedral, Vlatko Vinjanampathy, Sai Kwek, Leong-Chuan Squeezing Enhances Quantum Synchronization |
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It is desirable to observe synchronization of quantum systems in the quantum regime, defined by the low number of excitations and a highly nonclassical steady state of the self-sustained oscillator. Several existing proposals of observing synchronization in the quantum regime suffer from the fact that the noise statistics overwhelm synchronization in this regime. Here, we resolve this issue by driving a self-sustained oscillator with a squeezing Hamiltonian instead of a harmonic drive and analyze this system in the classical and quantum regime. We demonstrate that strong entrainment is possible for small values of squeezing, and in this regime, the states are nonclassical. Furthermore, we show that the quality of synchronization measured by the FWHM of the power spectrum is enhanced with squeezing. |
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Institute of Advanced Studies |
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Institute of Advanced Studies Sonar, Sameer Hajdušek, Michal Mukherjee, Manas Fazio, Rosario Vedral, Vlatko Vinjanampathy, Sai Kwek, Leong-Chuan |
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Article |
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Sonar, Sameer Hajdušek, Michal Mukherjee, Manas Fazio, Rosario Vedral, Vlatko Vinjanampathy, Sai Kwek, Leong-Chuan |
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Sonar, Sameer |
title |
Squeezing Enhances Quantum Synchronization |
title_short |
Squeezing Enhances Quantum Synchronization |
title_full |
Squeezing Enhances Quantum Synchronization |
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Squeezing Enhances Quantum Synchronization |
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Squeezing Enhances Quantum Synchronization |
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squeezing enhances quantum synchronization |
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2018 |
url |
https://hdl.handle.net/10356/88770 http://hdl.handle.net/10220/44730 |
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