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Title: Squeezing Enhances Quantum Synchronization
Authors: Sonar, Sameer
Hajdušek, Michal
Mukherjee, Manas
Fazio, Rosario
Vedral, Vlatko
Vinjanampathy, Sai
Kwek, Leong-Chuan
Keywords: Quantum Regimes
Quantum Optics
Issue Date: 2018
Source: 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-.
Series/Report no.: Physical Review Letters
Abstract: 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.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.120.163601
Rights: © 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: []. 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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