期刊
PHYSICAL REVIEW A
卷 103, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.103.053707
关键词
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资金
- NSF of China [11704205, 11704026, 11874099, 21773131, 12074206]
- Natural Science Foundation of Ningbo City [2018A610199]
- K. C. Wong Magna Fund in Ningbo University
This paper proposes a method to obtain key information about the reservoir spectral density of an optomechanical resonator without additional assumptions about the spectral shape. By detecting and analyzing the optical transmission rate of the emitted light, a simple relation between the output light spectrum and the reservoir spectral density is established in the weak optomechanical single-photon coupling regime, providing a straightforward and effective way for reconstructing the spectral density profile in single or even multiple decoherence channels.
To investigate the dynamical behavior of a quantum system embedded in a memory environment, it is crucial to obtain the knowledge of the reservoir spectral density. However, such knowledge is usually based on a priori assumptions about the environment. In this paper, we put forward a method to obtain key information about the reservoir spectral density of an optomechanical resonator without additional assumptions about the spectral shape. This is achieved by detecting and analyzing the optical transmission rate of the emitted light. In the weak optomechanical single-photon coupling regime, we establish a simple relation between the output light spectrum and the reservoir spectral density. This provides a straightforward and effective way for reconstructing the spectral density profile in single or even multiple decoherence channels.
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