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We investigate the dynamics of an optomechanical system where a cavity with a movable mirror involves a degenerate optical parametric amplifier and is driven by a periodically modulated laser field. Our results show that the cooperation…

Quantum Physics · Physics 2018-08-15 Chang-Sheng Hu , Zhen-Biao Yang , Huaizhi Wu , Yong Li , Shi-Biao Zheng

The realization of the strong coupling regime is requisite for implementing quantum information tasks. Here, a method for enhancing the atom-field coupling in highly dissipative coupled cavities is proposed. By introducing parametric…

Quantum Physics · Physics 2019-08-22 Yan Wang , Jin-Lei Wu , Jie Song , Yong-Yuan Jiang , Zi-Jing Zhang , Yan Xia

Squeezed states of light are essential for emerging quantum technology in metrology and information processing. Chip-integrated photonics offers a route to scalable and efficient squeezed light generation, however, parasitic nonlinear…

Optics · Physics 2025-02-25 Alexander E. Ulanov , Bastian Ruhnke , Thibault Wildi , Tobias Herr

Squeezed states are a primary resource for continuous-variable (CV) quantum information processing. To implement CV protocols in a scalable and robust way, it is desirable to generate and manipulate squeezed states using an integrated…

Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces. Here we give a theoretical study of a hybrid atom-optomechanical system in which the…

Quantum Physics · Physics 2015-12-22 Dong-Yang Wang , Cheng-Hua Bai , Hong-Fu Wang , Ai-Dong Zhu , Shou Zhang

The squeezing dynamics of a damped harmonic oscillator are studied for different types of environment without making the Markovian approximation. The squeezing dynamics of a coherent state depend on the reservoir spectrum in a unique way…

Quantum Physics · Physics 2010-11-03 J. Paavola

Isolation of a system from its environment is often desirable, from precision measurements to control of individual quantum systems; however, dissipation can also be a useful resource. Remarkably, engineered dissipation enables the…

Quantum Physics · Physics 2017-08-07 L. D. Tóth , N. R. Bernier , A. Nunnenkamp , A. K. Feofanov , T. J. Kippenberg

We determine the theoretical limits to squeezing-enhanced measurement sensitivity of mechanical motion in a cavity optomechanical system. The motion of a mechanical resonator is transduced onto quadrature fluctuations of a cavity optical…

Quantum Physics · Physics 2016-11-30 Hugo Kerdoncuff , Ulrich B. Hoff , Glen I. Harris , Warwick P. Bowen , Ulrik L. Andersen

We demonstrate the generation of broad-band continuous-wave optical squeezing down to 200Hz using a below threshold optical parametric oscillator (OPO). The squeezed state phase was controlled using a noise locking technique. We show that…

Quantum Physics · Physics 2009-11-10 K. McKenzie , N. Grosse , W. P. Bowen , S. E. Whitcomb , M. B. Gray , D. E. McClelland , P. K. Lam

We propose a scheme of an optomechanical system that optimizes entanglement in nanomechanical resonators through quantum state transfer of intracavity squeezing and squeezed reservoir field sources assisted by radiation pressure. The system…

The preparation of mechanical quadrature-squeezed states holds significant importance in cavity optomechanics because the squeezed states have extensive applications in understanding fundamental quantum mechanics and exploiting modern…

Quantum Physics · Physics 2024-08-27 Yu-Hong Liu , Jie-Qiao Liao

Frequency dependent squeezing is the main upgrade for achieving broadband quantum noise reduction in upcoming observation runs of gravitational wave detectors. The proper frequency dependence of the squeezed quadrature is obtained by…

We consider a semiconductor quantum well in a microcavity driven by coherent light and coupled to a squeezed vacuum reservoir. By systematically solving the pertinent quantum Langevin equations in the strong coupling and low excitation…

Quantum Physics · Physics 2011-09-21 Eyob A. Sete , Sumanta Das , H. Eleuch

We consider the thermodynamic properties of the squeezed vacuum state of a frequency--modulated quantum harmonic oscillator. We analytically relate the squeezing parameter to the irreversible work and the degree of nonadiabaticity of the…

Quantum Physics · Physics 2008-11-19 Fernando Galve , Eric Lutz

A system of ${N_{osc}}$ charged oscillators interacting with the electromagnetic field, spatially confined in a 3D lattice of sub-wavelength dimension, can condense into a superradiant coherent state if appropriate density and frequency…

General Physics · Physics 2023-10-24 L. Gamberale , G. Modanese

We study an optomechanical system for the purpose of generating a nonclassical mechanical state when a mechanical oscillator is quadratically coupled to a single-mode cavity field driven by a squeezed optical field. The system corresponds…

Quantum Physics · Physics 2018-10-17 Jae Hoon Lee , Junho Suh , Hyojun Seok

We study the interaction of a nearly resonant linearly polarized laser beam with a cloud of cold cesium atoms in a high finesse optical cavity. We show theoretically and experimentally that the cross-Kerr effect due to the saturation of the…

Quantum vacuum fluctuations fundamentally limit the precision of optical measurements, such as those in gravitational-wave detectors. Injection of conventional squeezed vacuum can be used to reduce quantum noise in the readout quadrature,…

Instrumentation and Methods for Astrophysics · Physics 2020-11-16 Kentaro Komori , Dhruva Ganapathy , Chris Whittle , Lee McCuller , Lisa Barsotti , Nergis Mavalvala , Matthew Evans

As a result of the quantum, wave-like nature of the physical world, a harmonic oscillator can never be completely at rest. Even in the quantum ground state, its position will always have fluctuations, called the zero-point motion. Although…

Quantum Physics · Physics 2016-01-21 E. E. Wollman , C. U. Lei , A. J. Weinstein , J. Suh , A. Kronwald , F. Marquardt , A. A. Clerk , K. C. Schwab

We theoretically describe the quantum properties of a large Fresnel number degenerate optical parametric oscillator with spherical mirrors that is pumped by a Gaussian beam. The resonator is tuned so that the resonance frequency of a given…

Quantum Physics · Physics 2009-10-13 Carlos Navarrete-Benlloch , Germán J. de Valcárcel , Eugenio Roldán
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