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The dynamics of a system composed of two coupled optical cavities, each containing a single two-level atom, is studied over a wide range of detuning and coupling values. A description of the field in terms of delocalized modes reveals that…

Quantum Physics · Physics 2009-11-13 C. D. Ogden , E. K. Irish , M. S. Kim

Quantum networking based on optical Gaussian states, although promising in terms of scalability, is hindered by the fact that their entanglement cannot be distilled via Gaussian operations. We show that optomechanics, integrable (on-chip)…

Quantum Physics · Physics 2019-10-23 Victor Montenegro , Alessandro Ferraro , Sougato Bose

We experimentally and theoretically investigate mechanical nanooscillators coupled to the light in an optical ring resonator made of dielectric mirrors. We identify an optomechanical damping mechanism that is fundamentally different to the…

We demonstrate the control of entanglement in a hybrid optomechanical system comprising an optical cavity with a mechanical end-mirror and an intracavity Bose-Einstein condensate (BEC). Pulsed laser light (tuned within realistic…

Quantum Physics · Physics 2015-03-20 B. Rogers , M. Paternostro , G. M. Palma , G. De Chiara

Atomic collisions are included in an interacting system of optical fields and trapped atoms allowing field amplification. We study the effects of collisions on the system stability. Also a study of the degree of entanglement between atomic…

Quantum Physics · Physics 2008-06-17 V. V. França , G. A. Prataviera

In a two-membrane cavity optomechanical setup, two semi-transparent membranes placed within an optical Fabry-P\'erot cavity yield a nontrivial dependence of the frequency of a mode of the optical cavity on the membranes' positions, which is…

We propose an optomechanical dissipation engineering scheme by introducing an ancillary mechanical mode with a large decay rate to control the density of states of the optical mode. The effective linewidth of the optical mode can be reduced…

Quantum Physics · Physics 2020-07-01 Yan-Lei Zhang , Chuan-Sheng Yang , Zhen Shen , Chun-Hua Dong , Guang-Can Guo , Chang-Ling Zou , Xu-Bo Zou

We propose a scheme to produce continuous variable entanglement between phase-quadrature amplitudes of two light modes in an optomechanical system. For proper driving power and detuning, the entanglement is insensitive with bath temperature…

Quantum Physics · Physics 2009-06-09 Zhang-qi Yin , Y. J. Han

We study the optomechanical interaction of a Bose-Einstein condensate with a single longitudinal mode of an ultra-high finesse standing wave optical resonator. As a unique feature the resonator combines three extreme regimes, previously not…

Quantum Gases · Physics 2019-03-29 H Keßler , J Klinder , M Wolke , A Hemmerich

We explore the physics of optomechanical systems in which an optical cavity mode is coupled parametrically to the square of the position of a mechanical oscillator. We derive an effective master equation describing two-phonon cooling of the…

Mesoscale and Nanoscale Physics · Physics 2010-09-01 A. Nunnenkamp , K. Borkje , J. G. E. Harris , S. M. Girvin

Optomechanical systems are a promising candidate for the implementation of quantum interfaces for storing and redistributing quantum information. Here we focus on the case of a high-finesse optical cavity with a thin vibrating…

Quantum Physics · Physics 2015-05-20 M. Karuza , C. Biancofiore , M. Galassi , R. Natali , G. Di Giuseppe , P. Tombesi , D. Vitali

A conventional optomechanical system is composed of a mechanical mode and an optical mode interacting through a linear optomechanical coupling (LOC). We study how the presence of quadratic optomechanical coupling (QOC) in the conventional…

Quantum Physics · Physics 2015-09-29 Satya Sainadh U , M. Anil Kumar

We address the dynamical bipartite entanglement in an opto-electro-mechanical system that involves a three-level atom. The system consists of a degenerate three-level atom, a mechanical resonator, an optical cavity, and a microwave cavity.…

We propose to create and detect opto-mechanical entanglement by storing one component of an entangled state of light in a mechanical resonator and then retrieving it. Using micro-macro entanglement of light as recently demonstrated…

Quantum Physics · Physics 2015-06-18 R. Ghobadi , S. Kumar , B. Pepper , D. Bouwmeester , A. I. Lvovsky , C. Simon

The system of an atom couples to two distinct optical cavities with phase decoherence is studied by making use of a dynamical algebraic method. We adopt the concurrence to characterize the entanglement between atom and cavities or between…

Quantum Physics · Physics 2015-06-26 Jing-Bo Xu , Shang-Bin Li

We consider a hybrid optomechanical system which is composed of the atomic ensemble and a standard optomechanical cavity driven by the periodically modulated external laser field. We investigate the asymptotic behaviors of Heisenberg…

Quantum Physics · Physics 2019-07-24 Cheng-Hua Bai , Dong-Yang Wang , Shou Zhang , Shutian Liu , Hong-Fu Wang

The search for experimental demonstrations of the quantum behavior of macroscopic mechanical resonators is a fastly growing field of investigation and recent results suggest that the generation of quantum states of resonators with a mass at…

Quantum Physics · Physics 2009-09-24 C. Genes , A. Mari , D. Vitali , P. Tombesi

We show how to entangle the motion of optically levitated nanoparticles in distant optical tweezers. The scheme consists in coupling the inelastically scattered light of each particle into transmission lines and directing it towards the…

We study an optomechhanical device supporting at least three optical modes in the infrared telecommunication band and three mechanical vibration modes. We model the coherent driving of each optical mode, independently of each other, to…

We theoretically study an optomechanical system, which consists of a two-sided cavity and a mechanical membrane that is placed outside of it. The membrane is positioned close to one of its mirrors, and the cavity is coupled to the external…

Quantum Physics · Physics 2021-06-09 A. K. Tagantsev , E. S. Polzik