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We propose a simple method to generate quantum entanglement between two macroscopic mechanical resonators in a two-cavity optomechanical system. This entanglement is induced by the radiation pressure of a single photon hopping between the…

Quantum Physics · Physics 2014-01-14 Jie-Qiao Liao , Qin-Qin Wu , Franco Nori

We study multi-partite entanglement, the generation of EPR states and quantum steering in a three-mode optomechanical system composed of an atomic ensemble located inside a single-mode cavity with a movable mirror. The cavity mode is driven…

Quantum Physics · Physics 2014-03-10 Qiongyi He , Zbigniew Ficek

We propose a scheme for the creation of robust entanglement between a movable mirror and atomic ensemble at the macroscopic level in coupled optomechanical system. In experimentally accessible parameter regimes, we show that critical…

Quantum Physics · Physics 2016-02-03 Cheng-Hua Bai , Dong-Yang Wang , Hong-Fu Wang , Ai-Dong Zhu , Shou Zhang

We quantify the stationary correlations between the optical mode and the relative mechanical mode of a ring cavity composed of a fixed mirror and two movable ones in a triangular design. The bipartite covariance matrix, is used to evaluate…

Quantum Physics · Physics 2023-07-19 Oumayma El Bir , Morad El Baz

We demonstrate the steady-state entanglement of two two-level atoms inside a pumped cavity with photon leakage through a nonlinear mirror and through spontaneous decay, and show that the entanglement is enhanced by the presence of a…

Quantum Physics · Physics 2009-12-22 Hideomi Nihira , C. R. Stroud

We theoretically investigate the possibility to generate non-classical states of optical and mechanical modes of optical cavities, distant from each other. A setup comprised of two identical cavities, each with one fixed and one movable…

Quantum Physics · Physics 2013-05-30 Chaitanya Joshi , Jonas Larson , Mats Jonson , Erika Andersson , Patrik Ohberg

We show that the optomechanical coupling between an optical cavity mode and the two movable cavity end mirrors is able to entangle two different macroscopic oscillation modes of the mirrors. This continuous variable entanglement is…

Quantum Physics · Physics 2009-11-07 Stefano Mancini , David Vitali , Vittorio Giovannetti , Paolo Tombesi

We show how stationary entanglement between an optical cavity field mode and a macroscopic vibrating mirror can be generated by means of radiation pressure. We also show how the generated optomechanical entanglement can be quantified and we…

Quantum Physics · Physics 2007-05-23 D. Vitali , S. Gigan , A. Ferreira , H. R. Boehm , P. Tombesi , A. Guerreiro , V. Vedral , A. Zeilinger , M. Aspelmeyer

We study quantum effects in hybrid atomic optomechanics in a system comprising a cloud of atoms and a mobile mirror mediated by a single-mode cavity. Tripartite nonlocality is observed in the atom-light-mirror system, as demonstrated by the…

Quantum Physics · Physics 2015-01-15 Jing Zhang , Tiancai Zhang , André Xuereb , David Vitali , Jie Li

We study entanglement of the cavity modes in a double-cavity optomechanical system in strong-coupling regime. The system consists of two optomechanical systems coupled by a single photon hopping between them. With the radiation pressure of…

Optics · Physics 2018-08-29 Ding-Shan Liu , Pu-Tong Wang , Ming Jin , Miao Yin

Optical cavities are one of the best ways to increase atom-light coupling and will be a key ingredient for future quantum technologies that rely on light-matter interfaces. We demonstrate that traveling-wave "ring" cavities can achieve a…

Atomic Physics · Physics 2018-09-24 Kevin C. Cox , David H. Meyer , Nathan A. Schine , Fredrik K. Fatemi , Paul D. Kunz

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

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 investigate a hybrid system consisting of an atomic ensemble trapped inside a dissipative optomechanical cavity assisted with the perturbative oscillator-qubit coupling. It is shown that such a hybrid system is very suitable for…

Quantum Physics · Physics 2018-11-15 Cheng-Hua Bai , Dong-Yang Wang , Shou Zhang , Hong-Fu Wang

We introduce a hybrid optomechanical system containing an annularly trapped Bose-Einstein condensate (BEC) inside an optical cavity driven by Lauguerre-Gaussian (LG) modes. Spiral phase elements serve as the end mirrors of the cavity such…

Quantum Physics · Physics 2024-07-03 Sanket Das , Pardeep Kumar , M. Bhattacharya , Tarak N. Dey

We study an optomechanical system in which the mechanical motion of a single trapped ion is coupled to a cavity field for the realization of a strongly quantum correlated two-mode system. We show that for large pump intensities the steady…

Quantum Physics · Physics 2016-04-20 Aranya B. Bhattacherjee

In this paper, firstly, we consider bipartite entanglement between each part of an optomechanical cavity composed of one dimensional Bose-Einstein condensate (BEC). we investigate atomic collision on the behavior of the BEC in the week…

Quantum Physics · Physics 2017-01-03 Mohammad Eghbali-Arani , Vahid Ameri

Inspired by the discrete-variable pairwise entanglement, in this work, we in theory analyze the continuous-variable pairwise entanglement between microwave modes based on a hybrid optoelectromechanical system, where the multi-pair microwave…

Quantum Physics · Physics 2020-04-02 Qi-Zhi Cai , Jin-Kun Liao , Qiang Zhou

We consider the motion of the end mirror of a cavity in whose standing wave mode pattern atoms are trapped. The atoms and the light field strongly couple to each other because the atoms form a distributed Bragg mirror with a reflectivity…

Atomic Physics · Physics 2009-11-11 D. Meiser , P. Meystre

We study entanglement dynamics in dispersive optomechanical systems consisting of two optical modes and a mechanical oscillator inside an optical cavity. The two optical modes interact with the mechanical oscillator, but not directly with…

Quantum Physics · Physics 2021-01-04 Igor Brandão , Bruno Suassuna , Bruno Melo , Thiago Guerreiro