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We simulate an optomechanical system via a cavity QED scenario with a movable atom and investigate its application in the tiny mass sensing. We find that the steady-state solution of the system exhibits a multiple stability behavior, which…

Quantum Physics · Physics 2022-10-18 Mingzhu Weng , Tian Tian , Zhihai Wang

We provide a full quantum description of the optomechanical system formed by a Fabry-Perot cavity with a movable micro-mechanical mirror whose center-of-mass and internal elastic modes are coupled to the driven cavity mode by both radiation…

Quantum Physics · Physics 2013-02-15 Mehdi Abdi , Ali Reza Bahrampour , David Vitali

Optical cavities with moving mirrors provide a versatile platform for exploring radiation-matter interactions and optically mediated mechanical effects, whose control has wide technological implications. However, capturing the coupled…

The strong coupling of atoms to optical cavities can improve optical lattice clocks as the cavity enables metrologically useful collective atomic entanglement and high-fidelity measurement. To this end, it is necessary to cool the ensemble…

Proposing an optomechanical cavity modulated periodically, we study the modulation synchronization of mechanical modes of the mirrors. A periodic modulation is applied to one of the mirrors, where the second mirror has the capability of…

Quantum Physics · Physics 2019-08-16 Vahid Ameri , Mohammad Eghbali-Arani , Morteza Rafiee

We have fabricated an atom chip device which combines the circuitry for magnetic trapping of cold atoms with high-finesse optical resonators suitable for cavity QED in the single-atom strong coupling regime. Fabry-Perot optical resonators…

Quantum Physics · Physics 2009-11-13 T. P. Purdy , D. M. Stamper-Kurn

We investigate a setup where a cloud of atoms is trapped in an optical lattice potential of a standing wave laser field which is created by retro-reflection on a micro-membrane. The membrane vibrations itself realize a quantum mechanical…

Quantum Physics · Physics 2010-08-31 K. Hammerer , K. Stannigel , C. Genes , P. Zoller , P. Treutlein , S. Camerer , D. Hunger , T. W. Haensch

Entanglement plays a crucial role in the development of quantum-enabled devices. One significant objective is the deterministic creation and distribution of entangled states, achieved, for example, through a mechanical oscillator…

The dominant hurdle to the operation of optomechanical systems in the quantum regime is the coupling of the vibrating element to a thermal reservoir via mechanical supports. Here we propose a scheme that uses an optical spring to replace…

Quantum Physics · Physics 2015-05-19 S. Singh , G. A. Phelps , D. S. Goldbaum , E. M. Wright , P. Meystre

We study the optical cooling of the resonator mirror in a cavity-optomechanical system that contains an optical gain medium. We find that the optical damping rate is vanishingly small for an incoherently pumped laser above threshold. In the…

Quantum Physics · Physics 2015-06-12 Li Ge , Sanli Faez , Florian Marquardt , Hakan E. Tureci

We experimentally demonstrate the Talbot effect resulting from the repeated self-reconstruction of a spatially intensity-modulated probe field under the Fresnel near-field regime. By launching the probe beam into an optically induced atomic…

We present a theoretical model for electromagnetically induced transparency (EIT) in vapor, that incorporates atomic motion and velocity-changing collisions into the dynamics of the density-matrix distribution. Within a unified formalism we…

Quantum Physics · Physics 2008-06-06 O. Firstenberg , M. Shuker , R. Pugatch , D. R. Fredkin , N. Davidson , A. Ron

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

A promising approach to merge atomic systems with scalable photonics has emerged recently, which consists of trapping cold atoms near tapered nanofibers. Here, we describe a novel technique to achieve strong, coherent coupling between a…

Quantum Physics · Physics 2015-06-03 D. E. Chang , L. Jiang , A. V. Gorshkov , H. J. Kimble

The interaction between an atomic ensemble and a light mode in a high-finesse optical cavity can easily reach the strong-coupling regime, where quantum effects dominate. In this regime, the interaction can be used to generate both…

We realize a ring cavity strongly interacting with an atom array with configurable spatial structures. By preparing the atom array with a maximized structure factor, we observe the emergence of a cavity dark mode, where the standing-wave…

Quantum Physics · Physics 2024-10-29 Xiaotian Zhang , Zhanhai Yu , Hongrui Zhang , Di Xiang , Hao Zhang

We propose a scheme that can generate tunable optomechanically induced transparency in a hybrid piezooptomechanical cavity system. The system is composed of a high-quality planar distributed Bragg reflector cavity modified with an embedded…

Quantum Physics · Physics 2022-03-28 Shi-Chao Wu , Li Zhang , Jian Lu , Li-Guo Qin , Zhong-Yang Wang

We present a detailed study to show the possibility of approaching the quantum ground-state of a hybrid optomechanical quantum device formed by a Bose-Einstein condensate (BEC) confined inside a high-finesse optical cavity with an…

Quantum Gases · Physics 2015-06-12 Sonam Mahajan , Neha Aggarwal , Aranya B Bhattacherjee , ManMohan

Ground-state cooling of mechanical resonators is a prerequisite for the observation of various quantum effects in optomechanical systems and thus has always been a crucial task in quantum optomechanics. In this paper, we study how to…

Quantum Physics · Physics 2025-01-13 Lei Du , Juliette Monsel , Witlef Wieczorek , Janine Splettstoesser

In this paper, we analytically present the phenomena of nanomechanically induced transparency (NMIT) and transmission rate in a parity-time-symmetric ($\mathcal{PT}$-symmetric) opto-nanomechanical system (ONMS) where a levitated dielectric…

Quantum Physics · Physics 2024-05-17 Amjad Sohail , Rizwan Ahmed , Hazrat Ali