Entangling the motion of two optically trapped objects via time-modulated driving fields

被引：37

作者：

Abdi, Mehdi ^{[1
]}

Hartmann, Michael J. ^{[2
]}

机构：

[1] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

[2] Heriot Watt Univ, Inst Photon & Quantum Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

NEW JOURNAL OF PHYSICS | 2015年 / 17卷

关键词：

entanglement; optomechanics; optical trapping; LEVITATED NANOSPHERE;

D O I：

10.1088/1367-2630/17/1/013056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study entanglement of the motional degrees of freedom of two tethered and optically trapped microdisks inside a single cavity. By properly choosing the position of the trapped objects in the optical cavity and driving proper modes of the cavity, it is possible to equip the system with linear and quadratic optomechanical couplings. We show that a parametric coupling between the fundamental vibrational modes of two tethered microdisks can be generated via a time-modulated input laser. For a proper choice of the modulation frequency, this mechanism can drive the motion of the microdisks into an inseparable state in the long time limit via a two-mode squeezing process. We numerically confirm the performance of our scheme for current technology and briefly discuss an experimental setup that can be used for detecting this entanglement by employing the quadratic coupling. We also comment on the perspectives for generating such entanglement between the oscillations of optically levitated nanospheres.

引用

页数：11

共 42 条

[1] Entanglement Swapping with Local Certification: Application to Remote Micromechanical Resonators [J].

Abdi, M. ;

Pirandola, S. ;

Tombesi, P. ;

Vitali, D. .

PHYSICAL REVIEW LETTERS, 2012, 109 (14)

[2] Determination of continuous variable entanglement by purity measurements [J].

Adesso, G ;

Serafini, A ;

Illuminati, F .

PHYSICAL REVIEW LETTERS, 2004, 92 (08)

[3] Is Quantum Theory Exact? [J].

Adler, Stephen L. ;

Bassi, Angelo .

SCIENCE, 2009, 325 (5938) :275-276

[4] Detecting High-Frequency Gravitational Waves with Optically Levitated Sensors [J].

Arvanitaki, Asimina ;

Geraci, Andrew A. .

PHYSICAL REVIEW LETTERS, 2013, 110 (07)

[5]

Aspelmeyer M, 2014, QUANT SCI TECH, P1, DOI 10.1007/978-3-642-55312-7

[6] Ultrahigh-Q mechanical oscillators through optical trapping [J].

Chang, D. E. ;

Ni, K-K ;

Painter, O. ;

Kimble, H. J. .

NEW JOURNAL OF PHYSICS, 2012, 14

[7] Cavity opto-mechanics using an optically levitated nanosphere [J].

Chang, D. E. ;

Regal, C. A. ;

Papp, S. B. ;

Wilson, D. J. ;

Ye, J. ;

Painter, O. ;

Kimble, H. J. ;

Zoller, P. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2010, 107 (03) :1005-1010

[8] Can quantum-mechanical description of physical reality be considered complete? [J].

Einstein, A ;

Podolsky, B ;

Rosen, N .

PHYSICAL REVIEW, 1935, 47 (10) :0777-0780

[9] Enhancing quantum effects via periodic modulations in optomechanical systems [J].

Farace, Alessandro ;

Giovannetti, Vittorio .

PHYSICAL REVIEW A, 2012, 86 (01)

[10] Bringing Entanglement to the High Temperature Limit [J].

Galve, Fernando ;

Pachon, Leonardo A. ;

Zueco, David .

PHYSICAL REVIEW LETTERS, 2010, 105 (18)

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