Squeezed light and correlated photons from dissipatively coupled optomechanical systems

Kilda, Dainius; Nunnenkamp, Andreas

doi:10.1088/2040-8978/18/1/014007

Cited by 25 publications

(17 citation statements)

References 23 publications

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“…This implies that, for the dissipative coupling system, this regime is extremely unfavorable for the squeezing purposes. Our results also provide qualitative explanation for the numerical results on the optomechanical instability obtained by Nunnenkamp and coworkers 4,5,7 . Specifically, we have demonstrated that, for small detuning, the stability diagrams for the cases of purely dispersive and purely dissipative coupling are complimentary.…”

Section: Discussionsupporting

confidence: 83%

Dissipative versus dispersive coupling in quantum optomechanics: Squeezing ability and stability

Tagantsev

Sokolov

Polzik³

2018

Phys. Rev. A

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Generation of squeezed light and optomechanical instability for dissipative type of optomechanical coupling is theoretically addressed for a cavity with the input mirror, serving as a mechanical oscillator, or an equivalent system. The problem is treated analytically for the case of resonance excitation or small detunings, mainly focusing on the bad cavity limit. A qualitative difference between the dissipative and purely dispersive coupling is reported. In particular, it is shown that, for the purely dissipative coupling in the bad cavity regime, the backaction is strongly reduced and the squeezing ability of the system is strongly suppressed, in contrast to the case of purely dispersive coupling. It is also shown that, for small detunings, stability diagrams for the cases of the purely dispersive and dissipative couplings are qualitatively identical to within the change of the sign of detuning. The results obtained are compared with those from the recent theoretical publications.

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Section: Discussionsupporting

confidence: 83%

Dissipative versus dispersive coupling in quantum optomechanics: Squeezing ability and stability

Tagantsev

Sokolov

Polzik³

2018

Phys. Rev. A

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“…Currently, with the rapid progress of practical technologies in cavity optomechanics, the mechanical resonator can be cooled down close to the quantum ground state [2][3][4]. Thus it is possible to explore quantum effects in macroscopic systems, including superposition state [5,6], entanglement [7][8][9], squeezing of light [10][11][12][13][14][15][16], squeezing of the mechanical resonator , etc.…”

Section: Introductionmentioning

confidence: 99%

Strong mechanical squeezing and its detection

Agarwal¹,

Huang²

2016

Phys. Rev. A

134

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We report an efficient mechanism to generate a squeezed state of a mechanical mirror in an optomechanical system. We use especially tuned parametric amplifier (PA) inside the cavity and the parametric photon phonon processes to transfer quantum squeezing from photons to phonons with almost 100% efficiency. We get 50% squeezing of the mechanical mirror which is limited by the PA. We present analytical results for the mechanical squeezing thus enabling one to understand the dependence of squeezing on system parameters like gain of PA, cooperativity, temperature. As in cooling experiments the detrimental effects of mirror's Brownian and zero point noises are strongly suppressed by the pumping power. By judicious choice of the phases, the cavity output is squeezed only if the mirror is squeezed thus providing us a direct measure of the mirror's squeezing. Further considerable larger squeezing of the mirror can be obtained by adding the known feedback techniques.

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“…The dissipative coupling can do virtually all the jobs of the dispersive coupling, such as optomechanical cooling, optical squeezing, and mechanical sensing while the physical conditions and mechanisms encountered in it are rather different. Among theoretical predictions analyzed for dissipative-coupling-assisted systems are the possibility of simultaneous squeezing and sideband cooling 6 , a stable optical-spring effect, which is notfeed-back-assisted 8 , a virtually perfect squeezing of the optical noise in a system exhibiting no optomechanical instability 13 , and not-feed-back-assisted cooling of a mechanical oscillator under the resonance excitation 10 , the latter also demonstrated experimentally 23 .…”

Section: Introductionmentioning

confidence: 98%

“…To fill the gap, those authors have introduced the so-called dissipative coupling, which originates from the dependence of the cavity decay rate on the position of the mechanical oscillator. Since then such a coupling has been attracting an appreciable attention of theorists [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] and experimentalists [22][23][24][25][26][27] . The dissipative coupling can do virtually all the jobs of the dispersive coupling, such as optomechanical cooling, optical squeezing, and mechanical sensing while the physical conditions and mechanisms encountered in it are rather different.…”

Section: Introductionmentioning

confidence: 99%

"Membrane-outside" as an optomechanical system

Tagantsev,

Polzik

2021

Preprint

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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 light field through the other mirror. Our study is focused on the regime where the dispersive optomechanical coupling in the system vanishes. Such a regime is found to be possible if the membrane is less reflecting than the adjacent mirror, yielding a potentially very strong dissipative optomechanical coupling. Specifically, if the absolute values of amplitude transmission coefficients of the membrane and the mirror, t and t m respectively, obey the condition t 2 m < t t m 1, the dissipative coupling constant of the setup exceeds the dispersive coupling constant for an optomechanical cavity of the same length. The dissipative coupling constant and the corresponding optomechanical cooperativity of the proposed system are also compared with those of the Michelson-Sagnac interferometer and the so-called "membraneat-the-edge" system, which are known for a strong optomechanical dissipative interaction. It is shown that under the above condition, the system proposed here is advantageous in both aspects.It also enables an efficient realization of the two-port configuration, which was recently proposed as a promising optomechanical system, providing, among other benefits, a possibility of quantum limited optomechanical measurements in a system, which does not suffer from any optomechanical instability.

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Squeezed light and correlated photons from dissipatively coupled optomechanical systems

Cited by 25 publications

References 23 publications

Dissipative versus dispersive coupling in quantum optomechanics: Squeezing ability and stability

Dissipative versus dispersive coupling in quantum optomechanics: Squeezing ability and stability

Strong mechanical squeezing and its detection

"Membrane-outside" as an optomechanical system

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