Bistability in a Hybrid Optomechanical System under the Effect of a Nonlinear Medium

Nejad, A. Asghari; Argani, Hassan; Baghshahi, Hamid Reza

doi:10.1088/0256-307x/34/8/084205

Cited by 7 publications

(3 citation statements)

References 35 publications

(45 reference statements)

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“…Here ∆ = ω L − ω a describes the driving laser detuning from the cavity resonance, [17] γ m is the mechanical damping rate, and κ is the cavity intensity decay rate. The vacuum radiation input noise âin with zero mean, has only one nonzero correlation function âin (t) â † in (t ) = δ (t − t ).…”

Section: Physical System and Boundary Entanglementmentioning

confidence: 99%

Nearly invariant boundary entanglement in optomechanical systems*

Cui¹,

Deng²,

Wu³

et al. 2021

Chinese Phys. B

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In order to understand our previous numerical finding that steady-state entanglement along the instability boundary remains unchanged in a three-mode optomechanical system [Phys. Rev. A 101 023838 (2020)], we investigate in detail the boundary entanglement in a simpler two-mode optomechanical system. Studies show that both the mechanism to generate entanglement and the parameter dependence of boundary entanglement are quite similar in these two models. Therefore, the two-mode system has captured the main features in the three-mode system. With the help of analytical calculations and discussing in a much bigger parameter interval, we find that the unchanging behavior previously discovered is actually an extremely slow changing behavior of the boundary entanglement function, and most importantly, this nearly invariant boundary entanglement is a general phenomenon via parametric down conversion process in the weak dissipation regime. This is by itself interesting as threshold quantum signatures in optomechanical phonon lasers, or may have potential value in related applications based on boundary quantum properties.

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Section: Physical System and Boundary Entanglementmentioning

confidence: 99%

Nearly invariant boundary entanglement in optomechanical systems*

Cui¹,

Deng²,

Wu³

et al. 2021

Chinese Phys. B

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“…More of these researches localized the multi-level atomic or quantum dot (QD) systems in free space. As a result, in this study, we will use the assumption that the quantum system is localized close to the metallic nanoparticle (MNP) [6,[21][22][23][24][25] and talk about the OB and optical multistability (OM) by varying the distance between the quantum system and MNP. Recent research has demonstrated that when the quantum system localizes close to the MNP, a number of intriguing optical features can manifest.…”

Section: Introductionmentioning

confidence: 99%

All-optical control of optical bistability in a hybrid system

Aravindhan¹,

Altalbawy²,

Sapaev³

et al. 2023

Laser Phys. Lett.

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In this paper, we study the tunneling induced optical bistability (OB) in a quantum dot (QD)-metallic nanoparticle (MNP) hybrid system via surface plasmon effects. We realized that in the presence of the tunneling effect, OB arises when the probe light is parallel to the major axis of the hybrid system. We realized the threshold of OB can be controlled by controlling the distance parameter between the QD and MNP. For appropriate distance between the QD and MNP, we find that optical multistability (OM) appears in the system. We find that the threshold of OM can be adjusted when we consider the radius effect of the MNP, respectively.

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“…The most typical optomechanical system is composed of an optical cavity with a mechanical resonator. Recently, researchers have extended single-cavity optomechanical systems to hybrid cavity optomechanical systems [11][12][13][14][15][16][17][18] by coupling more optical or mechanical modes, such as an atomic ensemble, a quantum well, a Kerr medium or other media with optomechanical cavities. More optical effects, such as electromagnetically induced transparency, [19][20][21][22][23][24][25][26] optical bistability, [27][28][29][30][31] slow light effects [32][33][34][35][36][37] and so on, have been extensively explored in these hybrid systems.…”

Section: Introductionmentioning

confidence: 99%

Controllable four-wave mixing response in a dual-cavity hybrid optomechanical system*

Shang¹,

Chen²,

Xing³

et al. 2021

Chinese Phys. B

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We systematically investigate the four-wave mixing (FWM) spectrum in a dual-cavity hybrid optomechanical system, which is made up of one optical cavity with an ensemble of two-level atoms and another with a mechanical oscillator. In this work, we propose that the hybrid dual-cavity optomechanical system can be employed as a highly sensitive mass sensor due to the fact that the FWM spectrum generated in this system has a narrow spectral width and the intensity of the FWM can be easily tuned by controlling the coupling strength (cavity–cavity, atom–cavity). More fascinatingly, the dual-cavity hybrid optomechanical system can also be used as an all-optical switch in view of the easy on/off control of FWM signals by adjusting the atom-pump detuning to be positive or negative. The proposed schemes have great potential applications in quantum information processing and highly sensitive detection.

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Bistability in a Hybrid Optomechanical System under the Effect of a Nonlinear Medium

Cited by 7 publications

References 35 publications

Nearly invariant boundary entanglement in optomechanical systems*

Nearly invariant boundary entanglement in optomechanical systems*

All-optical control of optical bistability in a hybrid system

Controllable four-wave mixing response in a dual-cavity hybrid optomechanical system*

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