Mechanical cooling in the bistable regime of a dissipative optomechanical cavity with a Kerr medium

Liu, Ye; Liu, Yang; Hu, Changsheng; Jiang, Yun-Kun; Wu, Huai‐Zhi; Li, Yong

doi:10.1103/physreva.108.023503

Cited by 4 publications

(1 citation statement)

References 82 publications

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“…It has been observed in diverse systems, including Michelson-Sagnac interferometer with a movable membrane, [28] nanomechanical waveguide coupled with a microdisc resonator, [29] whispering-gallery mode coupled with a tapered fiber [30] and photonic crystal cavity. [31] Leveraging dissipative coupling, numerous physical phenomena have been investigated, encompassing electromagnetically induced transparency, [32,33] magnetic field induced nonreciprocity, [34] mechanical oscillator cooling, [25,35] and output light squeezing. [36,37] Both dispersive and dissipative coupling, altering frequency and dissipation through mechanical oscillators, are fundamentally nonlinear in optomechanical systems.…”

Section: Introductionmentioning

confidence: 99%

Nonlinearly induced entanglement in dissipatively coupled optomechanical system

Yang 杨,

Leng 冷,

Cheng 程

et al. 2024

Chinese Phys. B

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Nonlinearly induced steady-state photon-phonon entanglement of a dissipative coupled system is studied in the bistable regime. Quantum dynamical characteristics are analysed by solving the mean-field and fluctuation equations of the system. It is shown that dissipative coupling can induce bistable behaviour for the effective dissipation of the system. Under suitable parameters, one of the steady states significantly reduces the dissipative effect of the system. Consequently, a larger steady-state entanglement can be achieved compared to linear dynamics. Furthermore, the experimental feasibility of the parameters is analysed. Our results provide a new perspective on the implementation of steady-state optomechanical entanglement.

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Section: Introductionmentioning

confidence: 99%

Nonlinearly induced entanglement in dissipatively coupled optomechanical system

Yang 杨,

Leng 冷,

Cheng 程

et al. 2024

Chinese Phys. B

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Controllable Quantum Entanglement and One‐Way Steering in a Dual‐Cavity‐Magnon System

Zuo,

Qian,

et al. 2024

Annalen der Physik

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The quantum entanglement and the one‐way quantum steering in cavity magnonic system composed of a yttrium iron garnet (YIG) sphere and two microwave cavities, one of which is driven by a two‐photon drive field, are studied. Bipartite entanglement, tripartite entanglement, and steering can be achieved under the four‐wave mixing process. It is shown that the degree of entanglement and the direction of one‐way steering can be manipulated not only by designing the dissipation ratio between the two cavity modes but also by regulating the coherent coupling strength ratio between the two cavity modes and the magnon mode. It is found that the direction of steering is associated with the populations of the two cavity modes, meaning that the mode with a greater population always dominates the steering direction. Especially, the transfer between cavity–magnon entanglement and cavity–cavity entanglement can be realized by adjusting the coupling strengths. The findings provide a practical method for coherently manipulating entanglement and one‐way steering in cavity–magnon system.

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Quantum nonlinear effect in a dissipatively coupled optomechanical system

Yang,

Niu,

et al. 2024

Opt. Express

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A full-quantum approach is used to study the quantum nonlinear properties of a compound Michelson-Sagnac interferometer optomechanical system. By deriving the effective Hamiltonian, we find that the reduced system exhibits a Kerr nonlinear term with a complex coefficient, entirely induced by the dissipative and dispersive couplings. Unexpectedly, the nonlinearities resulting from the dissipative coupling possess non-Hermitian Hamiltonian-like properties preserving the quantum nature of the dispersive coupling beyond the traditional system dissipation. This protective mechanism allows the system to exhibit strong quantum nonlinear effects when the detuning (the compound cavity detuning Δ c and the auxiliary cavity detuning Δ e ) and the tunneling coupling strength (J) of two cavities satisfy the relation J2 = Δ c Δ e . Moreover, the additive effects of dispersive and dissipative couplings can produce strong anti-bunching effects, which exist in both strong and weak coupling conditions. Our work may provide a new way to study and produce strong quantum nonlinear effects in dissipatively coupled optomechanical systems.

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Mechanical cooling in the bistable regime of a dissipative optomechanical cavity with a Kerr medium

Cited by 4 publications

References 82 publications

Nonlinearly induced entanglement in dissipatively coupled optomechanical system

Nonlinearly induced entanglement in dissipatively coupled optomechanical system

Controllable Quantum Entanglement and One‐Way Steering in a Dual‐Cavity‐Magnon System

Quantum nonlinear effect in a dissipatively coupled optomechanical system

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