Tunable optical second-order sideband effects in a parity-time symmetric optomechanical system

Xing, Xiao; Liao, Qinghong; Zhou, Nanrun; Nie, Wenjie

doi:10.1007/s11433-020-1559-4

Cited by 21 publications

(10 citation statements)

References 53 publications

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“…Recently, PT -symmetric crystals have been experimentally realized with bulk boundary dynamics and topology, in photonic graphene [88]. PT -symmetric phonon lasers have also been proposed theoretically [89] and shown experimentally in optomechanical systems [90], which will enable PT -symmetry phononics akin to the photonic domain. PT -symmetry has been observed in dissipative systems in ultracold atoms [91].…”

Section: Discussionmentioning

confidence: 99%

PT-symmetry and supersymmetry: interconnection of broken and unbroken phases

et al. 2021

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The broken and unbroken phases of P T and supersymmetry in optical systems are explored for a complex refractive index profile in the form of a Scarf potential, under the framework of supersymmetric quantum mechanics. The transition from unbroken to the broken phases of P T -symmetry, with the merger of eigenfunctions near the exceptional point is found to arise from two distinct realizations of the potential, originating from the underlying supersymmetry. Interestingly, in P T -symmetric phase, spontaneous breaking of supersymmetry occurs in a parametric domain, possessing non-trivial shape invariances, under reparametrization to yield the corresponding energy spectra. One also observes a parametric bifurcation behaviour in this domain. Unlike the real Scraf potential, in P T -symmetric phase, a connection between complex isospecrtal superpotentials and modified Korteweg-de Vries equation occurs, only with certain restrictive parametric conditions. In the broken P T -symmetry phase, supersymmetry is found to be intact in the entire parameter domain yielding the complex energy spectra, with zero-width resonance occurring at integral values of a potential parameter.

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Section: Discussionmentioning

confidence: 99%

PT-symmetry and supersymmetry: interconnection of broken and unbroken phases

et al. 2021

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“…Here, we ignore the Kerr nonlinear effect term of the magnons caused by the magnetocrystalline anisotropy in the YIG sphere. [42] The total Hamiltonian of the magnomechanical system considered here can be written as [35,56]…”

Section: Theoretical Model and Solutionsmentioning

confidence: 99%

Tunable magnomechanically induced transparency and fast-slow light in a hybrid cavity magnomechanical system

2023

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We theoretically explore the tunability of magnomechanically induced transparency (MMIT) phenomenon and fast-slow light effect in a hybrid cavity magnomechanical system in which a high-quality yttrium iron garnet (YIG) sphere and an atomic ensemble are placed inside a microwave cavity. In the probe output spectrum, we can observe magnon-induced transparency (MIT) and MMIT due to the photon-magnon and phonon-magnon couplings. We further investigate the effect of atomic ensemble on the absorption spectrum. The results show that better transparency can be obtained by choosing appropriate atomic ensemble parameters. We give an explicit explanation for the mechanism of the phenomenon of Fano resonance. Besides, we also discuss the phenomena of slow-light propagation. The maximum group delay increases significantly with the increase of the atom-cavity coupling strength, and the conversion between slow light and fast light can also be achieved by adjusting the atom-cavity coupling strength. These results may have a potential application for quantum information processing and high precision measurement.

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“…The hybrid magnonic systems have many applications in quantum information processing and quantum sensing. [20,21] In addition, quantum emitters coupled to different optical resonators, such as a single quantum dot-photonic crystal nanocavity system [22] and a coupled plasmon-carbon nanotube system, [23] have revealed various remarkable quantum phenomena, including quantum entanglement, [24] four-wave mixing, [25,26] vacuum Rabi splitting, [22,27,28] high-order sideband generation, [29] slow-fast light, [30] and Kerr effect. [31][32][33][34][35] As a nonlinear optical phenomenon, Kerr effect not only reveals signatures of quantum dynamics but also has a few future applications in feedback control and adaptive measurement.…”

Section: Introductionmentioning

confidence: 99%

Vacuum Rabi Splitting and Kerr Effect of a Hybrid Spin–Magnon–Photon System

et al. 2023

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The vacuum Rabi splitting and Kerr effect are investigated theoretically in a hybrid spin-magnon-photon system, where the nitrogen-vacancy center in diamond driven by two light fields is coupled to a spherical micromagnet embedded in a superconducting coplanar waveguide resonator. The results indicate that the phenomenon of the Mollow triplet and vacuum Rabi splitting can appear by controlling the spin-magnon coupling and magnon-photon coupling. It is shown that the probe absorption spectrum can be adjusted effectively via the pump frequency detuning. Moreover, it is demonstrated that the optical Kerr effect can be tuned by changing the Rabi frequency. This work may provide a possibility for the applications in quantum information processing and quantum sensing of magnetic signal.

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Tunable optical second-order sideband effects in a parity-time symmetric optomechanical system

Cited by 21 publications

References 53 publications

PT-symmetry and supersymmetry: interconnection of broken and unbroken phases

PT-symmetry and supersymmetry: interconnection of broken and unbroken phases

Tunable magnomechanically induced transparency and fast-slow light in a hybrid cavity magnomechanical system

Vacuum Rabi Splitting and Kerr Effect of a Hybrid Spin–Magnon–Photon System

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