Catastrophic transition between dynamical patterns in a phonon laser

Lin, Qing; He, Bing; Xiao, Min

doi:10.1103/physrevresearch.3.l032018

Cited by 12 publications

(2 citation statements)

References 69 publications

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“…So the compound system behaves as a two-level laser system, in which the optical supermodes play the role of laser medium and the laser field is provided by the phonon mode. This architecture has motivated many phonon lasering schemes which possess different properties, such as parity-time symmetry [22][23][24][25], exceptional points [26], nonreciprocity [27], and polarization dependence [28,29]. Moreover, ultralow-threshold phonon lasering can be realized by using two optical parametric amplifiers (OPAs) in a coupled cavity optomechanical system, which is controlled by the phase difference from the two OPAs [30].…”

Section: Introductionmentioning

confidence: 99%

Generation and manipulation of phonon lasering in a two-drive cavity magnomechanical system

et al. 2023

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A simple and feasible scheme for the generation and manipulation of phonon lasering is proposed and investigated based on a generic three-mode cavity magnomechanical system, in which a magnon mode couples simultaneously with a microwave cavity mode and a phonon mode. In sharp contrast to all previous phonon lasering schemes with only a single drive, the input pump field for the system in the proposed scheme is split into two microwave driving fields to drive the microwave cavity mode and the magnon mode, respectively. The impact of changing relative phase and relative amplitude ratio of the two microwave drives on mechanical gain, stimulated emitted phonon number, threshold power, and phonon emission line shape are theoretically and numerically investigated. The results indicate that the phonon laser action can be effectively controlled simply by adjusting the relative phase and relative amplitude ratio, so additional and tunable degrees of freedom are introduced to control the phonon laser. Considering the experimental feasibility of the generic cavity magnomechanical system and the two-drive approach, the present scheme provides a potentially practical route for the development of tunable phonon lasering devices with low-threshold, high-gain, and narrow-linewidth properties based on the platform of cavity magnomechanics.

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Section: Introductionmentioning

confidence: 99%

Generation and manipulation of phonon lasering in a two-drive cavity magnomechanical system

et al. 2023

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“…This novel mechanism enriches the control methods of photons, and allows the investigation of some fascinating phenomena in the classical and quantum regimes, [17][18][19][20][21][22][23][24][25][26][27] such as optomechanically induced transparency, high-order sideband generation, photon blockade, and entanglement. Further, phonon lasers have been studied experimentally and theoretically [28][29][30][31][32][33] by manipulating phonons in COM systems. Compared to optical lasers, a phonon laser [34] has the following advantages: the phonon cavity is easy to tune, the speed of a sound wave is significantly slower than that of light, and the phonon is not affected by radiation loss in a vacuum.…”

mentioning

confidence: 99%

Nonreciprocal Phonon Laser in an Asymmetric Cavity with an Atomic Ensemble

Huang 黄,

Wang 王,

Qiu 邱

et al. 2023

Chinese Phys. Lett.

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Phonon laser, as a novel laser to generate coherent sound oscillation, has attracted extensive attention. Here, we theoretically propose a nonreciprocal phonon laser in a hybrid optomechanical system, which is composed of asymmetric Fabry-Perot cavity, an ensemble of $N$ identical two-level atoms, and mechanical oscillator. The effective driving amplitude related to driving direction leads to the obvious difference in mechanical gain and threshold power, bringing about nonreciprocal phonon laser. In addition, the dependence of the phonon laser on the atomic parameters is also discussed, including the decay rate of the atoms and the coupling strength between the atoms and the cavity field, which provides an additional degree of freedom to control the phonon laser action. Our work provides a path to realize phonon laser in atoms-cavity optomechanical system and may enlighten the manufacture of directional coherent phonon sources.

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UltraLow Threshold Phonon Laser in a PT$\mathcal {PT}$‐Symmetric Cavity Magnomechanical System

Ding,

Zheng,

Shi

et al. 2024

Adv Quantum Tech

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The magnomechanical interaction arises from the coupling between magnons and phonons, an effect that has attracted significant attention. Leveraging this foundation, an ultralow threshold phonon laser within a parity‐time ()‐symmetric cavity magnomechanical (CMM) system is investigated. The ‐symmetry is achieved by incorporating a gain mechanism into the cavity mode and the amplification of phonon excitation number is achieved through the pumping of magnon mode. As the gain and dissipation approach the equilibrium, the mechanical gain undergoes a notable amplification, giving rise to a phonon laser action characterized by an ultralow threshold condition. This finding not only promotes a cross‐disciplinary approach in fields such as non‐Hermitian physics and quantum magnomechanics but also points to a promising path for enhancing the magnomechanical effect.

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Catastrophic transition between dynamical patterns in a phonon laser

Cited by 12 publications

References 69 publications

Generation and manipulation of phonon lasering in a two-drive cavity magnomechanical system

Generation and manipulation of phonon lasering in a two-drive cavity magnomechanical system

Nonreciprocal Phonon Laser in an Asymmetric Cavity with an Atomic Ensemble

UltraLow Threshold Phonon Laser in a PT$\mathcal {PT}$‐Symmetric Cavity Magnomechanical System

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