PT-Symmetric Phonon Laser

Abstract

By exploiting recent developments associated with coupled microcavities, we introduce the concept of PT-symmetric phonon laser with balanced gain and loss. This is accomplished by introducing gain to one of the microcavities such that it balances the passive loss of the other. In the vicinity of the gain-loss balance, a strong nonlinear relation emerges between the intracavity photon intensity and the input power. This then leads to a giant enhancement of both optical pressure and mechanical gain, resulting in a highly efficient phonon-lasing action. These results provide a promising approach for manipulating optomechanical systems through PT-symmetric concepts. Potential applications range from enhancing mechanical cooling to designing phonon-laser amplifiers.

8pages, 7 figures

References in corpus (9)

• Making Sense of Non-Hermitian Hamiltonians
• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Circuit cavity electromechanics in the strong coupling regime
• Single-photon Optomechanics
• Coherent optical wavelength conversion via cavity-optomechanics
• State Transfer Between a Mechanical Oscillator and Microwave Fields in the Quantum Regime
• Observation of Radiation Pressure Shot Noise on a Macroscopic Object
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Cited by in corpus (22)

• Squeezed Optomechanics with Phase-matched Amplification and Dissipation
• $\mathcal{P}\mathcal{T}$-Symmetry-Breaking Chaos in Optomechanics
• Electromagnetially-induced-transparency-like ground-state cooling in a double-cavity optomechanical system
• Integrable $\mathcal{P}T$-symmetric local and nonlocal vector nonlinear Schrödinger equations: a unified two-parameter model
• Controllable optical response by modifying the gain and loss of a mechanical resonator and cavity mode in an optomechanical system
• Su-Schrieffer-Heeger chain with one pair of PT-symmetric defects
• Jarzynski equality in $\mathcal{P}\mathcal{T}$-symmetric quantum mechanics
• Dynamical Phonon Laser in Coupled Active-Passive Microresonators
• Stabilizing Non-Hermitian Systems by Periodic Driving
• Quantum noise effects with Kerr nonlinearity enhancement in coupled gain-loss waveguides
• Observation of optomechanical coupling in a microbottle resonator
• Distant entanglement enhanced in $\mathcal{P}\mathcal{T}$-symmetric optomechanics
• Realization and application of parity-time-symmetric oscillators in quantum regime
• Multi-stability and condensation of exciton-polaritons below threshold
• Localization, quantum resonances and ratchet acceleration in a periodically-kicked $\mathcal{P}\mathcal{T}$-symmetric quantum rotator
• Phonon amplification in two coupled cavities containing one mechanical resonator
• Superradiance and collective gain in multimode optomechanics
• Multiple quantum wells for PT-symmetric phononic crystals
• Sub-Poissonian Phonon Lasing in Three-Mode Optomechanics
• Non-Hermitian interferometer: Unidirectional amplification without distortion
• Spectrum and normal modes of non-hermitian quadratic boson operators
• All-optical photon transmission switching in a passive-active optomechanical system