Realization and application of parity-time-symmetric oscillators in quantum regime
arXiv:1609.02403 · doi:10.1103/PhysRevA.95.023827
Abstract
Although people have already artificially formed parity--time () symmetry with gain and loss in a balanced manner, it is still a defect that the gain is restricted to semi--classical but not full quantum. Here we propose and analyze a theoretical scheme to realize full quantum oscillator --symmetry. The quantum gain is provided by a dissipation optical cavity with blue detuned laser field. After adiabatically eliminating the cavity modes, we give an effective master equation, which is a more complete quantum description compared with non--Hermitian Hamiltonian, to reveal the quantum behaviors of such a gain oscillator. This kind of --symmetry can eliminate the dissipation effect in quantum regime. As examples, we finally apply --symmetric oscillators to enhance optomechanically induced transparency and to preserve oscillator non--classical state.
References in corpus (11)
- Making Sense of Non-Hermitian Hamiltonians
- Optomechanical entanglement between a movable mirror and a cavity field
- Loss-induced suppression and revival of lasing
- PT-Symmetric Phonon Laser
- -Symmetry-Breaking Chaos in Optomechanics
- Optomechanically-Induced Transparency in partiy-time-symmetric microresonators
- Electromagnetially-induced-transparency-like ground-state cooling in a double-cavity optomechanical system
- Mutual information as an order parameter for quantum synchronization
- -Symmetry-Induced Wave Confinement and Guiding in Epsilon-Near-Zero Metamaterials
- Parity-Time Symmetric Coupled Microresonators with a Dispersive Gain/Loss
- Cyclic permutation-time symmetric structure with coupled gain-loss microcavities