Robust photon transmission in nonlinear parity-time-symmetric cavities

Abstract

We explore the photon transfer in the nonlinear parity-time-symmetry system of two coupled cavities, which contains nonlinear gain and loss dependent on the intracavity photons. Analytical solution to the steady state gives a saturated gain, which satisfy the parity-time symmetry automatically. The eigen-frequency self-adapts the nonlinear saturated gain to reach the maximum efficiency in the steady state. We find that the saturated gain in the weak coupling regime does not match the loss in the steady state, exhibiting an appearance of a spontaneous symmetry-breaking. The photon transmission efficiency in the parity-time-symmetric regime is robust against the variation of the coupling strength, which improves the results of the conventional methods by tuning the frequency or the coupling strength to maintain optimal efficiency. Our scheme provides an experimental platform for realizing the robust photon transfer in cavities with nonlinear parity-time symmetry.

arXiv comment5 pages,3 figures

References in corpus (21)

• Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry
• Nonreciprocal light transmission in parity-time-symmetric whispering-gallery microcavities
• PT-symmetry breaking and laser-absorber modes in optical scattering systems
• Visualization of Branch Points in PT-Symmetric Waveguides
• Spawning rings of exceptional points out of Dirac cones
• PT-Symmetric Phonon Laser
• Reservoir-engineered entanglement in optomechanical systems
• $\mathcal{P}\mathcal{T}$-Symmetry-Breaking Chaos in Optomechanics
• Extension of PT-Symmetric Quantum Mechanics to Quantum Field Theory with Cubic Interaction
• Steady-state Mechanical Squeezing in an Optomechanical System via Duffing Nonlinearity
• Observation of a Chiral State in a Microwave Cavity
• Dissipation-driven two-mode mechanical squeezed states in optomechanical systems
• Nonlinear reversal of PT symmetric phase transition in a system of coupled semiconductor micro-ring resonators
• Macroscopic quantum entanglement in modulated optomechanics
• Nonlinear modal interactions in parity-time ($\mathcal{P}\mathcal{T}$) symmetric lasers
• Spontaneous Generation of Photons in Transmission of Quantum Fields in PT Symmetric Optical Systems
• Physics counterpart of the PT non-hermitian tight-binding chain
• PT-symmetry breaking in the steady state of microscopic gain-loss systems
• Transmission Nonreciprocity in a Mutually Coupled Circulating Structure
• Photonic molecules formed by coupled hybrid resonators
• Wave scattering on a domain wall in a chain of PT-symmetric couplers