Synthetic parity-time symmetry breaking in a single microcavity

Abstract

Non-Hermitian systems based on parity-time (PT) symmetry reveal rich physics beyond the Hermitian regime. So far, realizations of PT-symmetric systems have been limited to the spatial domain. Here we theoretically and experimentally demonstrate PT symmetry in a synthetic spectral dimension induced by nonlinear Brillouin scattering in a single optical microcavity, where electromagnetically induced transparency or absorption in two spectral resonances provides the optical gain and loss to observe a phase transition between two symmetry regimes. This scheme provides a new paradigm towards the investigation of non-Hermitian physics in a synthetic photonic dimension for all-optical signal processing and quantum information science.

arXiv comment11 pages, 3 figures

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Cited by in corpus (45)

• Observation of coherent perfect absorption at an exceptional point
• Unconventional Singularity in Anti-Parity-Time Symmetric Cavity Magnonics
• Breaking Anti-$\mathcal{P}\mathcal{T}$ Symmetry by Spinning a Resonator
• Observation of anti-parity-time-symmetry, phase transitions and exceptional points in an optical fibre
• Experimental realization of sensitivity enhancement and suppression with exceptional surfaces
• Liouvillian exceptional points of any order in dissipative linear bosonic systems: Coherence functions and switching between $\mathcal{P}\mathcal{T}$ and anti-$\mathcal{P}\mathcal{T}$ symmetries
• Non-Hermitian Photonic Lattices: tutorial
• Experimental Demonstration of Controllable PT and anti-PT Coupling in a non-Hermitian Metamaterial
• Generating high-order quantum exceptional points in synthetic dimensions
• Nonreciprocal slow or fast light in anti-$\mathcal{P}\mathcal{T}$-symmetric optomechanics
• Chiral polarizer based on encircling EP
• Anti-$\mathcal{P}\mathcal{T}$-symmetric Kerr gyroscope
• Emergent $\mathcal{P}\mathcal{T}$ symmetry in a double-quantum-dot circuit QED set-up
• Topological optomechanical amplifier with synthetic $\mathcal{P}\mathcal{T}$-symmetry
• Pseudo-chirality: a manifestation of Noether's theorem in non-Hermitian systems
• Entanglement Dynamics in Anti-$\mathcal{P}\mathcal{T}$-Symmetric Systems
• Pseudo-Hermiticity protects the energy-difference conservation in the scattering
• Energy-level-attraction and heating-resistant-cooling of mechanical resonators with exceptional points
• Anti-parity-time symmetry hidden in a damping linear resonator
• Coupling-induced nonunitary and unitary scattering in anti-PT-symmetric non-Hermitian systems
• Quantum simulation of a general anti-PT-symmetric Hamiltonian with a trapped ion qubit
• Topological atomic spinwave lattices by dissipative couplings
• Hermitian Nonlinear Wave Mixing Controlled by a PT-Symmetric Phase Transition
• Robust zero modes in non-Hermitian systems without global symmetries
• Non-orthogonal cavity modes near exceptional points in the far field
• Enhanced Frequency Conversion in Parity-Time Symmetry Line
• Analysis of Dirac exceptional points and their isospectral Hermitian counterparts
• Emergent non-Hermitian localization phenomena in the synthetic space of zero-dimensional bosonic systems
• Non-Markovian anti-parity-time symmetric systems: theory and experiment
• Tunable Aharonov-Bohm cages through anti-$\mathcal{P}\mathcal{T}$-symmetric imaginary couplings
• Linear localization of zero modes in weakly coupled non-Hermitian reservoirs
• Subwavelength Photorefractive Grating in a Thin-Film Lithium Niobate Microcavity
• A controllable anti-P-pseudo-Hermitian mechanical system and its application
• Sensitivity of topological edge states in a non-Hermitian dimer chain
• Conserved quantities in non-Hermitian systems via vectorization method
• Manipulating spectral transitions and photonic transmission in a non-Hermitian optical system through nanoparticle perturbations
• Universal quantum control over non-Hermitian continuous-variable systems
• Anti-$\mathcal{P}\mathcal{T}$-symmetric Qubit: Decoherence and Entanglement Entropy
• Computation and Verification of Spectra for Non-Hermitian Systems
• Synthetic high-order PT symmetry in a single coil resonator
• Scalable higher-order exceptional surface with passive resonators
• Enhancement of quantum sensing in a dissipatively coupled two-mode system
• Phonon-induced anomalous gauge potential for photonic isolation in frequency space
• Revealing non-Hermitian band structures of photonic Floquet media
• The Role of Exceptional Points and Transmission Peak Degeneracies in Non-Hermitian Sensing