Non-Hermitian Kibble-Zurek mechanism with tunable complexity in single-photon interferometry

Abstract

Non-Hermitian descriptions of quantum matter have seen impressive progress recently, with major advances in understanding central aspects such as their topological properties or the physics of exceptional points, the non-Hermitian counterpart of critical points. Here, we use single-photon interferometry to reconstruct the non-Hermitian Kibble-Zurek mechanism and its distinct scaling behavior for exceptional points, by simulating the defect production upon performing slow parameter ramps. Importantly, we are able to realise also higher-order exceptional points, providing experimental access to their theoretically predicted characteristic Kibble-Zurek scaling behaviour. Our work represents a crucial step in increasing the experimental complexity of non-Hermitian quantum time-evolution. It thus also furthers the quest to move the frontier from purely single-particle physics towards increasingly complex settings in the many-body realm.

8 pages, 6 figures

References in corpus (38)

• Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry
• Nonequilibrium dynamics of closed interacting quantum systems
• The physics of exceptional points
• Dynamically encircling exceptional points in a waveguide: asymmetric mode switching from the breakdown of adiabaticity
• Anomalous edge state in a non-Hermitian lattice
• Topological energy transfer in an optomechanical system with exceptional points
• Experimental Study of Active LRC Circuits with PT-Symmetries
• Observation of the e/3 Fractionally Charged Laughlin Quasiparticles
• Probing topological invariants in the bulk of a non-Hermitian optical system
• Observation of non-Hermitian degeneracies in a chaotic exciton-polariton billiard
• Observation of parity-time symmetry breaking transitions in a dissipative Floquet system of ultracold atoms
• Quantum Kibble-Zurek mechanism and critical dynamics on a programmable Rydberg simulator
• Observation of PT phase transition in a simple mechanical system
• Parity-time-symmetric quantum critical phenomena
• Information Retrieval and Criticality in Parity-Time-Symmetric Systems
• Mean-field dynamics of a non-Hermitian Bose-Hubbard dimer
• General description of quasi-adiabatic dynamical phenomena near exceptional points
• Detecting topological invariants in nonunitary discrete-time quantum walks
• Observation of critical phenomena in parity-time-symmetric quantum dynamics
• Observation of Exceptional Points in Electronic Circuits
• Kibble-Zurek Mechanism in a Spin-1 Bose-Einstein Condensate
• Exceptional rings protected by emergent symmetry for mechanical systems
• Constant-pressure sound waves in non-Hermitian disordered media
• Collectivity, Phase Transitions and Exceptional Points in Open Quantum Systems
• Non-Hermitian shortcut to adiabaticity
• Full-Counting Many-Particle Dynamics: Nonlocal and Chiral Propagation of Correlations
• Quantized conductance through a spin-selective atomic point contact
• Engineering tunable local loss in a synthetic lattice of momentum states
• Quantized conductance through a dissipative atomic point contact
• The Kibble-Zurek mechanism at exceptional points
• Experimentally testing quantum critical dynamics beyond the Kibble-Zurek mechanism
• Quantum optical realization of arbitrary linear transformations allowing for loss and gain
• Electric-circuit simulation of the Schrödinger equation and non-Hermitian quantum walks
• Quantitative verification of the Kibble-Zurek mechanism in quantum non-equilibrium dynamics
• Kibble-Zurek scaling in the Yang-Lee edge singularity
• Convective and absolute PT symmetry breaking in tight-binding lattices
• Hamilton's turns as visual tool-kit for designing of single-qubit unitary gates
• Kibble-Zurek mechanism in the self-organization of a cold atomic cloud

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• Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays
• Kubo formula for non-Hermitian systems and tachyon optical conductivity
• $\mathcal{P}\mathcal{T}$-symmetric, non-Hermitian quantum many-body physics -- a methodological perspective
• Correlations at PT-symmetric quantum critical point
• Exponentially-enhanced Quantum Non-Hermitian Sensing via Optimized Coherent Drive
• Unconventional critical exponents at dynamical quantum phase transitions in a random Ising chain
• Encircling the Liouvillian exceptional points: a brief review
• Experimental observation of the Yang-Lee quantum criticality in open systems
• Quantum Metric Unveils Defect Freezing in Non-Hermitian Systems
• Photonic chiral state transfer near the Liouvillian exceptional point
• Imaginary gap-closed points and dynamics in a class of dissipative systems
• Kibble-Zurek scaling in one-dimensional localization transitions
• Kibble-Zurek scaling due to environment temperature quench in the transverse field Ising model
• Unitarity of Symplectic Fermion in $\alpha$-vacua with Negative Central Charge
• Adiabatic-impulse approximation in non-Hermitian Landau-Zener Model
• Non-equilibrium dynamics of localization phase transition in the non-Hermitian Disorder-Aubry-André model
• Defect production due to time-dependent coupling to environment in the Lindblad equation
• Momentum space magic for the transverse field quantum Ising model
• Non-hermitian off-diagonal magnetic response of Dirac fermions
• Adiabaticity enhancement in the classical transverse field Ising chain, and its effective non-Hermitian description
• Dynamical Quantum Phase Transitions and Many-Body Backflow in Open Quantum Systems
• Non-Hermiticity induced thermal entanglement phase transition