Anomalous criticality with bounded fluctuations and long-range frustration induced by broken time-reversal symmetry
arXiv:2208.02268 · doi:10.1103/PhysRevResearch.5.L042016
Abstract
We consider a one-dimensional Dicke lattice with complex photon hopping amplitudes and investigate the influence of time-reversal symmetry breaking due to synthetic magnetic fields. We show that, by tuning the total flux threading the lattice with a periodic boundary condition, the universality class of superradiant phase transition (SPT) changes from that of the mean-field fully connected systems to one that features anomalous critical phenomena. The anomalous SPT exhibits a closing of the energy gap with different critical exponents on both sides of transition and a discontinuity of correlations and fluctuation despite it being a second-order phase transition. In the anomalous normal phase, we find that a non-mean-field critical exponent for the closing energy gap and nondivergent fluctuations and correlations appear, which we attribute to the asymmetric dispersion relation. Moreover, we show that the nearest neighborhood complex hopping induces effective long-range interactions for position quadratures of the cavity fields, whose competition leads to a series of first-order phase transitions among superradiant phases with varying degrees of frustration. The resulting multicritical points also show anomalous features such as two coexisting critical scalings on both sides of the transition. Our work shows that the interplay between the broken time-reversal symmetry and frustration on bosonic lattice systems can give rise to anomalous critical phenomena that have no counterpart in fermionic, spin, or time-reversal symmetric quantum optical systems.
arXiv comment5pages, published version
References in corpus (49)
- Topological Photonics
- Topological Photonics
- Scaling of Entanglement close to a Quantum Phase Transitions
- The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
- Synthetic magnetic fields for ultracold neutral atoms
- Topological Bands for Ultracold Atoms
- Chaos and the Quantum Phase Transition in the Dicke Model
- Quantum Chaos Triggered by Precursors of a Quantum Phase Transition: The Dicke Model
- Chiral groundstate currents of interacting photons in a synthetic magnetic field
- Entanglement and the Phase Transition in Single Mode Superradiance
- Quantum Phase Transition and Universal Dynamics in the Rabi model
- Time-reversal symmetry breaking in circuit-QED based photon lattices
- The Dicke model phase transition in the quantum motion of a Bose-Einstein condensate in an optical cavity
- Dynamical phase transition in the open Dicke model
- Introduction to the Dicke model: from equilibrium to nonequilibrium, and vice versa
- Artificial Gauge Field for Photons in Coupled Cavity Arrays
- Finite-Size Scaling Exponents of the Lipkin-Meshkov-Glick Model
- Critical Quantum metrology with a finite-component quantum phase transition
- Synthetic Landau levels for photons
- Emergent superfluid crystals, frustration, and topologically defected states in multimode cavity QED
- Tunable Chiral Bound States with Giant Atoms
- Superradiant Phase Transitions and the Standard Description of Circuit QED
- Dynamic framework for criticality-enhanced quantum sensing
- Dicke quantum spin glass of atoms and photons
- Frustration and glassiness in spin models with cavity-mediated interactions
- Criticality-Enhanced Quantum Sensing via Continuous Measurement
- Spinor self-ordering of a quantum gas in a cavity
- Synthetic Gauge Fields for Vibrational Excitations of Trapped ions
- Verification of a many-ion simulator of the Dicke model through slow quenches across a phase transition
- Synthesis and Observation of Non-Abelian Gauge Fields in Real Space
- Vacuum degeneracy of a circuit-QED system in the ultrastrong coupling regime
- Implementation of the Dicke lattice model in hybrid quantum system arrays
- Non-Hermitian chiral phononics through optomechanically-induced squeezing
- Topologically Protected Quantum State Transfer in a Chiral Spin Liquid
- Sonic Landau-level lasing and synthetic gauge fields in mechanical metamaterials
- Synthetic gauge field in a single optomechanical resonator
- Dicke Quantum Spin and Photon Glass in Optical Cavities: Non-equilibrium theory and experimental signatures
- Realizing a 1D topological gauge theory in an optically dressed BEC
- Cavity-induced quantum spin liquids
- Light-matter interactions in synthetic magnetic fields: Landau-photon polaritons
- Quantum tricriticality of chiral-coherent phase in quantum Rabi triangle
- Enhancing associative memory recall and storage capacity using confocal cavity QED
- Critical exponents can be different on the two sides of a transition: A generic mechanism
- Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment
- Tunable pseudo-magnetic fields for polaritons in strained metasurfaces
- Quantum Hall phase emerging in an array of atoms interacting with photons
- Understanding the quantum Rabi ring using analogies to quantum magnetism
- Frustrated Superradiant Phase Transition
- The effect of active photons on dynamical frustration in cavity QED