Quantum phases of a multimode bosonic field coupled to flat electronic bands

Abstract

We investigate the quantum phases of systems in which a multimode bosonic field is coupled to the transitions between two flat electronic bands. In the literature, such systems are usually modeled using a single or multimode Dicke model, leading to the prediction of superradiant quantum phase transitions for large enough couplings. We show that the physics of these systems is remarkably richer than previously expected, with the system continuously interpolating between a Dicke model exhibiting a superradiant quantum phase transition and a quantum Rabi model with no phase transition.

References in corpus (31)

• Room-Temperature Quantum Hall Effect in Graphene
• The Dicke Quantum Phase Transition with a Superfluid Gas in an Optical Cavity
• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• High temperature fractional quantum Hall states
• Fractional quantum Hall states at zero magnetic field
• Nearly-flat bands with nontrivial topology
• On the Integrability of the Rabi Model
• Quantum phase transitions of light
• Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
• Quantum vacuum properties of the intersubband cavity polariton field
• Ultrastrong coupling of the cyclotron transition of a two-dimensional electron gas to a THz metamaterial
• Flat bands and Wigner crystallization in the honeycomb optical lattice
• Quantum Chaos Triggered by Precursors of a Quantum Phase Transition: The Dicke Model
• Entanglement and the Phase Transition in Single Mode Superradiance
• Ultracold Atoms in a Tunable Optical Kagome Lattice
• Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
• Nearly flat band with Chern number C=2 on the dice lattice
• Quantum vacuum radiation spectra from a semiconductor microcavity with a time-modulated vacuum Rabi frequency
• Dynamics of Nonequilibrium Dicke Models
• Extracavity quantum vacuum radiation from a single qubit
• Dicke quantum spin glass of atoms and photons
• Nonequilibrium Quantum Phase Transitions in the Dicke Model
• Superfluid-Mott Insulator Transition of Light in the Jaynes-Cummings Lattice
• Ultrastrong coupling between a cavity resonator and the cyclotron transition of a 2D electron gas in the case of integer filling factor
• On the phase transition of light in cavity QED lattices
• Vacuum degeneracy of a circuit-QED system in the ultrastrong coupling regime
• Quantum Simulation of the Ultrastrong Coupling Dynamics in Circuit QED
• Optical Kagome lattice for ultra-cold atoms with nearest neighbor interactions
• Cavity QED of the graphene cyclotron transition
• Entangled photons from the polariton vacuum in a switchable optical cavity
• Dynamical Casimir Effect in cavity with N-level detector or N-1 two-level atoms

Cited by in corpus (12)

• Ultrastrong coupling between light and matter
• Open quantum systems with local and collective incoherent processes: Efficient numerical simulation using permutational invariance
• Light-matter decoupling in the deep strong coupling regime: The breakdown of the Purcell effect
• Experimental Implementations of Cavity-Magnon Systems: from Ultra Strong Coupling to Applications in Precision Measurement
• Cavity-assisted mesoscopic transport of fermions: Coherent and dissipative dynamics
• Light-matter decoupling and $A^2$ term detection in superconducting circuits
• Terahertz emission from AC Stark-split asymmetric intersubband transitions
• Multielectron Ground State Electroluminescence
• Characterizing Superradiant Phase of the Quantum Rabi Model
• Lee-Yang theory of the superradiant phase transition in the open Dicke model
• Theory of intersubband resonance fluorescence
• Dissecting Superradiant Phase Transition in the Quantum Rabi Model