Circuit configurations which can/cannot show super-radiant phase transitions

Abstract

Several superconducting circuit configurations are examined on the existence of super-radiant phase transitions (SRPTs) in thermal equilibrium. For some configurations consisting of artificial atoms, whose circuit diagrams are however not specified, and an LC resonator or a transmission line, we confirm the absence of SRPTs in the thermal equilibrium following the similar analysis as the no-go theorem for atomic systems. We also show some other configurations where the absence of SRPTs cannot be confirmed.

12 pages, 6 figures

References in corpus (15)

• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Strongly coupled magnons and cavity microwave photons
• Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
• Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
• High Cooperativity Cavity QED with Magnons at Microwave Frequencies
• Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
• Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
• Is there a no-go theorem for superradiant quantum phase transitions in cavity and circuit QED ?
• Collective, Coherent, and Ultrastrong Coupling of 2D Electrons with Terahertz Cavity Photons
• Strong Coupling of a Quantum Oscillator to a Flux Qubit at its Symmetry Point
• Ultrastrong coupling phenomena beyond the Dicke model
• Super-radiant phase transition in superconducting circuit in thermal equilibrium
• Blackbox Quantization of Superconducting Circuits using exact Impedance Synthesis
• Stability of polarizable materials against superradiant phase transition
• Depolarization shift of the superradiant phase transition

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• Breakdown of gauge invariance in ultrastrong-coupling cavity QED
• Cavity quantum electrodynamics in the non-perturbative regime
• Theoretical methods for ultrastrong light-matter interactions
• Resolution of superluminal signalling in non-perturbative cavity quantum electrodynamics
• Implications of gauge freedom for nonrelativistic quantum electrodynamics
• Uniqueness of the Phase Transition in Many-Dipole Cavity Quantum Electrodynamical Systems
• Switchable Superradiant Phase Transition with Kerr Magnons
• Signatures of Dissipation Driven Quantum Phase Transition in Rabi Model
• Resilience of the superradiant phase against ${\mathbf{A}}^2$ effects in the quantum Rabi dimer
• Superradiant phase transitions in the quantum Rabi model: Overcoming the no-go theorem through anisotropy
• A semiclassical analysis of dark state transient dynamics in waveguide circuit QED
• Phase Transitions in the Anisotropic Dicke-Stark Model with $A$-square terms
• Theory of photon condensation in an arbitrary gauge condensed matter cavity model
• Magnonic Superradiant Phase Transition
• Phase Transitions in Light-Matter Systems for Quantum Sensing