Comment on "Superradiant Phase Transitions and the Standard Description of Circuit QED"

Abstract

A Comment on the Letter by O. Viehmann, J. von Delft, and F. Marquardt [Phys. Rev. Lett. {\bf 107}, 113602 (2011)].

References in corpus (3)

• Is there a no-go theorem for superradiant quantum phase transitions in cavity and circuit QED ?
• Superradiant Phase Transitions and the Standard Description of Circuit QED
• Phase transitions and dark-state physics in two-color superradiance

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• Spectral Classification of Coupling Regimes in the Quantum Rabi Model
• Theoretical methods for ultrastrong light-matter interactions
• Comparative quantum and semi-classical analysis of Atom-Field Systems I: density of states and excited-state quantum phase transitions
• Super-radiant phase transition in superconducting circuit in thermal equilibrium
• Superradiant phase transition in electronic systems and emergent topological phases
• Fragmented Superradiance of a Bose-Einstein Condensate in an Optical Cavity
• Polariton condensation with saturable molecules dressed by vibrational modes
• Ancillary qubit spectroscopy of cavity (circuit) QED vacua
• Superradiant phase transitions with three-level systems
• Uniqueness of the Phase Transition in Many-Dipole Cavity Quantum Electrodynamical Systems
• Origin and Implications of $A^2$-like Contribution in the Quantization of Circuit-QED Systems
• Switchable Superradiant Phase Transition with Kerr Magnons
• Depolarization shift of the superradiant phase transition
• Superradiant phase transition in a model of three-level-lambda systems interacting with two bosonic modes
• A non-perturbative no-go theorem for photon condensation in approximate models
• Circuit configurations which can/cannot show super-radiant phase transitions
• First-order photon condensation in magnetic cavities: A two-leg ladder model
• Signatures of the $A^2$ term in ultrastrongly-coupled oscillators
• Probing the diamagnetic term in light-matter interaction
• Thermodynamics and Superradiant Phase Transitions in a three-level Dicke Model
• Superradiant phase transitions in the quantum Rabi model: Overcoming the no-go theorem through anisotropy
• Fidelity, susceptibility and critical exponents in the Dicke model
• Phase Transitions in the Anisotropic Dicke-Stark Model with $A$-square terms
• Exploring global symmetry-breaking superradiant phase via phase competition
• Magnonic Superradiant Phase Transition
• Heisenberg-Langevin Formalism For Open Circuit-QED Systems