WebDec 16, 2009 · A phase transition describes the sudden change of state in a physical system, such as the transition between a fluid and a solid. Quantum gases provide the opportunity to establish a direct link between experiment and generic models which capture the underlying physics. A fundamental concept to describe the collective matter-light … WebA Simple Phase Transition Model for Metal Passivation Kinetics G. L. Griffin Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455 ... where the phase transition between isolated cations and a condensed oxide layer occurs via spinodal decom- position; and the limit of a fully ...
Quantum phase transition and Berry phase in an extended Dicke model …
WebJun 12, 2003 · We investigate the quantum-chaotic properties of the Dicke Hamiltonian; a quantum-optical model that describes a single-mode bosonic field interacting with an ensemble of N two-level atoms. This model exhibits a zero-temperature quantum phase transition in the N → ∞ limit, which we describe exactly in an effective Hamiltonian … WebWe discuss the onset of quantum chaos and thermalization in the two-mode Dicke model, which describes the dipolar interaction between an ensemble of spins and two bosonic modes. The two-mode Dicke model exhibits normal to superradiant quantum phase transition with spontaneous breaking either of a discrete or continuous symmetry. We … porsche new models
Rényi entropy and quantum phase transition in the Dicke model
WebMay 24, 2024 · The Dicke model describes the coupling between a quantized cavity field and a large ensemble of two-level atoms. When the number of atoms tends to infinity, … WebMar 28, 2011 · A short review of recent developments of the Dicke model in quantum optics is presented. The focus is on the model in a cavity at zero temperature and in the … WebWe revisit the Almheiri-Polchinski dilaton gravity model from a two-dimensional (2D) bulk perspective. We describe a peculiar feature of the model, namely the pattern of conformal symmetry breaking u porsche newell coach