WebApr 29, 2010 · A phase transition describes the sudden change of state of a physical system, such as melting or freezing. Quantum gases provide the opportunity to establish a direct link between experiments and generic models that capture the underlying physics. The Dicke model describes a collective matter-light … WebThe Dicke model exhibits a variety of phase transitions. The quantum phase transition from the normal phase to the super-radiant phase is marked by a dramatic change in the scaling of the

Superradiant phase transition - Wikipedia

The Dicke model is a fundamental model of quantum optics, which describes the interaction between light and matter. In the Dicke model, the light component is described as a single quantum mode, while the matter is described as a set of two-level systems. When the coupling between the light and matter … See more The Dicke model is a quantum mechanical model that describes the coupling between a single-mode cavity and $${\displaystyle N}$$ two-level systems, or equivalently $${\displaystyle N}$$ spin-½ degrees of freedom. The … See more The Dicke model of Eq. 1 assumes that the cavity mode and the two-level systems are perfectly isolated from the external environment. In actual experiments, this assumption is not valid: the coupling to free modes of light can cause the loss of cavity photons and … See more The Dicke model can be generalized by considering the effects of additional terms in the Hamiltonian of Eq. 1. For example, a recent experiment … See more Early studies of the Dicke model considered its equilibrium properties. These works considered the limit of The superradiant … See more Semiclassical limit A phase space for the Dicke model in the symmetric atomic subspace with $${\displaystyle S=N/2}$$ may be constructed by … See more The simplest realization of the Dicke model involves the dipole coupling between two-level atoms in a cavity. In this system, the observation of the superradiant transition is hindered by two possible problems: (1) The bare coupling between atoms and … See more • Jaynes–Cummings model • Superradiance • Superradiant phase transition • Cavity quantum electrodynamics • Open quantum system See more WebWe extend the idea of quantum phase transitions of light in atom-photon system with Dicke-Bose-Hubbard model for arbitrary number of two-level atoms. The formulations of eigenenergies, effective Rabi frequencies, and c… granny smith mod apk

A Simple Phase Transition Model for Metal Passivation Kinetics

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 … WebSep 4, 2024 · In the Dicke model, the light component is described as a single quantum mode, while the matter is described as a set of two-level systems. When the coupling … 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 ... chins for 99 range