Dicke model phase transition
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 rotating wave approximation. Topics discussed include spectroscopic structures, the giant quantum oscillator, entanglement and phase transitions. 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 …
Dicke model phase transition
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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 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 …
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 … 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
WebAug 4, 2024 · In view of this lattice model with the Z 2 symmetry, its quantum phase transitions behavior can be controlled by this periodic phonon-phonon interactions in the momentum space. This investigation may be considered as a fresh attempt on manipulating the critical behaviors of the collective spins through the external mechanical method. WebSep 13, 2024 · The 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 …
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 …
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 … theory revenueWebMar 2, 2015 · Here, we study a dynamical phase transition in the open Dicke model emulated in an atom–cavity system prepared near zero temperature. The Dicke model is a paradigmatic scenario of quantum many-body physics, still subject to intensive research despite a history more than half a century long (17 –28). theory reversible jacketWebNov 7, 2013 · Viewed this way, there is a clear relation between the phase transitions in the JCHM and the Dicke–Hepp–Lieb [31–34] superradiance phase transition of the Tavis–Cummings model , which is frequently referred to as the Dicke model 3. This section discusses how theories developed for the Dicke model can be used to understand the … sh script sourceWebMar 1, 1973 · A system of N two-level atoms interacting with a quantized field, the so-called Dicke model of superradiance, is studied. By making use of a set of Glauber's … theory review chartWebWe 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 theory reviewWebNov 30, 2024 · The Dicke model, which describes the coupling of an ensemble of spins to a harmonic oscillator, is known for its superradiant phase transition, which can both be observed in the ground state in a purely Hamiltonian setting, as well as in the steady state of an open-system Dicke model with dissipation. We demonstrate that, in addition, the … theory restaurant \u0026 loungeWebNov 5, 2024 · This phase transition can be either the first-order or the second-order type depending on whether the total angular momentum changes across the phase diagram. … theory revising