Proposed Realization of the Dicke-Model Quantum Phase Transition in an Optical Cavity QED System

By F. Dimer, B. Estienne, A. Parkins, H. Carmichael. 2006

395 citations recorded by the source corpus.

The Dicke model describing an ensemble of two-state atoms interacting with a single quantized mode of the electromagnetic field (with omission of the Â^2 term) exhibits a zero-temperature phase transition at a critical value of the dipole coupling strength. We propose a scheme based on multilevel atoms and cavity-mediated Raman transitions to realize an effective Dicke model operating in the phase transition regime. Optical light from the cavity carries signatures of the critical behavior, which is analyzed for the thermodynamic limit where the number of atoms is very large.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/9de0318752c3b551ef81f7feb8caeaa555a238a6

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance (2018, background): “(25) is fully justified in effective models [57, 76, 78, 99, 100].”
Self-organization of a Bose-Einstein condensate in an optical cavity (2008, methodology): “In this system, for example, the realization of the Dicke-model quantum phase transition is proposed and seems feasible [28,29,30] by means of using Raman-type transitions in multilevel atoms.”
Nonequilibrium phase transition in a spin-1 Dicke model (2016, methodology): “1(b) is similar to that given in [17] and we summarize the relevant results.”
Quantum trajectories and open many-body quantum systems (2014, background): “Recent observation of the Dicke phase transition [146, 147] and related optomechanical effects, including the detection of quantised motion and non-classical output light [148, 150] has opened new possibilities for studying many-body dissipative dynamics.”
Quantum many‐body phenomena in coupled cavity arrays (2008, methodology): “Furthermore quantum phase transitions of Dicke-model in cavity QED have been analysed [ 82 ].”
Breakdown of Photon Blockade: A Dissipative Quantum Phase Transition in Zero Dimensions (2013, background): “[44] and [48]—of the minimal coupling Hamiltonian engineered, in the interaction picture, from a coherently driven Raman configuration [49].”
Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition (2020, background): “[58] F.”
Keldysh field theory for driven open quantum systems (2015, methodology): “This was inspired by a theoretical proposal using two balanced Raman channels between different internal atomic states inside an optical cavity, which reduced the effective level splitting of the internal states to much lower energy scales [129].”