Dicke quantum spin glass of atoms and photons
Quantum Gases
2012-01-04 v2 Disordered Systems and Neural Networks
Quantum Physics
Abstract
Recent studies of strongly interacting atoms and photons in optical cavities have rekindled interest in the Dicke model of atomic qubits coupled to discrete photon cavity modes. We study the multimode Dicke model with variable atom-photon couplings. We argue that a quantum spin glass phase can appear, with a random linear combination of the cavity modes superradiant. We compute atomic and photon spectral response functions across this quantum phase transition, both of which should be accessible in experiment.
Keywords
Cite
@article{arxiv.1109.2119,
title = {Dicke quantum spin glass of atoms and photons},
author = {Philipp Strack and Subir Sachdev},
journal= {arXiv preprint arXiv:1109.2119},
year = {2012}
}
Comments
4 pages, 3 figures, v2: described quantum optics set-up in more detail; extended discussion on photon correlation functions and experimental signatures; added references