2020/09/04 by Mor M. Roses, Emanuele G. Dalla Torre · 1 citation
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Cold Atom Physics and Bose-Einstein Condensates #Quantum Mechanics and Applications
paper · pdf · doi:10.1371/journal.pone.0235197
openalex publication_date 2020/09/04 · openalex created_date 2021/08/30 · openalex updated_date 2026/08/04
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 crosses a critical value, the Dicke model shows a mean-field phase transition to a superradiant phase. This transition belongs to the Ising universality class and was realized experimentally in cavity quantum electrodynamics experiments. Although the superradiant transition bears some analogy with the lasing instability, these two transitions belong to different universality classes.