Thermodynamics and superradiant phase transitions in a three-level Dicke model.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28208428.
- Also identified by DOI 10.1103/PhysRevE.95.012153.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
We analyze the thermodynamic properties of a generalized Dicke model, i.e., a collection of three-level systems interacting with two bosonic modes. We show that at finite temperatures the system undergoes first-order phase transitions only, which is in contrast to the zero-temperature case where a second-order phase transition exists as well. We discuss the free energy and prominent expectation values. The limit of vanishing temperature is discussed as well.