Physics NotePublished
Quantum phase transitions in an interacting atom-molecule boson model
G. Santos; A. Foerster; J.R. Links; E. Mattei; S.R. Dahmen
Publication details
- Authors
- G. Santos; A. Foerster; J.R. Links; E. Mattei; S.R. Dahmen
- Type
- Physics Note
- Status
- Published
- Publication date
- 27/11/2014
- Description
- We study the quantum phase transitions of a model that describes the interconversion of inter- acting bosonic atoms and molecules. Using a classical analysis, we identify a threshold coupling line separating a molecular phase and a mixed phase. Through studies of the energy gap, von Neumann entanglement entropy, and fidelity, we give evidence that this line is associated to a boundary line in the ground-state phase diagram of the quantum system.
- Year
- 2014
- Number
- CBPF-NF-009/14
- Linked to a thesis
- No
- Linked to a grant
- No