Published August 2007
| Version v1
Journal article
Flow equations for the BCS-BEC crossover
- 1. Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck (Austria)
- 2. Institut fuer Theoretische Physik, Philosophenweg 16, D-69120 Heidelberg (Germany)
Description
The functional renormalization group is used for the BCS-BEC crossover in gases of ultracold fermionic atoms. In a simple truncation, we see how universality and an effective theory with composite bosonic diatom states emerge. We obtain a unified picture of the whole phase diagram. The flow reflects different effective physics at different scales. In the BEC limit as well as near the critical temperature, it describes an interacting bosonic theory
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.76.021602;
- arXiv
- arXiv:cond-mat/0701198v2;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 76
- Journal Issue
- 2
- Journal Page Range
- p. 021602-021602.4
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39033649
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ATOMS; BCS THEORY; BOSE-EINSTEIN CONDENSATION; CRITICAL TEMPERATURE; DIATOMS; EQUATIONS; FERMIONS; GASES; INTERACTIONS; PHASE DIAGRAMS; RENORMALIZATION; SUPERFLUIDITY; TEMPERATURE RANGE 0000-0013 K
- Descriptors DEC
- ALGAE; CHROMOPHYCOTA; DIAGRAMS; FLUIDS; INFORMATION; PHYSICAL PROPERTIES; PLANTS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2007 The American Physical Society