Published February 1, 2005
| Version v1
Journal article
BCS-BEC crossover with a finite-range interaction
Creators
- 1. Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE (United Kingdom)
- 2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- 3. National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Description
We study the crossover from BEC to BCS pairing for dilute systems but with a realistic finite-range interaction. We exhibit the changes in the excitation spectrum that provide a clean qualitative distinction between the two limits. We also study how the dilute system converges to the results from a zero-range pseudopotential derived by Leggett
Additional details
Identifiers
- DOI
- 10.1103/PhysRevB.71.064513;
- arXiv
- arXiv:cond-mat/0410131v1;
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 71
- Journal Issue
- 6
- Journal Page Range
- p. 064513-064513.6
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36103033
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- BCS THEORY; BOSE-EINSTEIN CONDENSATION; EXCITATION; FERMIONS; FINITE-RANGE INTERACTIONS; SPECTRA
- Descriptors DEC
- ENERGY-LEVEL TRANSITIONS; INTERACTIONS
Optional Information
- Notes
- (c) 2005 The American Physical Society