BCS-BEC crossover in a relativistic superfluid and its significance to quark matter
Abstract
The character change of a superfluid state due to the variation of the attractive force is investigated in the relativistic framework with a massive fermion. Two crossovers are found. One is a crossover from the usual BCS state to the Bose-Einstein condensation (BEC) of bound fermion pairs. The other is from the BEC to the relativistic Bose-Einstein condensation (RBEC) of nearly massless bound pairs where antiparticles as well as particles dominate the thermodynamics. Possible realization of the BEC and RBEC states in the quark matter is also pointed out.
- Authors:
-
- Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)
- Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)
- Publication Date:
- OSTI Identifier:
- 20713882
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. D, Particles Fields
- Additional Journal Information:
- Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.096004; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANTIPARTICLES; BCS THEORY; BOSE-EINSTEIN CONDENSATION; FERMIONS; QUARK MATTER; RELATIVISTIC RANGE; SUPERFLUIDITY; THERMODYNAMICS
Citation Formats
Nishida, Yusuke, and Abuki, Hiroaki. BCS-BEC crossover in a relativistic superfluid and its significance to quark matter. United States: N. p., 2005.
Web. doi:10.1103/PhysRevD.72.096004.
Nishida, Yusuke, & Abuki, Hiroaki. BCS-BEC crossover in a relativistic superfluid and its significance to quark matter. United States. https://doi.org/10.1103/PhysRevD.72.096004
Nishida, Yusuke, and Abuki, Hiroaki. 2005.
"BCS-BEC crossover in a relativistic superfluid and its significance to quark matter". United States. https://doi.org/10.1103/PhysRevD.72.096004.
@article{osti_20713882,
title = {BCS-BEC crossover in a relativistic superfluid and its significance to quark matter},
author = {Nishida, Yusuke and Abuki, Hiroaki},
abstractNote = {The character change of a superfluid state due to the variation of the attractive force is investigated in the relativistic framework with a massive fermion. Two crossovers are found. One is a crossover from the usual BCS state to the Bose-Einstein condensation (BEC) of bound fermion pairs. The other is from the BEC to the relativistic Bose-Einstein condensation (RBEC) of nearly massless bound pairs where antiparticles as well as particles dominate the thermodynamics. Possible realization of the BEC and RBEC states in the quark matter is also pointed out.},
doi = {10.1103/PhysRevD.72.096004},
url = {https://www.osti.gov/biblio/20713882},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}
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