| 日時: |
2005-10-03 14:00 - |
| 場所: |
研究本館3階321号室 |
| 会議名: |
BCS-BEC crossover in relativistic superfluid |
| 連絡先: |
丹後 |
| 講演者: |
西田祐介氏 (東京大学) |
| 講演言語: |
日本語 |
| アブストラクト: |
Character change of the 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 anti-particles as well as particles dominate the thermodynamics. Possible realization of the BEC and RBEC states in the quark matter is also pointed out.
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