| 日時: |
2009-04-21 11:00 - 12:00 |
| 場所: |
研究本館２階２２０室 |
| 会議名: |
7616 : a critical number for emergence |
| 連絡先: |
疋田、hikida at post.kek.jp |
| 講演者: |
Dr. Sang-Woo Kim (CQUeST, Sogang University ) |
| 講演言語: |
英語 |
| アブストラクト: |
We assert, contrary to a common belief, that canonical ensembles with finite number of physical degrees can manifest discontinuous phase transitions featuring a genuine mathematical singularity, provided we keep not volume but pressure constant. As a concrete model, we reconsider a famous elementary system, ideal Bose gas: For exact yet complicated expressions of various thermodynamic quantities in canonical ensemble, we perform numerical computations up to the number of particles one million. We report that a first-order phase transition does emerge if the number of particles is equal to or greater than 7616.
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