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Bose-Einstein Condensation in a Two-Dimensional System with Sixty Bosons |
| BAO Cheng-Guang |
| Department of Physics, Zhongshan University, Guangzhou 510275 |
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| Cite this article: |
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BAO Cheng-Guang 2000 Chin. Phys. Lett. 17 123-125 |
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Abstract A 60-boson system confined on a sphere has been qualitatively studied based on symmetry considerations. The low-lying spectrum is dominated by the ground rotation band based on the fullerene structure. In this band all the L = 1 to L = 5 states are found to be prohibited by symmetry. Therefore, there is a large gap lying between the ground state and the first excited state. The magnitude of this gap, which is associated with the critical temperature of Bose-Einstein condensation, has been evaluated. It is found that, the smaller the radius of the sphere of confinement, the higher the critical temperature.
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| Keywords:
61.46.+w
67.40.-w
03.75.Fi
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Published: 01 February 2000
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