Abstract
Exact diagonalization study on faster rotating Bose-Eistein condensates (BECs) was performed. Two distinct kinds of energy gaps were found: one above the single-vortex state and the other associated with vortex-antivortex pair excitations above the v=1/2 Laughlin state. Furthermore, it was found that higher excited states with L≲N form linear energy bands.
| Original language | English |
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| Pages (from-to) | 140401/1-140401/4 |
| Journal | Physical Review Letters |
| Volume | 91 |
| Issue number | 14 |
| Publication status | Published - 2003 Oct 3 |