| Autor: |
Fialko O; Centre for Theoretical Chemistry and Physics and New Zealand Institute for Advanced Study, Massey University, Private Bag 102904 NSMC, Auckland 0745, New Zealand., Delattre MC, Brand J, Kolovsky AR |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2012 Jun 22; Vol. 108 (25), pp. 250402. Date of Electronic Publication: 2012 Jun 20. |
| DOI: |
10.1103/PhysRevLett.108.250402 |
| Abstrakt: |
Finite topological quantum systems can undergo continuous metastable quantum phase transitions to change their topological nature. Here we show how to nucleate the transition between ring currents and dark soliton states in a toroidally trapped Bose-Einstein condensate. An adiabatic passage to wind and unwind its phase is achieved by explicit global breaking of the rotational symmetry. This could be realized with current experimental technology. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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