抄録
We report the experimental observation of rectified momentum transport for a Bose-Einstein condensate kicked at the Talbot time (quantum resonance) by an optical standing wave. Atoms are initially prepared in a superposition of the 0 and -2 kl momentum states using an optical π/2 pulse. By changing the relative phase of the superposed states, a momentum current in either direction along the standing wave may be produced. We offer an interpretation based on matter-wave interference, showing that the observed effect is uniquely quantum.
| 本文言語 | English |
|---|---|
| 論文番号 | 043002 |
| ジャーナル | Physical review letters |
| 巻 | 99 |
| 号 | 4 |
| DOI | |
| 出版ステータス | Published - 25 7月 2007 |