Affiliation:
1. Physics Department, Yale University, New Haven, CT 06520, USA.
Abstract
Interference of atomic de Broglie waves tunneling from a vertical array of macroscopically populated traps has been observed. The traps were located in the antinodes of an optical standing wave and were loaded from a Bose-Einstein condensate. Tunneling was induced by acceleration due to gravity, and interference was observed as a train of falling pulses of atoms. In the limit of weak atomic interactions, the pulse frequency is determined by the gravitational potential energy difference between adjacent potential wells. The effect is closely related to the ac Josephson effect observed in superconducting electronic systems.
Publisher
American Association for the Advancement of Science (AAAS)
Reference54 articles.
1. Possible new effects in superconductive tunnelling
2. ; P. Anderson Basic Notions of Condensed Matter Physics (Benjamin/Cummings Menlo Park CA 1984) and references therein.
3. For recent interference experiments with coupled superfluid 3 He resevoirs see
4. Pereverzev S., Loshak A., Backhaus S., Davis J., Packard R., Nature 388, 449 (1997);
5. Backhaus S., Pereverzev S. V., Loshak A., Davis J. C., Packard R. E., Science 278, 1435 (1997).
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