Macroscopic quantum interference from atomic tunnel arrays

Brian P Anderson, M. A. Kasevich

Research output: Contribution to journalArticle

1200 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1686-1689
Number of pages4
JournalScience
Volume282
Issue number5394
StatePublished - Nov 27 1998
Externally publishedYes

Fingerprint

tunnels
traps
antinodes
interference
atomic interactions
Josephson effect
pulses
Bose-Einstein condensates
falling
standing waves
gravitational fields
potential energy
gravitation
electronics
atoms

ASJC Scopus subject areas

  • General

Cite this

Anderson, B. P., & Kasevich, M. A. (1998). Macroscopic quantum interference from atomic tunnel arrays. Science, 282(5394), 1686-1689.

Macroscopic quantum interference from atomic tunnel arrays. / Anderson, Brian P; Kasevich, M. A.

In: Science, Vol. 282, No. 5394, 27.11.1998, p. 1686-1689.

Research output: Contribution to journalArticle

Anderson, BP & Kasevich, MA 1998, 'Macroscopic quantum interference from atomic tunnel arrays', Science, vol. 282, no. 5394, pp. 1686-1689.
Anderson BP, Kasevich MA. Macroscopic quantum interference from atomic tunnel arrays. Science. 1998 Nov 27;282(5394):1686-1689.
Anderson, Brian P ; Kasevich, M. A. / Macroscopic quantum interference from atomic tunnel arrays. In: Science. 1998 ; Vol. 282, No. 5394. pp. 1686-1689.
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