Squeezed States in a Bose-Einstein Condensate

See allHide authors and affiliations

Science  23 Mar 2001:
Vol. 291, Issue 5512, pp. 2386-2389
DOI: 10.1126/science.1058149

You are currently viewing the abstract.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


We report manipulation of the atom number statistics associated with Bose-Einstein condensed atoms confined in an array of weakly linked mesoscopic traps. We used the interference of atoms released from the traps as a sensitive probe of these statistics. By controlling relative strengths of the tunneling rate between traps and atom-atom interactions within each trap, we observed trap states characterized by sub-Poissonian number fluctuations and adiabatic transitions between these number-squeezed states and coherent states of the atom field. The quantum states produced in this work may enable substantial gains in sensitivity for atom interference–based instruments as well as fundamental studies of quantum phase transitions.

  • * Permanent address: University of Tokyo 2-11-16 Yayoi Bunkyo-Ku Tokyo, 113-8656, Japan.

View Full Text

Stay Connected to Science