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C. Orzel,A. K. Tuchman,M. L. Fenselau,M. Yasuda,*M. A. Kasevich
We report manipulation of the atom number statistics associated
with Bose-Einstein condensed atoms confined in an array ofweakly
linked mesoscopic traps. We used the interference of atomsreleased
from the traps as a sensitive probe of these statistics.By controlling
relative strengths of the tunneling rate betweentraps and atom-atom
interactions within each trap, we observedtrap states characterized by
sub-Poissonian number fluctuationsand adiabatic transitions between
these number-squeezed statesand coherent states of the atom field. The
quantum states producedin this work may enable substantial gains in
sensitivity for atominterference-based instruments as well as
fundamental studiesof quantum phase transitions.
Physics Department, Yale University, New Haven, CT 06520, USA.
*
Permanent address: University of Tokyo 2-11-16 Yayoi Bunkyo-Ku
Tokyo, 113-8656, Japan.
Josephson Junction Arrays with Bose-Einstein Condensates.
F. S. Cataliotti, S. Burger, C. Fort, P. Maddaloni, F. Minardi, A. Trombettoni, A. Smerzi, and M. Inguscio (2001)
Science
293, 843-846
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