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Bulletin of the American Physical Society

Direct Observation of Atomic Number Squeezing in a Degenerate Bose Gas

Mark G. Raizen

Published Mar 14, 2006• 0 citations
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Physical Review Letters•Feb 9, 2007•38 citations
We propose a method to produce a definite number of ground-state atoms by adiabatic reduction of the depth of a potential well that confines a degenerate Bose gas with repulsive interactions. Using a variety of methods, we map out the maximum number of particles that can be supported by the well as a function of the well depth and interaction strength, covering the limiting case of a Tonks gas as well as the mean-field regime. We also estimate the time scales for adiabaticity and discuss the recent observation of atomic number squeezing [Chuu, Phys. Rev. Lett. 95, 260403 (2005)10.1103/PhysRevLett.95.260403].