Phys. Rev. A 65, 033625 (2002) [7 pages]Dynamically turning off interactions in a two-component condensateReceived 23 October 2001; published 1 March 2002 We propose a mechanism to change the interaction strengths of a two-component condensate. It is shown that the application of π/2 pulses allows us to alter the effective interspecies-interaction strength as well as the effective interaction strength between particles of the same kind. This mechanism provides a simple method to transform spatially stable condensates into unstable ones and vice versa. It also provides a means to store a squeezed spin state by turning off the interaction for the internal states and thus allows to gain control over many-body entangled states. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.033625
DOI:
10.1103/PhysRevA.65.033625
PACS:
03.75.Fi, 42.50.-p, 42.50.Ct
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