Recent Experiments with Bose-Condensed Gases at JILA
D.S. Hall, J.R. Ensher, D.S. Jin, M.R. Matthews, C.E. Wieman, and E.A., Cornell
TL;DR
This paper discusses experiments with overlapping Bose-Einstein condensates of rubidium-87 in different hyperfine states, focusing on conditions for magnetic moment equality and implications for new experimental possibilities.
Contribution
It introduces a method to realize and analyze overlapping BECs in different hyperfine states with nearly identical magnetic moments, enabling novel experimental setups.
Findings
Successful creation of overlapping BECs in different hyperfine states
Conditions for magnetic moment equality in TOP traps
Potential for new experiments with mixed condensates
Abstract
We consider a binary mixture of two overlapping Bose-Einstein condensates in two different hyperfine states of \Rb87 with nearly identical magnetic moments. Such a system has been simply realized through application of radiofrequency and microwave radiation which drives a two-photon transition between the two states. The nearly identical magnetic moments afford a high degree of spatial overlap, permitting a variety of new experiments. We discuss some of the conditions under which the magnetic moments are identical, with particular emphasis placed on the requirements for a time-averaged orbiting potential (TOP) magnetic trap.
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