Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2004-12-29
Physics
Condensed Matter
Other Condensed Matter
4 pages, 1 figure
Scientific paper
10.1103/PhysRevLett.94.190402
We explore the zero-temperature statics of an atomic Bose-Einstein condensate in which a Feshbach resonance creates a coupling to a second condensate component of quasi-bound molecules. Using a variational procedure to find the equation of state, the appearance of this binding is manifest in a collapsing ground state, where only the molecular condensate is present up to some critical density. Further, an excited state is seen to reproduce the usual low-density atomic condensate behavior in this system, but the molecular component is found to produce an underlying decay, quantified by the imaginary part of the chemical potential. Most importantly, the unique decay rate dependencies on density ($\sim \rho ^{3/2}$) and on scattering length ($\sim a^{5/2}$) can be measured in experimental tests of this theory.
Cragg George E.
Kerman Arthur K.
No associations
LandOfFree
A Complex Chemical Potential: Signature of Decay in a Bose-Einstein Condensate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Complex Chemical Potential: Signature of Decay in a Bose-Einstein Condensate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Complex Chemical Potential: Signature of Decay in a Bose-Einstein Condensate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-319586