On the Bose-Einstein Condensation of Exotic Atoms
2006 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 39, no 18, 3889-3895 p.Article in journal (Refereed) Published
The scattering length for hydrogenic atoms with variable lepton mass, ranging from H to p mu, is calculated. The non-trivial sensitivity of the scattering length to non-adiabatic effects is investigated using the coupled-channel approach. The physical conditions for the Bose-Einstein condensation of exotic atoms are expressed in terms of this scattering length, which for the p mu atoms interacting via (3)Sigma(+)(u) potentials, is calculated to be 1.13 x 10(-2) au. The critical temperature for condensing the p mu atoms is estimated to be 0.5 K at a density of 2.2 x 10(20) cm(-3). Under these conditions the phonon velocity in the condensate is 2.2 m s(-1) and the coherence length is nearly 5 mu m.
Place, publisher, year, edition, pages
2006. Vol. 39, no 18, 3889-3895 p.
IdentifiersURN: urn:nbn:se:uu:diva-20044DOI: 10.1088/0953-4075/39/18/018ISI: 000241555800019OAI: oai:DiVA.org:uu-20044DiVA: diva2:47816