



01304nas a2200145   4500008004100000245006900041210006900110260001300179490000700192520086300199100001801062700002201080700001901102856003701121       2011                        eng d00aSuperradiance of cold atoms coupled to a superconducting circuit0 aSuperradiance of cold atoms coupled to a superconducting circuit  c2011/6/60 v833 a  We investigate superradiance of an ensemble of atoms coupled to an integrated
superconducting LC-circuit. Particular attention is paid to the effect of
inhomogeneous coupling constants. Combining perturbation theory in the
inhomogeneity and numerical simulations we show that inhomogeneous coupling
constants can significantly affect the superradiant relaxation process.
Incomplete relaxation terminating in "dark states" can occur, from which the
only escape is through individual spontaneous emission on a much longer time
scale. The relaxation dynamics can be significantly accelerated or retarded,
depending on the distribution of the coupling constants. On the technical side,
we also generalize the previously known propagator of superradiance for
identical couplings in the completely symmetric sector to the full
exponentially large Hilbert space.
1 aBraun, Daniel1 aHoffman, Jonathan1 aTiesinga, Eite  uhttp://arxiv.org/abs/1101.5300v1