Superradiance of cold atoms coupled to a superconducting circuit

Published

June 6, 2011

Author(s)

Daniel Braun, Jonathan Hoffman, Eite Tiesinga

Abstract

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 significanly 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.

Citation

Physical Review A

Volume

83

Pub Type

Journals

Download Paper

https://doi.org/10.1103/PhysRevA.83.062305

Local Download

Keywords

superradiance, ultra-cold atoms, hybird quantum systems, system-bath interactions

Citation

Braun, D. , Hoffman, J. and Tiesinga, E. (2011), Superradiance of cold atoms coupled to a superconducting circuit, Physical Review A, [online], https://doi.org/10.1103/PhysRevA.83.062305, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907772 (Accessed October 11, 2025)