Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Superradiance of cold atoms coupled to a superconducting circuit



Daniel Braun, Jonathan Hoffman, Eite Tiesinga


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.
Physical Review A


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


Braun, D. , Hoffman, J. and Tiesinga, E. (2011), Superradiance of cold atoms coupled to a superconducting circuit, Physical Review A, [online],, (Accessed May 20, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created June 5, 2011, Updated October 12, 2021