Inhibition of Decoherence due to Decay in a Continuum
arXiv:quant-ph/0101014 · doi:10.1103/PhysRevLett.86.4271
Abstract
We propose a scheme for slowing down decay into a continuum. We make use of a sequence of ultrashort $2Ï$-pulses applied on an auxiliary transition of the system so that there is a destructive interference between the two transition amplitudes - one before the application of the pulse and the other after the application of the pulse. We give explicit results for a structured continuum. Our scheme can also inhibit unwanted transitions.
11 pages and 4 figures, submitted to Physical Review Letters