Designing reservoirs for 1/t decoherence of a qubit

Details Designing reservoirs for 1/t decoherence of a qubit Designing reservoirs for 1/t decoherence of a qubit

2010-11-03

arxiv.org/abs/1011.0938v1

Physics

Quantum Physics

Scientific paper

10.1142/S1230161211000194

Anomalous decoherence in the Jaynes-Cummings model emerges for a certain class of bosonic reservoirs, described by spectral densities with a band edge frequency coinciding with the qubit transition frequency. The special reservoirs are piecewise similar to those usually adopted in Quantum Optics, i.e., sub-ohmic at low frequencies and inverse power laws at high frequencies. The exact dynamics of the qubit is described analytically through Fox $H$-functions. Over estimated long time scales, decoherence results in inverse power laws with powers decreasing continuously to unity, according to the particular choice of the special reservoir. The engineering reservoir approach is a new way of strongly delaying the decoherence process with possible applications to Quantum Technologies, due to the simple form of the designed reservoirs.

Affiliated with

Also associated with

No associations

Rating

Designing reservoirs for 1/t decoherence of a qubit does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Designing reservoirs for 1/t decoherence of a qubit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Designing reservoirs for 1/t decoherence of a qubit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-603728