Decoherence in a system of many two--level atoms

Details Decoherence in a system of many two--level atoms Decoherence in a system of many two--level atoms

2005-11-29

arxiv.org/abs/quant-ph/0511262v2

Phys. Rev. Lett. 96, 230502 (2006)

Physics

Quantum Physics

replaced with published version

Scientific paper

10.1103/PhysRevLett.96.230502

I show that the decoherence in a system of $N$ degenerate two--level atoms interacting with a bosonic heat bath is for any number of atoms $N$ governed by a generalized Hamming distance (called ``decoherence metric'') between the superposed quantum states, with a time--dependent metric tensor that is specific for the heat bath.The decoherence metric allows for the complete characterization of the decoherence of all possible superpositions of many-particle states, and can be applied to minimize the over-all decoherence in a quantum memory. For qubits which are far apart, the decoherence is given by a function describing single-qubit decoherence times the standard Hamming distance. I apply the theory to cold atoms in an optical lattice interacting with black body radiation.

Affiliated with

Also associated with

No associations

Rating

Decoherence in a system of many two--level atoms 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 Decoherence in a system of many two--level atoms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoherence in a system of many two--level atoms will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-430504