Qubit Disentanglement and Decoherence via Dephasing

Details Qubit Disentanglement and Decoherence via Dephasing Qubit Disentanglement and Decoherence via Dephasing

2003-05-14

arxiv.org/abs/quant-ph/0305078v2

Phys. Rev. B 68, 165322 (2003)

Physics

Quantum Physics

REVTeX, 9 pages, 1 figure, v2 with minor changes, reference added

Scientific paper

10.1103/PhysRevB.68.165322

We consider whether quantum coherence in the form of mutual entanglement between a pair of qubits is susceptible to decay that may be more rapid than the decay of the coherence of either qubit individually. An instance of potential importance for solid state quantum computing arises if embedded qubits (spins, quantum dots, Cooper pair boxes, etc.) are exposed to global and local noise at the same time. Here we allow separate phase-noisy channels to affect local and non-local measures of system coherence. We find that the time for decay of the qubit entanglement can be significantly shorter than the time for local dephasing of the individual qubits.

Affiliated with

Also associated with

No associations

Rating

Qubit Disentanglement and Decoherence via Dephasing 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 Qubit Disentanglement and Decoherence via Dephasing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Qubit Disentanglement and Decoherence via Dephasing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-81243