Asymptotic entanglement in 1D quantum walks with a time-dependent coined

Details Asymptotic entanglement in 1D quantum walks with a time-dependent coined Asymptotic entanglement in 1D quantum walks with a time-dependent coined

2010-12-21

arxiv.org/abs/1012.4566v2

Physics

Quantum Physics

23 pages, 4 figures, accepted for publication in IJMPB. arXiv admin note: text overlap with arXiv:1001.5326 by other authors

Scientific paper

Discrete-time quantum walk evolve by a unitary operator which involves two operators a conditional shift in position space and a coin operator. This operator entangles the coin and position degrees of freedom of the walker. In this paper, we investigate the asymptotic behavior of the coin position entanglement (CPE) for an inhomogeneous quantum walk which determined by two orthogonal matrices in one-dimensional lattice. Free parameters of coin operator together provide many conditions under which a measurement perform on the coin state yield the value of entanglement on the resulting position quantum state. We study the problem analytically for all values that two free parameters of coin operator can take and the conditions under which entanglement becomes maximal are sought.

Affiliated with

Also associated with

No associations

Rating

Asymptotic entanglement in 1D quantum walks with a time-dependent coined 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 Asymptotic entanglement in 1D quantum walks with a time-dependent coined, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymptotic entanglement in 1D quantum walks with a time-dependent coined will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-95314