Engineering correlation and entanglement dynamics in spin systems

Details Engineering correlation and entanglement dynamics in spin systems Engineering correlation and entanglement dynamics in spin systems

2007-01-10

arxiv.org/abs/quant-ph/0701053v1

Physics

Quantum Physics

4 pages, 4 figures, REVTeX4 format

Scientific paper

10.1103/PhysRevLett.100.180406

We show that the correlation and entanglement dynamics of spin systems can be understood in terms of propagation of spin waves. This gives a simple, physical explanation of the behaviour seen in a number of recent works, in which a localised, low-energy excitation is created and allowed to evolve. But it also extends to the scenario of translationally invariant systems in states far from equilibrium, which require less local control to prepare. Spin-wave evolution is completely determined by the system's dispersion relation, and the latter typically depends on a small number of external, physical parameters. Therefore, this new insight into correlation dynamics opens up the possibility not only of predicting but also of controlling the propagation velocity and dispersion rate, by manipulating these parameters. We demonstrate this analytically in a simple, example system.

Affiliated with

Also associated with

No associations

Rating

Engineering correlation and entanglement dynamics in spin systems 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 Engineering correlation and entanglement dynamics in spin systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engineering correlation and entanglement dynamics in spin systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-448331