Information propagation for interacting particle systems

Details Information propagation for interacting particle systems Information propagation for interacting particle systems

2010-10-21

arxiv.org/abs/1010.4576v2

Phys. Rev. A 84, 032309 (2011)

Physics

Quantum Physics

4 pages, 1 figure, minor changes

Scientific paper

10.1103/PhysRevA.84.032309

We show that excitations of interacting quantum particles in lattice models always propagate with a finite speed of sound. Our argument is simple yet general and shows that by focusing on the physically relevant observables one can generally expect a bounded speed of information propagation. The argument applies equally to quantum spins, bosons such as in the Bose-Hubbard model, fermions, anyons, and general mixtures thereof, on arbitrary lattices of any dimension. It also pertains to dissipative dynamics on the lattice, and generalizes to the continuum for quantum fields. Our result can be seen as a meaningful analogue of the Lieb-Robinson bound for strongly correlated models.

Affiliated with

Also associated with

No associations

Rating

Information propagation for interacting particle 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 Information propagation for interacting particle systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information propagation for interacting particle systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-658849