Abstract

Lieb and Robinson provided bounds on how fast bipartite connected correlations can arise in systems with only short-range interactions. We generalize Lieb-Robinson bounds on bipartite connected correlators to multipartite connected correlators. The bounds imply that an n-partite connected correlator can reach unit value in constant time. Remarkably, the bounds also allow for an n-partite connected correlator to reach a value that is exponentially large with system size in constant time, a feature which stands in contrast to bipartite connected correlations. We provide explicit examples of such systems.

Publication Details
Publication Type
Journal Article
Year of Publication
2017
Volume
96
DOI
10.1103/PhysRevA.96.052334
Journal
Physical Review A
Download the Publication
Contributors
Date Published
11/2017