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Lieb-Robinson bounds on n-partite connected correlations

October 13, 2017 - 4:00pm
Speaker: 
Minh Tran
Institution: 
QuICS/JQI

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.

 
There will be snacks and drinks at 4:00 and the talk will start at 4:15
2115 Atlantic Building