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Lieb-Robinson bounds on n-partite connected correlations

MinhTran.png

Speaker

Minh Tran(QuICS/JQI)

Event Type

JQI-QuICS-CMTC Seminar

Date & Time

October 13, 2017, 4:15pm

Where to Attend

CSS 2115

*Snacks and drinks served at 4 pm*

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.