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Quantum Initiative: Quantum Lunch
The Quantum Lunch is regularly held on Thursdays in the Theoretical Division Conference Room, TA-3, Building 123, Room 121.
The organizing committee includes Malcolm Boshier (P-21), Lukasz Cincio (T-4), Diego Dalvit (T-4), Changhyun Ryu (P-21) , Nikolai Sinitsyn (T-4), Rolando Somma (T-4), Yigit Subasi (T-4), Christopher Ticknor (T-1), and Wojciech Zurek (T-4).
For more information, or to nominate a speaker, contact Yigit Subasi or Lukasz Cincio.
To add your name to the Quantum Lunch email list, contact Kacy Hopwood.
Thursday August 17, 2017
12:30 PM - 2:00 PM
Speaker: Davide Girolami (LANL, T-4)
Technical Host: Lukasz Cincio
TOPIC: Quantifying genuine multipartite correlations and their pattern complexity
Abstract
We propose an information-theoretic framework to quantify many-body correlations in classical and quantum systems, answering questions such as: what is the amount of seven-partite correlations in a given state of ten particles? We identify measures of genuine multipartite correlations, i.e. statistical dependencies which cannot be ascribed to bipartite correlations, satisfying a set of desirable properties. Inspired by ideas developed in complexity science, we then introduce the concept of weaving to classify states with an equal amount of total correlations, but displaying di fferent patterns of multipartite correlations. The weaving of a state is defined as the weighted sum of correlations of any order. Weaving measures are good descriptors of the complexity of correlation structures in multipartite systems.
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