[qmeets talk] Multipartite Quantum Resources and Where to Find Them

Abstract: Quantum correlations between multiple parties are a central ingredient for many quantum technologies, with applications in quantum communication, quantum computation, and quantum metrology, amongst others. However, while multipartite entanglement is a generic feature of many-body systems, unraveling the entanglement structure of a given quantum system is generally difficult, both in theory and in practice. In this talk, we will first give an introduction to the different forms of entanglement between several parties. Then we discuss the phenomenon of superactivation: Two or more copies of a quantum state can be resources, where a single copy is not. Focusing on genuine multipartite entanglement (GME) as a resource, we give an overview of recent theoretical and experimental advances in studying the corresponding superactivation phenomenon, and the related challenges for the detection of GME in practical setups.

Speakers: Otfried Gühne and Nicolai Friis

[Online seminar]
Format: Each talk will be 20 + 10 minutes, followed by 15 minutes of general discussion.

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