SAMOP 2023 – scientific programme

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QI: Fachverband Quanteninformation

QI 25: Quantum Entanglement II

QI 25.6: Talk

Thursday, March 9, 2023, 12:15–12:30, B302

Bipartite entanglement and the arrow of time — •Markus Frembs — Griffith University, Gold Coast, Australia

We provide a new perspective on the close relationship between entanglement and time. Our main focus is on bipartite entanglement, where this connection is foreshadowed both in the positive partial transpose criterion due to Peres [A. Peres, Phys. Rev. Lett., 77, 1413 (1996)] and in the classification of quantum within more general non-signalling bipartite correlations [M. Frembs and A. Döring, arXiv:2204.11471]. Extracting the relevant common features, we identify a necessary and sufficient condition for bipartite entanglement in terms of a compatibility condition with respect to time orientations in local observable algebras, which express the dynamics in the respective subsystems. We discuss the relevance of the latter in the broader context of von Neumann algebras and the thermodynamical notion of time naturally arising within the latter.

See arXiv:2207.00024 for details.