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Q: Fachverband Quantenoptik und Photonik
Q 11: Quantum Information (Concepts and Methods) I
Q 11.5: Talk
Monday, March 11, 2019, 15:00–15:15, S HS 001 Chemie
Quantum coherence in composite systems — •Jan Sperling1, Elizabeth Agudelo2, and Armando Perez-Leija3 — 1Applied Physics, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany — 2QSTAR, INO-CNR and LENS, Largo Enrico Fermi 2, I-50125 Firenze, Italy — 3Max-Born-Institut, Max-Born-Str. 2A, 12489 Berlin, Germany
Quantum correlations between different systems play a crucial role for implementing quantum information technologies. In this contribution, we discuss a general framework for studying quantum phenomena in composite systems. In particular, we focus on correlations that are incompatible with classical models, enabling the verification of quantum effects. Our studies include the certification of quantum coherence between indistinguishable particles and in hybrid systems, consisting of a discrete-variable and a continuous-variable subsystem. Moreover, the fundamental notion of quantum entanglement is analyzed along with and compared to other forms of quantum correlations in multipartite systems. While mainly focusing on theoretical advances, we also report on recent experimental implementations.