Characterizing Entanglement and Quantum Correlations Constrained by Symmetry

Jordi Tura i Brugués (Autor)

Buch | Softcover

XXV, 237 Seiten

2018 | 1. Softcover reprint of the original 1st ed. 2017
Springer International Publishing (Verlag)
978-3-319-84191-5 (ISBN)

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This thesis focuses on the study and characterization of entanglement and nonlocal correlations constrained under symmetries. It includes original results as well as detailed methods and explanations for a number of different threads of research: positive partial transpose (PPT) entanglement in the symmetric states; a novel, experimentally friendly method to detect nonlocal correlations in many-body systems; the non-equivalence between entanglement and nonlocality; and elemental monogamies of correlations. Entanglement and nonlocal correlations constitute two fundamental resources for quantum information processing, as they allow novel tasks that are otherwise impossible in a classical scenario. However, their elusive characterization is still a central problem in quantum information theory. The main reason why such a fundamental issue remains a formidable challenge lies in the exponential growth in complexity of the Hilbert space as well as the space of multipartite correlations. Physical systems of interest, on the other hand, display symmetries that can be exploited to reduce this complexity, opening the possibility that some of these questions become tractable for such systems.

Dr. Jordi Tura i Brugués graduated simultaneously in Mathematics and Telecommunication Engineering at the Polytechnic University of Catalonia, under an intensive program offered by the Center for Interdisciplinary Studies. He obtained his PhD at ICFO - The Institute of Photonic Sciences, working in the Quantum Optics Theory group, under the supervision of Prof. Dr. Maciej Lewenstein and Dr. Remigiusz Augusiak. His research there focused on the characterization of entanglement and quantum correlations under symmetries. Currently, he is working as a postdoctoral researcher in the Theory Division of the Max Planck Institute of Quantum Optics in Garching, with Prof. Dr. Ignacio Cirac.

Introduction.- Background.- PPT Entangled Symmetric States.- Nonlocality in Multipartite Quantum States.- Relating Entanglement and Nonlocality.- Atomic Monogamies of Correlations.- Conclusions and Outlook.

Erscheinungsdatum	05.03.2022
Reihe/Serie	Springer Theses
Zusatzinfo	XXV, 237 p. 17 illus., 8 illus. in color.
Verlagsort	Cham
Sprache	englisch
Maße	155 x 235 mm
Gewicht	409 g
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
	Naturwissenschaften ► Physik / Astronomie ► Quantenphysik
	Naturwissenschaften ► Physik / Astronomie ► Theoretische Physik
Schlagworte	Bell Correlations in Multipartite Systems • Entanglement Characterization • Entanglement Witnesses • Monogamies of Correlations • Multipartite PPT • Nonlocality in Many-Body Quantum Systems • PPT Symmetric Qubits • Symmetry Constraints on Quantum Correlations • Two-Body Correlators
ISBN-10	3-319-84191-2 / 3319841912
ISBN-13	978-3-319-84191-5 / 9783319841915
Zustand	Neuware