On the device-independent approach to quantum physics advances in quantum nonlocality and multipartite entanglement detection Jean-Daniel Bancal

Format:

• Book
• Thesis/Dissertation

Author/Creator:

• Bancal, Jean-Daniel, author.

Series:

• Springer theses 2190-5053
• Springer Theses 2190-5053

Language:

English

Subjects (All):

• Quantum theory.
• Quantum computers.
• Quantum Theory.

Medical Subjects:

• Quantum Theory.

Genre:

• dissertations
• Academic theses

Physical Description:

1 online resource

Place of Publication:

Cham Springer 2014

Summary:

Quantum physics started in the 1920's with wave mechanics and the wave-particle duality. However, the last 20 years have seen a second quantum revolution, centered around non-locality and quantum correlations between measurement outcomes. The associated key property, entanglement, is recognized today as the signature of quantumness. This second revolution opened the possibility of studying quantum correlations without any assumption on the internal functioning of the measurement apparata, the so-called Device-Independent Approach to Quantum Physics. This thesis explores this new approach using the powerful geometrical tool of polytopes. Emphasis is placed on the study of non-locality in the case of three or more parties, where it is shown that a whole new variety of phenomena appear compared to the bipartite case. Genuine multiparty entanglement is also studied for the first time within the device-independent framework. Finally, these tools are used to answer a long-standing open question: could quantum non-locality be explained by influences that propagate from one party to the others faster than light, but that remain hidden so that one cannot use them to communicate faster than light? This would provide a way around Einstein's notion of action at a distance that would be compatible with relativity. However, the answer is shown to be negative, as such influences could not remain hidden

Contents:

• Introduction Bell Tests in Bipartite Scenarios Various Quantum Nonlocality Tests with a Commercial Two-photon Entanglement Source Nonlocality with Three and More Parties Quantifying Multipartite Nonlocality Device-Independent Entanglement Detection Device-Independent Witnesses of Genuine Multipartite Entanglement Quantum Information Put into Practice Finite-Speed Hidden Influences Quantum Non-Locality Based on Finite-Speed Causal Influences Leads to Superluminal Signalling Outlook
• Advances in quantum nonlocality and multipartite entanglement Detection
• Nonlocality with three and more parties
• Device-independent entanglement detection
• Quantum information put into practice
• Finite-speed hidden influences

Notes:

• Ph. D. University of Switzerland (2013?)
• Includes bibliographical references
• Online resource; title from PDF title page (SpringerLink, viewed November 25, 2013)

Other Format:

Print version Bancal, Jean-Daniel. On the Device-Independent Approach to Quantum Physics : Advances in Quantum Nonlocality and Multipartite Entanglement Detection

ISBN:

• 9783319011837
• 3319011839
• 3319011820
• 9783319011820

OCLC:

868077269

Access Restriction:

Restricted for use by site license