Sökning: "Bell inequality"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden Bell inequality.

1. 1. Exploring the Elegant Bell Inequality

   Författare :Irina Dumitru; Ingemar Bengtsson; Marcin Pawłowski; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bell inequality; Symmetric Informationally Complete POVM; Device Independent Certification; teoretisk fysik; Theoretical Physics;

   Sammanfattning : In quantum information, device independent certification is a matter of both practical and fundamental interest. In this thesis, we explore the use of a particular Bell inequality, known as the elegant Bell inequality, in device independent certification. LÄS MER

3. 2. Bell tests and the no-signalling assumption

   Författare :Massimiliano Smania; Mohamed Bourennane; Ingemar Bengtsson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum; quantum optics; Bell tests; CHSH inequality; entanglement; fysik; Physics;

   Sammanfattning : Bell's theorem was originally meant for testing fundamental properties of Nature, namely local realism. However, through the years it has become a powerful device for certifying encryption security, randomness, and entanglement among other properties. LÄS MER

4. 3. Photonic Multipartite Communication : Complexity, measurements and Bell inequalities

   Författare :Hammad Anwer; Mohamed Bourennane; Anna Sanpera; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fysik; Physics;

   Sammanfattning : The interdisciplinary field of quantum communication and quantum information processing merges quantum mechanics, optics, photonics, information processing, and electronics to solve information and communication tasks that are impossible to solve efficiently with classical resources. Here in this thesis experimental demonstrations of some of such tasks are presented. LÄS MER

5. 4. Experiments with Entangled Photons : Bell Inequalities, Non-local Games and Bound Entanglement

   Författare :Muhammad Sadiq; Mohamed Bourennane; Rupert Ursin; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fysik; Physics;

   Sammanfattning : Quantum mechanics is undoubtedly a weird field of science, which violates many deep conceptual tenets of classical physics, requiring reconsideration of the concepts on which classical physics is based. For instance, it permits persistent correlations between classically separated systems, that are termed as entanglement. LÄS MER

7. 5. Studies in the Geometry of Quantum Measurements

   Författare :Irina Dumitru; Ingemar Bengtsson; David Gross; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantum measurements; Bell nequalities; Weyl-Heiseberg group; device-independent certification; symmetric informationally-complete POVM; teoretisk fysik; Theoretical Physics;

   Sammanfattning : Quantum information studies quantum systems from the perspective of information theory: how much information can be stored in them, how much the information can be compressed, how it can be transmitted. Symmetric informationally-Complete POVMs are measurements that are well-suited for reading out the information in a system; they can be used to reconstruct the state of a quantum system without ambiguity and with minimum redundancy. LÄS MER