Sökning: "Bell tests"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Bell tests.
1. Bell tests and the no-signalling assumption
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
2. Photonic multipartite entanglement : Generation, measurement and applications
Sammanfattning : We are currently witnessing a fundamental change in the field of quantum information, whereby protocols and experiments previously performed in university labs are now being implemented in real-world scenarios, and a strong commercial push for new and reliable applications is contributing significantly in advancing fundamental research. In this thesis and related included papers, I first look at a keystone of quantum science, Bell's theorem. LÄS MER
3. A reliability study of electronic components and electret foils, including latent failures due to submission to electrostatic discharges in a historical retrospective
Sammanfattning : This thesis deals with the reliability and life-time ofelectronic components and ways to determine these factors.Plastic encapsulated and open test circuits were assessed atdifferent humidity and temperature conditions. From the resultsan acceleration factor could be derived using the Arrheniusrelation. LÄS MER
4. Photonic quantum information and experimental tests of foundations of quantum mechanics
Sammanfattning : Entanglement is a key resource in many quantum information schemes and in the last years the research on multi-qubit entanglement has drawn lots of attention. In this thesis the experimental generation and characterisation of multi-qubit entanglement is presented. Specifically we have prepared entangled states of up to six qubits. LÄS MER
5. Multiparty Quantum Communication and fs-laser Written Integrated Optics Circuits
Sammanfattning : Quantum information science, the rapidly developing interdisciplinary field, gives power to the information and communications technologies (ICT) by providing secure communication, precision measurements, ultra-powerful simulation and ultimately computation. It is well known that photons are an ideal candidate for encoding the quantum bit, or "qubit", in quantum information and specially for quantum communication. LÄS MER
