04126nam 22007335 450 991025460550332120200704022842.03-319-27233-010.1007/978-3-319-27233-7(CKB)3710000000539393(EBL)4199835(SSID)ssj0001597293(PQKBManifestationID)16297871(PQKBTitleCode)TC0001597293(PQKBWorkID)14886694(PQKB)11698730(DE-He213)978-3-319-27233-7(MiAaPQ)EBC4199835(PPN)190886811(EXLCZ)99371000000053939320151217d2016 u| 0engur|n|---|||||txtccrInterferometry with Interacting Bose-Einstein Condensates in a Double-Well Potential /by Tarik Berrada1st ed. 2016.Cham :Springer International Publishing :Imprint: Springer,2016.1 online resource (244 p.)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053"Doctoral Thesis accepted by Vienna University of Technology, Austria."3-319-27232-2 Includes bibliographical references at the end of each chapters.Introduction -- Theoretical Framework -- Experimental Setup and Techniques -- A Mach-Zehnder Interferometer for Trapped, Interacting Bose-Einstein Condensates -- Outlook: Bosonic Josephson Junctions Beyond the Two-Mode Approximation.This thesis demonstrates a full Mach–Zehnder interferometer with interacting Bose–Einstein condensates confined on an atom chip. It relies on the coherent manipulation of atoms trapped in a magnetic double-well potential, for which the author developed a novel type of beam splitter. Particle-wave duality enables the construction of interferometers for matter waves, which complement optical interferometers in precision measurement devices, both for technological applications and fundamental tests. This requires the development of atom-optics analogues to beam splitters, phase shifters and recombiners. Particle interactions in the Bose–Einstein condensate lead to a nonlinearity, absent in photon optics. This is exploited to generate a non-classical state with reduced atom-number fluctuations inside the interferometer. This state is then used to study the interaction-induced dephasing of the quantum superposition. The resulting coherence times are found to be a factor of three longer than expected for coherent states, highlighting the potential of entanglement as a resource for quantum-enhanced metrology.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Phase transformations (Statistical physics)Condensed materialsQuantum computersSpintronicsLow temperature physicsLow temperaturesQuantum Gases and Condensateshttps://scigraph.springernature.com/ontologies/product-market-codes/P24033Quantum Information Technology, Spintronicshttps://scigraph.springernature.com/ontologies/product-market-codes/P31070Low Temperature Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P25130Phase transformations (Statistical physics).Condensed materials.Quantum computers.Spintronics.Low temperature physics.Low temperatures.Quantum Gases and Condensates.Quantum Information Technology, Spintronics.Low Temperature Physics.535.470287Berrada Tarikauthttp://id.loc.gov/vocabulary/relators/aut805204MiAaPQMiAaPQMiAaPQBOOK9910254605503321Interferometry with Interacting Bose-Einstein Condensates in a Double-Well Potential1807718UNINA