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Interferometry with interacting bose-einstein condensates in a double-well potential

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Interferometry with interacting bose-einstein condensates in a double-well potential/ by Tarik Berrada.
Author:	Berrada, Tarik.
Published:	Cham :Springer International Publishing : : 2016.,
Description:	xix, 229 p. :ill., digital ; : 24 cm.;
Contained By:	Springer eBooks
Subject:	Interferometry. -
Online resource:	http://dx.doi.org/10.1007/978-3-319-27233-7
ISBN:	9783319272337

Interferometry with interacting bose-einstein condensates in a double-well potential
Berrada, Tarik.

Interferometry with interacting bose-einstein condensates in a double-well potential[electronic resource] /by Tarik Berrada. - Cham :Springer International Publishing :2016. - xix, 229 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

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.

ISBN: 9783319272337

Standard No.: 10.1007/978-3-319-27233-7doiSubjects--Topical Terms:

643415
Interferometry.

LC Class. No.: QC411

Dewey Class. No.: 535.470287

Interferometry with interacting bose-einstein condensates in a double-well potential
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520 $a 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.
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