Authors:
- Nominated as an outstanding Ph.D. thesis by the Vienna University of Technology, Austria
- Presents a matter-wave interferometer for use in precision measurements
- Highlights the potential of BECs and their manipulation in quantum-enhanced metrology
- Includes supplementary material: sn.pub/extras
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (4 chapters)
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Front Matter
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Back Matter
About this book
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.
Authors and Affiliations
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Vienna University of Technology, Inst. of Atomic and Subatomic Physics, Vienna, Austria
Tarik Berrada
About the author
Bibliographic Information
Book Title: Interferometry with Interacting Bose-Einstein Condensates in a Double-Well Potential
Authors: Tarik Berrada
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-3-319-27233-7
Publisher: Springer Cham
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: Springer International Publishing Switzerland 2016
Hardcover ISBN: 978-3-319-27232-0Published: 29 December 2015
Softcover ISBN: 978-3-319-80097-4Published: 27 March 2019
eBook ISBN: 978-3-319-27233-7Published: 17 December 2015
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XIX, 229
Number of Illustrations: 22 b/w illustrations, 67 illustrations in colour
Topics: Quantum Gases and Condensates, Quantum Information Technology, Spintronics, Low Temperature Physics