Ockeloen, Caspar Frederik. Quantum metrology with a scanning probe atom interferometer. 2014, PhD Thesis, University of Basel, Faculty of Science.
Official URL: http://edoc.unibas.ch/diss/DissB_10832
Quantum metrology with entangled atoms is particularly useful in measurements with high spatial resolution, since the atom number in the probe volume is limited by collisional losses. I analyze the effect of such density-dependent losses in high-resolution atom interferometry, and show that there is a strict upper limit on the useful number of atoms. Our experimental results indicate that even tighter limits on the particle number and interrogation time may arise from density-dependent dephasing, and provide a starting point for future studies towards the fundamental limits of coherence in Bose-Einstein condensates. Our experimental setup is ideally suited to experimentally address these questions, and provides a promising platform for further studies on quantum metrology and entanglement in many-particle atomic systems.
|Committee Members:||Oberthaler, M.|
|Faculties and Departments:||05 Faculty of Science > Departement Physik > Physik > Experimentelle Nanophysik (Treutlein)|
|Bibsysno:||Link to catalogue|
|Number of Pages:||147 S.|
|Last Modified:||30 Jun 2016 10:55|
|Deposited On:||30 Jun 2014 14:29|
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