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Spin Squeezing and Non-linear Atom Interferometry with Bose-Einstein Condensates [electronic resource] / by Christian Groß.

By: Groß, Christian [author.].
Contributor(s): SpringerLink (Online service).
Material type: materialTypeLabelBookSeries: Springer Theses: Publisher: Berlin, Heidelberg : Springer Berlin Heidelberg, 2012Description: XI, 113p. 58 illus. online resource.Content type: text Media type: computer Carrier type: online resourceISBN: 9783642256370.Subject(s): Physics | Physics | Quantum Gases and Condensates | Measurement Science and InstrumentationDDC classification: 539 Online resources: Click here to access online
Contents:
Introduction -- Spin Squeezing, Entanglement and Quantum Metrology -- Squeezing Two Mean Field Modes of a Bose-Einstein Condensate -- Non-linear Interferometry Beyond the Standard Quantum Limit -- Outlook. - Appendices.
In: Springer eBooksSummary: Interferometry, the most precise measurement technique known today, exploits the wave-like nature of the atoms or photons in the interferometer. As expected from the laws of quantum mechanics, the granular, particle-like features of the individually independent atoms or photons are responsible for the precision limit, the shot noise limit. However this “classical” bound is not fundamental and it is the aim of quantum metrology to overcome it by employing entanglement among the particles. This work reports on the realization of spin-squeezed states suitable for atom interferometry. Spin squeezing was generated on the basis of motional and spin degrees of freedom, whereby the latter allowed the implementation of a full interferometer with quantum-enhanced precision.
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Introduction -- Spin Squeezing, Entanglement and Quantum Metrology -- Squeezing Two Mean Field Modes of a Bose-Einstein Condensate -- Non-linear Interferometry Beyond the Standard Quantum Limit -- Outlook. - Appendices.

Interferometry, the most precise measurement technique known today, exploits the wave-like nature of the atoms or photons in the interferometer. As expected from the laws of quantum mechanics, the granular, particle-like features of the individually independent atoms or photons are responsible for the precision limit, the shot noise limit. However this “classical” bound is not fundamental and it is the aim of quantum metrology to overcome it by employing entanglement among the particles. This work reports on the realization of spin-squeezed states suitable for atom interferometry. Spin squeezing was generated on the basis of motional and spin degrees of freedom, whereby the latter allowed the implementation of a full interferometer with quantum-enhanced precision.

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