Spin Squeezing and Non-linear Atom Interferometry with Bose-Einstein Condensates

✍ Scribed by Christian Groß (auth.)

Publisher: Springer-Verlag Berlin Heidelberg
Year: 2012
Tongue: English
Leaves: 122
Series: Springer Theses
Edition: 1
Category: Library

No coin nor oath required. For personal study only.

✦ Synopsis

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.

✦ Table of Contents

Front Matter....Pages i-xi
Introduction....Pages 1-4
Spin Squeezing, Entanglement and Quantum Metrology....Pages 5-23
Squeezing Two Mean Field Modes of a Bose–Einstein Condensate....Pages 25-58
Non-linear Interferometry Beyond the Standard Quantum Limit....Pages 59-92
Outlook....Pages 93-94
Back Matter....Pages 95-113

✦ Subjects

Quantum Gases and Condensates;Measurement Science and Instrumentation

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