ENGLISH

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

By Christian Groß (auth.)

Book information

Publisher
Springer-Verlag Berlin Heidelberg
Year
2012
ISBN
978-3-642-25636-3, 978-3-642-25637-0
DOI
10.1007/978-3-642-25637-0
Language
english
Format
PDF
Filesize
3 MB (3540432 bytes)
Series
Springer Theses
Edition
1
Pages
116\122
Orientation
yes
Scanned
yes
Time added
2013-08-01 04:00:00
Quantum Gases and Condensates;Measurement Science

Description

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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