Generation and detection of a sub-Poissonian atom number distribution in a one-dimensional optical lattice.
Phys Rev Lett
; 113(26): 263603, 2014 Dec 31.
Article
em En
| MEDLINE
| ID: mdl-25615331
ABSTRACT
We demonstrate preparation and detection of an atom number distribution in a one-dimensional atomic lattice with the variance -14 dB below the Poissonian noise level. A mesoscopic ensemble containing a few thousand atoms is trapped in the evanescent field of a nanofiber. The atom number is measured through dual-color homodyne interferometry with a pW-power shot noise limited probe. Strong coupling of the evanescent probe guided by the nanofiber allows for a real-time measurement with a precision of ±8 atoms on an ensemble of some 10(3) atoms in a one-dimensional trap. The method is very well suited for generating collective atomic entangled or spin-squeezed states via a quantum nondemolition measurement as well as for tomography of exotic atomic states in a one-dimensional lattice.
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01-internacional
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MEDLINE
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2014
Tipo de documento:
Article