Details

Autor(en) / Beteiligte

• Béguin, J-B
• Bookjans, E M
• Christensen, S L
• Sørensen, H L
• Müller, J H
• Polzik, E S
• Appel, J

Titel

Generation and detection of a sub-Poissonian atom number distribution in a one-dimensional optical lattice

Ist Teil von

• Physical review letters, 2014-12, Vol.113 (26), p.263603-263603, Article 263603

Ort / Verlag

United States

Erscheinungsjahr

2014

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• 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.