Preparation of Ultracold Atom Clouds at the Shot Noise Level

verfasst von

M. Gajdacz, A. J. Hilliard, M. A. Kristensen, P. L. Pedersen, C. Klempt, J. J. Arlt, J. F. Sherson

Abstract

We prepare number stabilized ultracold atom clouds through the real-time analysis of nondestructive images and the application of feedback. In our experiments, the atom number N∼106 is determined by high precision Faraday imaging with uncertainty ΔN below the shot noise level, i.e., ΔN<N. Based on this measurement, feedback is applied to reduce the atom number to a user-defined target, whereupon a second imaging series probes the number stabilized cloud. By this method, we show that the atom number in ultracold clouds can be prepared below the shot noise level.

Organisationseinheit(en)

Institut für Quantenoptik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)

Externe Organisation(en)

Aarhus University

Typ

Artikel

Journal

Physical Review Letters

Band

117

ISSN

0031-9007

Publikationsdatum

12.08.2016

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Physik und Astronomie (insg.)

Elektronische Version(en)

https://doi.org/10.1103/PhysRevLett.117.073604 (Zugang: Geschlossen)
https://doi.org/10.15488/3592 (Zugang: Offen)