Preparation of Ultracold Atom Clouds at the Shot Noise Level

authored by

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.

Organisation(s)

Institute of Quantum Optics
CRC 1227 Designed Quantum States of Matter (DQ-mat)

External Organisation(s)

Aarhus University

Type

Article

Journal

Physical Review Letters

Volume

117

ISSN

0031-9007

Publication date

12.08.2016

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

Electronic version(s)

https://doi.org/10.1103/PhysRevLett.117.073604 (Access: Closed)
https://doi.org/10.15488/3592 (Access: Open)