A detector for continuous measurement of ultra-cold atoms in real time
C. Figl, L. Longchambon, M. Jeppesen, M. Kruger, H. A. Bachor, N. P. Robins, J. D. Close
Abstract
We present the first detector capable of recording high-bandwidth real time atom number density measurements of a Bose Einstein condensate. Based on a two-color Mach-Zehnder interferometer, our detector has a response time that is six orders of magnitude faster than current detectors based on CCD cameras while still operating at the shot-noise limit. With this minimally destructive system it may be possible to implement feedback to stabilize a Bose-Einstein condensate or an atom laser.
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