Abstract
Atom interferometers provide a unique way in which to study atomic de Broglie waves1} and properties of atomic sources. One such property of the atomic ensemble, the temperature, is associated with the coherence length, which can be measured with an interferometer. This can be used to deduce the temperature even at very low temperatures where time of flight methods fail.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
For an overview of the subject see Atom Interferometry, edited by P. Berman, (Academic Press, San Diego, 1997).
Molecular Beams, N.F. Ramsey, (Oxford University Press, Oxford, 1986).
P.D. Featonby et ai, Phys. Rev. Lett. 81: (1998)
P. Marte et al, Phys. Rev. A 44:R4118 (1991), J. Lawall and M. Prentiss, Phys. Rev. Lett. 72:993 (1994), L. Goldner et al., Phys. Rev. Lett. 72:997 (1994), P. Featonby et al., Phys. Rev. A 5:373 (1996).
J. Kuklinski et al., Phys. Rev. A 40:6741 (1989).
This process is what is meant by the term AT for the remainder of this article.
This is a valid approximation as long as the AT causes no velocity selection. A model of the π — σ+ — π AT we have developed indicates that velocity selection for a 3 μK sample of atoms is only significant when the pulse length is greater than approximately 20μS. We have also confirmed this experimentally and these results will be presented in a forthcoming paper.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer Science+Business Media New York
About this chapter
Cite this chapter
Oberthaler, M.K. et al. (1999). An Atom Interferometer as a Thermometer. In: Whelan, C.T., Dreizler, R.M., Macek, J.H., Walters, H.R.J. (eds) New Directions in Atomic Physics. Physics of Atoms and Molecules. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4721-1_38
Download citation
DOI: https://doi.org/10.1007/978-1-4615-4721-1_38
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-7139-7
Online ISBN: 978-1-4615-4721-1
eBook Packages: Springer Book Archive