![](https://webarchive.library.unt.edu/eot2008/20081106230923im_/http://nsf.gov/images/x.gif) News From the Field New Method to Directly Probe the Quantum Collisions of Individual Atoms
![](https://webarchive.library.unt.edu/eot2008/20081106230923im_/http://nsf.gov/images/greenlineshort.jpg)
April 18, 2007
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A new method has been developed to directly, and precisely, measure a quantum property of individual atoms--the phase shifts that result when atoms collide at ultracold temperatures--in a way that is independent of the accuracy-limiting density of the atoms. These shifts are important for improving atomic clocks and other areas of contemporary atomic physics, including research on super-sensitive atom lasers and high-temperature superconductivity.
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Source The Pennsylvania State University
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