Spatial quantum noise interferometry in expanding ultracold atom clouds

Simon Fölling, Fabrice Gerbier, Artur Widera, Olaf Mandel, Tatjana Gericke and Immanuel Bloch ()
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Simon Fölling: Johannes Gutenberg-Universität
Fabrice Gerbier: Johannes Gutenberg-Universität
Artur Widera: Johannes Gutenberg-Universität
Olaf Mandel: Johannes Gutenberg-Universität
Tatjana Gericke: Johannes Gutenberg-Universität
Immanuel Bloch: Johannes Gutenberg-Universität

Nature, 2005, vol. 434, issue 7032, 481-484

Abstract: How physics became cool It is ten years since the exotic form of matter known as a Bose–Einstein condensate was first created. It was the birth of ultra-low-temperature physics, and practitioners gathered last month in Banff, Canada, to celebrate and discuss the latest news, as Karen Fox reports. And this week a new development that could have a major impact in the field is announced. In the 1950s, Hanbury Brown and Twiss showed that it is possible to measure angular sizes of astronomical radio sources from correlations of signal intensities in independent detectors. ‘HBT interferometry’ later became a key technique in quantum optics, and now it has been harnessed to identify a quantum phase of ultracold bosonic atoms.

Date: 2005
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DOI: 10.1038/nature03500

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