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| Keywords: 2-D Bose-Einstein condensates (BECs); Berezinskii, Kosterlitz and Thouless (BKT) transition (5940300549).jpg A gas of atoms arranged in a single flat layer ordinarily has 'thermal' behavior left in which the atoms act as individual entities At lowered temperatures the gas transforms into a 'quasi-condensate' middle consisting of little islands schematically represented as colored blobs that fluctuate in time; within each island atoms act as a single coordinated entity At lower temperatures still the gas enters the superfluid 'BKT' phase right the islands start to coalesce and atoms can flow frictionlessly within the merged area Credit Kristian Helmerson JQI Disclaimer Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST Use of NIST Information These World Wide Web pages are provided as a public service by the National Institute of Standards and Technology NIST With the exception of material marked as copyrighted information presented on these pages is considered public information and may be distributed or copied Use of appropriate byline/photo/image credits is requested https //www flickr com/photos/usnistgov/5940300549/ 2-D Bose-Einstein condensates BECs ; Berezinskii Kosterlitz and Thouless BKT transition 2009-03-23 11 35 https //www flickr com/people/63059536 N06 National Institute of Standards and Technology PD-USGov National Institute of Standards and Technology https //flickr com/photos/63059536 N06/5940300549 2016-09-07 02 34 03 United States Government Work Uncategorized 2016 October 20 | ||||
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