Bose–Einstein condensates are ideal tools with which exotic phenomena can be investigated. The hitherto-unrealized Dicke quantum phase transition has now been observed with one such system in an optical cavity.
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Chin, C., Gemelke, N. Atoms in chequerboard order. Nature 464, 1289–1290 (2010). https://doi.org/10.1038/4641289a
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DOI: https://doi.org/10.1038/4641289a
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