Roton quasiparticles observed in quantum gas An team of physicists has for the first time observed so-called roton quasiparticles in a quantum gas. Empirically introduced by Landau to explain the bizarre properties of superfluid liquid Helium, these quasiparticles reflect an 'energy softening' in the system as precursor of a crystallization instability. The new work demonstrates similar phenomena in the quantum-gas phase thanks to magnetic interactions, paving the way for a novel understanding of paradigmatic states of quantum fluids, such as supersolids. http://ift.tt/eA8V8J
Monday, 5 March 2018
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# Latest Science News -- ScienceDaily
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