Browsing ODA Open Digital Archive by Author "Brevik, Iver Håkon"
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Universe models with negative bulk viscosity
Brevik, Iver Håkon; Grøn, Øyvind (Astrophysics and Space Science;347 (2), Journal article; Peer reviewed, 2013-10)The concept of negative temperatures has occasionally been used in connection with quantum systems. A recent example of this sort is reported in the paper of S. Braun et al. [Science 339, 52 (2013)], where an attractively ...