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Evolution of a neutron-initiated micro big bang in superfluid He 3 -B

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dc.contributor.author Bunkov Y.
dc.contributor.author Golov A.
dc.contributor.author L'Vov V.
dc.contributor.author Pomyalov A.
dc.contributor.author Procaccia I.
dc.date.accessioned 2018-09-18T20:21:07Z
dc.date.available 2018-09-18T20:21:07Z
dc.date.issued 2014
dc.identifier.issn 1098-0121
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/138991
dc.description.abstract A nuclear capture reaction of a single neutron by ultracold superfluid He3 results in a rapid overheating followed by the expansion and subsequent cooling of the hot subregion, in a certain analogy with the big bang of the early universe. It was shown in a Grenoble experiment that a significant part of the energy released during the nuclear reaction was not converted into heat even after several seconds. It was thought that the missing energy was stored in a tangle of quantized vortex lines. This explanation, however, contradicts the expected lifetime of a bulk vortex tangle, 10-5-10-4 s, which is much shorter than the observed time delay of seconds. In this paper we propose a scenario that resolves the contradiction: the vortex tangle, created by the hot spot, emits isolated vortex loops that take with them a significant part of the tangle's energy. These loops quickly reach the container walls. The dilute ensemble of vortex loops attached to the walls can survive for a long time, while the remaining bulk vortex tangle decays quickly. © 2014 American Physical Society.
dc.relation.ispartofseries Physical Review B - Condensed Matter and Materials Physics
dc.title Evolution of a neutron-initiated micro big bang in superfluid He 3 -B
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 90
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS10980121-2014-90-2-SID84904369058


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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