The Annihilation of Two Phase Interfaces in Superfluid He-3: Simulated Brane Annihilation in the Laboratory.

Bradley, D. Ian and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Kopu, Juha and Martin, Hazel and Pickett, George R. and Roberts, John Edward and Tsepelin, Viktor (2008) The Annihilation of Two Phase Interfaces in Superfluid He-3: Simulated Brane Annihilation in the Laboratory. Journal of the Physical Society of Japan, 77 (11). p. 111005. ISSN 0031-9015

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Abstract

The structure of the order parameter in superfluid He-3 mimics closely the analogous structure of the "metric" of the Universe. Since the superfluid may exist in several phases we can, using a magnetic field gradient, set up coherent phase boundaries in the superfluid which are the closest laboratory analogues we have to cosmological branes. We find that if we annihilate two such branes (an AB and a BA interface) then we find that the annihilation leaves relic defects in the superfluid texture. These results can help to "validate" those braneworld scenarios where brane annihilation is thought similarly to lead to the formation of topological defects such as cosmic strings.

Item Type:
Journal Article
Journal or Publication Title:
Journal of the Physical Society of Japan
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
23456
Deposited By:
Deposited On:
19 Jan 2009 15:13
Refereed?:
Yes
Published?:
Published
Last Modified:
12 Mar 2020 02:12