Annihilation of an AB/BA interface pair in superfluid helium-3 as a simulation of cosmological brane interaction.

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) Annihilation of an AB/BA interface pair in superfluid helium-3 as a simulation of cosmological brane interaction. Philosophical Transactions A: Mathematical, Physical and Engineering Sciences, 366 (1877). pp. 2803-2812. ISSN 1364-503X

Full text not available from this repository.

Abstract

This study presents measurements of the transport of quasiparticle excitations in the B phase of superfluid He-3 at temperatures below 0.2Tc. We find that creating and then removing a layer of A-phase superfluid leads to a measurable increase in the thermal impedance of the background B phase. This increase must be due to the survival of defects created as the AB and BA interfaces on either side of the A-phase layer annihilate. We speculate that a new type of defect may have been formed. The highly ordered A B interface may be a good analogy for branes discussed in current cosmology. If so, these experiments may provide insight into how the annihilation of branes can lead to the formation of topological defects such as cosmic strings.

Item Type:
Journal Article
Journal or Publication Title:
Philosophical Transactions A: Mathematical, Physical and Engineering Sciences
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
23457
Deposited By:
Deposited On:
19 Jan 2009 15:55
Refereed?:
Yes
Published?:
Published
Last Modified:
12 Mar 2020 02:12