Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - The Annihilation of Two Phase Interfaces in Superfluid He-3: Simulated Brane Annihilation in the Laboratory.
AU - Bradley, D. Ian
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Kopu, Juha
AU - Martin, Hazel
AU - Pickett, George R.
AU - Roberts, John Edward
AU - Tsepelin, Viktor
PY - 2008/11
Y1 - 2008/11
N2 - 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.
AB - 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.
KW - quantum fluids
KW - cosmology
KW - braneworld
KW - brane-annihilation
UR - http://www.scopus.com/inward/record.url?scp=65549171150&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.77.111005
DO - 10.1143/JPSJ.77.111005
M3 - Journal article
VL - 77
SP - 111005
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 11
ER -