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arXiv · 1205.2330

Tachyon Condensation Due to Domain-Wall Annihilation in Bose-Einstein Condensates

Hiromitsu Takeuchi·Kenichi Kasamatsu·Makoto Tsubota·Muneto Nitta
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Abstract

We show theoretically that a domain-wall annihilation in two-component Bose-Einstein condensates causes tachyon condensation accompanied by spontaneous symmetry breaking in a two-dimensional subspace. Three-dimensional vortex formation from domain-wall annihilations is considered a kink formation in subspace. Numerical experiments reveal that the subspatial dynamics obey the dynamic scaling law of phase-ordering kinetics. This model is experimentally feasible and provides insights into how the extra dimensions influence subspatial phase transition in higher-dimensional space.

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Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota, Muneto Nitta. 2012-12-17. Tachyon Condensation Due to Domain-Wall Annihilation in Bose-Einstein Condensates. https://doi.org/10.1103/physrevlett.109.245301

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