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

Source: [Tachyon Condensation Due to Domain-Wall Annihilation in Bose-Einstein Condensates](<https://www.sota2.com/research/paper/68fa2ea71e209131ce864714>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:53:27.920Z

Authors: Hiromitsu Takeuchi, Kenichi Kasamatsu, Makoto Tsubota, Muneto Nitta

Published: 2012-05-10T18:19:55.000Z

## 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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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1205.2330>)

[PDF](<https://arxiv.org/pdf/1205.2330.pdf>)