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The cosmological kibble mechanism in the laboratory: string formation in liquid crystals |
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| Authors: | Bowick M J Chandar L Schiff E A Srivastava A M |
| Abstract: | The production of strings (disclination lines and loops) has been observed by means of the Kibble mechanism of domain (bubble) formation in the isotropic-nematic phase transition of the uniaxial nematic liquid crystal 4-cyano-4'-n-pentylbiphenyl. The number of strings formed per bubble is about 0.6. This value is in reasonable agreement with a numerical simulation of the experiment in which the Kibble mechanism is used for the order parameter space of a uniaxial nematic liquid crystal. |
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