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Journal articles
Experimental evidence of non-Gaussian fluctuations near a critical point.
Abstract : The orientation fluctuations of the director of a liquid crystal are measured, by a sensitive polarization interferometer, close to the Fréedericksz transition, which is a second order transition driven by an electric field. We show that near the critical value of the field the spatially averaged order parameter has a generalized Gumbel distribution instead of a Gaussian one. The latter is recovered away from the critical point. The relevance of slow modes is pointed out. The parameter of generalized Gumbel is related to the effective number of degrees of freedom.
Cited literature [12 references]
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00255014
Contributor : Sergio Ciliberto <>
Submitted on : Wednesday, April 9, 2008 - 5:36:36 PM
Last modification on : Friday, February 12, 2021 - 10:58:06 AM
Long-term archiving on: : Tuesday, September 21, 2010 - 4:27:24 PM
Contributor : Sergio Ciliberto <>
Submitted on : Wednesday, April 9, 2008 - 5:36:36 PM
Last modification on : Friday, February 12, 2021 - 10:58:06 AM
Long-term archiving on: : Tuesday, September 21, 2010 - 4:27:24 PM
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