Details

Autor(en) / Beteiligte

• Joubaud, S.
• Petrosyan, A.
• Ciliberto, S.

Titel

Finite size effects and ageing near a critical point

Ist Teil von

• Philosophical magazine (2003. Print), 2008-11, Vol.88 (33-35), p.4189-4196

Ort / Verlag

Abingdon: Taylor & Francis Group

Erscheinungsjahr

2008

Quelle

Taylor & Francis

Beschreibungen/Notizen

• 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 distribution. The latter is recovered away from the critical point. We also show that after a quench at the critical point the system presents ageing properties.