Invitado: : Adolfo del Campo 
Los Alamos National Laboratory, Theoretical Division, Los Alamos, USA

Date:16 de diciembre, 2013 
Time:14:30 
Place:3rd floor seminar lecture room. Dpt. Física Teórica I. Facultad de Ciencias Físicas UCM.

ABSTRACT

In the course of a nonQequilibrium!continuous!phase!transition,!the! dynamics!ceases!to!be!adiabatic!in!the!vicinity!of!the!critical!point!as!a! result!of!the!critical!slowing!down!(the!divergence!of!the!relaxation!time!in! the!neighborhood!of!the!critical!point).!This!enforces!a!local!choice!of!the! broken!symmetry!and!can!lead!to!the!formation!of!topological!defects.! The!KibbleQZurek!mechanism!(KZM)!was!developed!to!describe!the! associated!nonequilibrium!dynamics!and!to!estimate!the!density!of! defects!as!a!function of!the!quench!rate!through!the!transition.!During! recent!years,!several!new!experiments!investigating!formation!of!defects! in!phase!transitions!induced!by!a!quench!both!in!classical!and!quantum! mechanical!systems!were!carried!out.!At!the!same!time,!some!established! results!were!called!into!question.!We!review!and!analyze!the!KibbleQZurek! mechanism!focusing!in!particular!on!this!surge!of!activity,!and!suggest! possible!directions!for!further!progress.