Ibaceta D, Calzetta E
Department of Physics and Instituto de Astronomia y Física del Espacio, University of Buenos Aires, Buenos Aires, Argentina.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Sep;60(3):2999-3008. doi: 10.1103/physreve.60.2999.
We consider the formation of defects in a nonequilibrium second-order phase transition induced by an instantaneous quench to zero temperature in a type II superconductor. We perform a full nonlinear simulation where we follow the evolution in time of the local order parameter field. We determine how far into the phase transition theoretical estimates of the defect density based on the Gaussian approximation yield a reliable prediction for the actual density. We also characterize quantitatively some aspects of the out of equilibrium phase transition.
我们考虑在II型超导体中通过瞬间淬火至零温度诱导的非平衡二阶相变中缺陷的形成。我们进行了一个完整的非线性模拟，跟踪局部序参量场随时间的演化。我们确定基于高斯近似的缺陷密度理论估计在相变中能对实际密度给出可靠预测的程度。我们还定量地描述了非平衡相变的一些方面。
