Cavalleri and coworkers have discovered evidence of light-induced superconductivity and related phenomena in several different materials. Here we suggest that some features may be naturally interpreted using a time-dependent Ginzburg-Landau model. In particular, we focus on the lifetime of the transient state in La$_{ 1.675}$Eu$_{ 0.2}$Sr$_{ 0.125}$CuO$_4$ (LESCO$_{ 1/8}$), which is remarkably long below about 25 K, but exhibits different behavior at higher temperature.
Categories: cond-mat.supr-con