Two-fluid dynamics in driven YBa${}_2$Cu${}_3$O${}_{6.48}$

A. Ribak, M. Buzzi, D. Nicoletti +5

Coherent optical excitation of certain phonon modes in YBa${}_2$Cu${}_3$O${}_{6+x}$ has been shown to induce superconducting-like interlayer coherence at temperatures higher than $T_c$.…