Viscous terahertz photoconductivity of hydrodynamic electrons in graphene

M. Kravtsov, А. Л. Шилов, Yi Yang, T. Pryadilin, Mikhail Kashchenko, Olena Popova, M. Titova, D. Voropaev, Y. Wang, K. Shein, Igor Gayduchenko, Gregory Goltsman, M. Lukianov, Andrei Kudriashov, Takashi Taniguchi, Kenji Watanabe, Dmitry Svintsov, Shaffique Adam, Kostya S. Novoselov, Alessandro Principi, D. A. Bandurin