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February 11, 20224:00 pm – 5:00 pm (CDT)

Viscous electronics.

Speaker: Gregory Falkovich (Weizmann)

Host: A. Finkelstein

Location: MIST M102

Address: Mitchell Institute for Fundamental Physics & Astronomy, College Station, Texas, 77843

Event Details

Abstract: Quantum-critical strongly correlated systems feature universal collision-dominated collective transport. Viscous electronics is an emerging field dealing with systems in which strongly interacting electrons flow like a fluid. Such flows have some remarkable properties never seen before. I shall describe some recent theoretical and experimental works devoted, in particular, to a striking macroscopic DC transport behavior: viscous friction can drive electric current against an applied field, resulting in a negative resistance, recently measured experimentally in graphene. I shall also describe conductance exceeding the fundamental quantum-ballistic limit, freely-flowing viscous flows, field-theoretical anomalies, direct observation of macroscopic vortices and other wonders of viscous electronics. Strongly interacting electron-hole plasma in high-mobility graphene affords a unique link between quantum-critical electron transport and the wealth of fluid mechanics phenomena.

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