WATCH: Quantum Cafe with Liang Fu

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Quantum Café is CCQ’s ongoing seminar series: open to all bona fide members of the greater NYC scientific community and held every second week, Quantum Café presents a series of informal, highly interactive talks, typically by external speakers, which present the most interesting recent developments and open questions in our field.

Title: The Magic of Graphene Superlattice: From Correlated Insulator to Superconductor

Abstract: Recent experiments on bilayer graphene at certain “magic” twist angle have discovered unusual insulating and superconducting states. I will present theoretical ideas of how these states may emerge from ordering instabilities of interacting electrons within a narrow band. Our theory identifies the insulating state at the filling of two electrons per supercell as a charge/spin density wave, and predicts superconductivity in its neighborhood as having d/p-wave pairing symmetry. I will also discuss open problems and challenges in studying many-body physics of graphene superlattices.

About the Speaker

Liang Fu joined the MIT Physics Department as an Assistant Professor in January 2012. He obtained a Bachelor’s degree in Physics from the University of Science and Technology of China in 2004 and PhD in Physics from the University of Pennsylvania in 2009. Before coming to MIT, he was a Junior Fellow at Harvard University.

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