Ground State of Magic Angle Twisted Bilayer Graphene at Charge Neutrality II
ORAL
Abstract
In magic angle twisted bilayer graphene (MATBG), interactions dominate over the kinetic energy, resulting in correlated insulating states and superconductivity whose origin remains a mystery. Here, using a combination of analytical arguments and numerical calculations we identify a family of candidate insulating ground states at charge neutrality and discuss how external perturbations such as the influence of the substrate or strain can alter the phase diagram.
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Presenters
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Shang Liu
Harvard University
Authors
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Shang Liu
Harvard University
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Nick Bultinck
University of California, Berkeley
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Eslam Khalaf
Harvard University
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Shubhayu Chatterjee
University of California, Berkeley
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Ashvin Vishwanath
Harvard University, Physics, Harvard University, Department of Physics, Harvard University
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Michael Zaletel
University of California, Berkeley