no code implementations • 6 Jan 2021 • Ethan Lake, T. Senthil, Ashvin Vishwanath
Unlike Fermi liquids however these phases lack quasiparticles, possess different RG flows, and have correlation functions controlled by a continuously varying exponent $\eta$, which characterizes the anomalous dimension of the bosonic field.
Strongly Correlated Electrons High Energy Physics - Theory
no code implementations • 4 Dec 2020 • Zeyu Hao, A. M. Zimmerman, Patrick Ledwith, Eslam Khalaf, Danial Haie Najafabadi, Kenji Watanabe, Takashi Taniguchi, Ashvin Vishwanath, Philip Kim
We construct a van der Waals heterostructure consisting of three graphene layers stacked with alternating twisting angles $\pm\theta$.
Superconductivity Mesoscale and Nanoscale Physics Strongly Correlated Electrons
no code implementations • 22 Oct 2020 • Abijith Krishnan, Ashvin Vishwanath, Hoi Chun Po
Such a locking raises intriguing questions about the generality of the band-inversion paradigm in describing the transition between trivial and topological phases.
Mesoscale and Nanoscale Physics Strongly Correlated Electrons
no code implementations • 5 Nov 2019 • Nick Bultinck, Eslam Khalaf, Shang Liu, Shubhayu Chatterjee, Ashvin Vishwanath, Michael P. Zaletel
This low energy manifold is also found in the Hartree-Fock numerical calculation.
Strongly Correlated Electrons Mesoscale and Nanoscale Physics
1 code implementation • 14 Jul 2019 • Stephen Carr, Shiang Fang, Hoi Chun Po, Ashvin Vishwanath, Efthimios Kaxiras
Twisted bilayer graphene (TBLG) has emerged as an important platform for studying correlated phenomena, including unconventional superconductivity, in two-dimensional systems.
Strongly Correlated Electrons Mesoscale and Nanoscale Physics
1 code implementation • 7 Aug 2018 • Hoi Chun Po, Liujun Zou, T. Senthil, Ashvin Vishwanath
Correlated insulators and superconductivity have been observed in "magic-angle" twisted bilayer graphene, when the nearly flat bands close to neutrality are partially filled.
Strongly Correlated Electrons Materials Science Superconductivity
