79 citations · 1.4k across the 37 of their papers we have counts for
28 papers · 1 filter
Kondo effect in twisted bilayer graphene
A. S. Shankar, D. O. Oriekhov, Andrew K. Mitchell +1
The emergence of flat bands in twisted bilayer graphene at the magic angle can be understood in terms of a vanishing Fermi velocity of the Dirac cone. This is associated with van H…
Automatic Differentiable Numerical Renormalization Group
Jonas B. Rigo, Andrew K. Mitchell
Machine learning techniques have recently gained prominence in physics, yielding a host of new results and insights. One key concept is that of backpropagation, which computes the…
SO(5) critical point in a spin-flavor Kondo device -- Bosonization and refermionization solution
Alon Liberman, Andrew K. Mitchell, Ian Affleck +1
We investigate a well studied system of a quantum dot coupled to a Coulomb box and leads, realizing a spin-flavor Kondo model. It exhibits a recently discovered non-Fermi liquid (N…
SO(5) non-Fermi liquid in a Coulomb box device
Andrew K. Mitchell, Alon Liberman, Eran Sela +1
Non-Fermi liquid (NFL) physics can be realized in quantum dot devices where competing interactions frustrate the exact screening of dot spin or charge degrees of freedom. We show t…
Electric and heat transport in a charge two-channel Kondo device
G. A. R. van Dalum, A. K. Mitchell, L. Fritz
Motivated by the experimental realization of a multi-channel charge Kondo device [Iftikhar et al., Nature 526, 233 (2015)], we study generic charge and heat transport properties of…
The Mott transition as a topological phase transition
Sudeshna Sen, Patrick J. Wong, Andrew K. Mitchell
We show that the Mott metal-insulator transition in the standard one-band Hubbard model can be understood as a topological phase transition. Our approach is inspired by the observa…