79 citations · 1.4k across the 37 of their papers we have counts for
37 papers
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…
Thermometry of Strongly Correlated Fermionic Quantum Systems using Impurity Probes
George Mihailescu, Steve Campbell, Andrew K. Mitchell
We study quantum impurity models as a platform for quantum thermometry. A single quantum spin-1/2 impurity is coupled to an explicit, structured, fermionic thermal environment whic…
parafermion in the double charge-Kondo model
D. B. Karki, Edouard Boulat, Winston Pouse +3
Quantum impurity models with frustrated Kondo interactions can support quantum critical points with fractionalized excitations. Recent experiments [arXiv:2108.12691] on a circuit c…
Fractional entropy of multichannel Kondo systems from conductance-charge relations
Cheolhee Han, Zubair Iftikhar, Yaakov Kleeorin +5
Fractional entropy is a signature of nonlocal degrees of freedom, such as Majorana zero modes or more exotic non-Abelian anyons. Although direct experimental measurements remain ch…
Quantum simulation of an exotic quantum critical point in a two-site charge Kondo circuit
Winston Pouse, Lucas Peeters, Connie L. Hsueh +5
Tuning a material to the cusp between two distinct ground states can produce exotic physical properties, unlike those in either of the neighboring phases. The prospect of designing…
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…