472 citations · 2.1k across the 46 of their papers we have counts for
8 papers · 1 filter
Josephson Ladders as a Model System for 1D Quantum Phase Transitions
M. T. Bell, B. Doucot, M. E. Gershenson +2
We propose a novel platform for the study of quantum phase transitions in one dimension (1D QPT). The system consists of a specially designed chain of asymmetric SQUIDs; each SQUID…
Multicomponent Skyrmion lattices and their excitations
D. L. Kovrizhin, Benoît Douçot, R. Moessner
We study quantum Hall ferromagnets with a finite density topologically charged spin textures in the presence of internal degrees of freedom such as spin, valley, or layer indices,…
Quantum wire networks with local Z2 symmetry
K. Kazymyrenko, S. Dusuel, B. Doucot
For a large class of networks made of connected loops, in the presence of an external magnetic field of half flux quantum per loop, we show the existence of a large local symmetry…
Weakly interacting electrons and the renormalization group
B. Binz, D. Baeriswyl, B. Doucot
We present a general method to study weak-coupling instabilities of a large class of interacting electron models in a controlled and unbiased way. Quite generally, the electron gas…
Discrete non-Abelian gauge theories in two-dimensional lattices and their realizations in Josephson-junction arrays
B. Doucot, L. B. Ioffe, J. Vidal
We discuss real-space lattice models equivalent to gauge theories with a discrete non-Abelian gauge group. We construct the Hamiltonian formalism which is appropriate for their sol…
Topological order in the insulating Josephson junction array
B. Douçot, M. V. Feigel'man, L. B. Ioffe
We propose a Josephson junction array which can be tuned into an unconventional insulating state by varying external magnetic field. This insulating state retains a gap to half vor…