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Observation of ballistic upstream modes at fractional quantum Hall edges of graphene
Ravi Kumar, Saurabh Kumar Srivastav, Christian Spånslätt +5
The structure of edge modes at the boundary of quantum Hall (QH) phases forms the basis for understanding low energy transport properties. In particular, the presence of ``upstream…
Generalized multifractality at spin quantum Hall transition
Jonas F. Karcher, Noah Charles, Ilya A. Gruzberg +1
Generalized multifractality characterizes scaling of eigenstate observables at Anderson-localization critical points. We explore generalized multifractality in 2D systems, with the…
Absent thermal equilibration on fractional quantum Hall edges over macroscopic scale
Ron Aharon Melcer, Bivas Dutta, Christian Spånslätt +3
Two-dimensional topological insulators, and in particular quantum Hall states, are characterized by an insulating bulk and a conducting edge. Fractional states may host both downst…
Resistance of 2D superconducting films
E. J. König, I. V. Protopopov, A. Levchenko +2
We consider the problem of finite resistance in superconducting films with geometry of a strip of width near zero temperature. The resistance is generated by vortex configu…
Tunable Anderson Localization of Dark States
Jan David Brehm, Paul Pöpperl, Alexander D. Mirlin +4
Random scattering of photons in disordered one-dimensional solids gives rise to an exponential suppression of transmission, which is known as Anderson localization. Here, we experi…
Generalized quantum measurements with matrix product states: Entanglement phase transition and clusterization
Elmer V. H. Doggen, Yuval Gefen, Igor V. Gornyi +2
We propose a method, based on matrix product states, for studying the time evolution of many-body quantum lattice systems under continuous and site-resolved measurement. Both the f…