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Signatures of localization on the edge of a fractional topological insulator
Yuzhuo Tian, Jinhong Park, Alexander D. Mirlin +1
Recent experiments in van der Waals moiré materials have reported realizations of two-dimensional fractional topological insulators (FTIs). We study transport properties of FTI edg…
Non-equilibrium bosonization of fractional quantum Hall edges
Christian Spånslätt, Jinhong Park, Alexander D. Mirlin
Edge transport serves as a powerful probe of remarkable low-energy properties of fractional quantum Hall states, including the anyonic character of their excitations. Here, we deve…
Drag conductance induced by neutral-mode localization in fractional quantum Hall junctions
Jinhong Park, Moshe Goldstein, Yuval Gefen +2
A junction of two 2/3 fractional quantum Hall (FQH) edges, with no charge tunneling between them, may exhibit Anderson localization of neutral modes. Manifestations of such localiz…
Localization and conductance in fractional quantum Hall edges
Misha Yutushui, Jinhong Park, Alexander D. Mirlin
The fractional quantum Hall (FQH) effect gives rise to abundant topological phases, presenting an ultimate platform for studying the transport of edge states. Generic FQH edge cont…
Fingerprints of anti-Pfaffian topological order in quantum point contact transport
Jinhong Park, Christian Spånslätt, Alexander D. Mirlin
Despite recent experimental developments, the topological order of the fractional quantum Hall state at filling remains an outstanding question. We study conductance and sh…
Electrical noise spectroscopy of magnons in a quantum Hall ferromagnet
Ravi Kumar, Saurabh Kumar Srivastav, Ujjal Roy +7
Collective spin-wave excitations-magnons-in a quantum Hall ferromagnet are promising quasi-particles for next-generation spintronics devices, including platforms for information tr…
Transport Signatures of Fractional Quantum Hall Binding Transitions
Christian Spånslätt, Ady Stern, Alexander D. Mirlin
Certain fractional quantum Hall edges have been predicted to undergo quantum phase transitions which reduce the number of edge channels and at the same time bind electrons together…
Coulomb blockade of chiral Majorana and complex fermions far from equilibrium
Dmitriy S. Shapiro, Alexander D. Mirlin, Alexander Shnirman
We study charge transport in a single-electron transistor implemented as an interferometer such that the Coulomb blockaded middle island contains a circular chiral Majorana or Dira…
Determination of topological edge quantum numbers of fractional quantum Hall phases
Saurabh Kumar Srivastav, Ravi Kumar, Christian Spånslätt +5
To determine the topological quantum numbers of fractional quantum Hall (FQH) states hosting counter-propagating (CP) downstream () and upstream () edge modes, it is pivo…
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…
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…
Microwave response of a chiral Majorana interferometer
Dmitriy S. Shapiro, Alexander D. Mirlin, Alexander Shnirman
We consider an interferometer based on artificially induced topological superconductivity and chiral 1D Majorana fermions. The (non-topological) superconducting island inducing the…
Multifractally-enhanced superconductivity in thin films
I. S. Burmistrov, I. V. Gornyi, A. D. Mirlin
The multifractal superconducting state originates from the interplay of Anderson localization and interaction effects. In this article we overview the recent theory of the supercon…
Anomalous Hydrodynamics in One Dimensional Electronic Fluid
I. V. Protopopov, R. Samanta, A. D. Mirlin +1
We construct multi-mode viscous hydrodynamics for one dimensional spinless electrons. Depending on the scale, the fluid has six (shortest lengths), four (intermediate, exponentiall…
Vanishing thermal equilibration for hole-conjugate fractional quantum Hall states in graphene
Saurabh Kumar Srivastav, Ravi Kumar, Christian Spånslätt +5
Transport through edge-channels is responsible for conduction in quantum Hall (QH) phases. Topology dictates quantization of both charge and thermal transport coefficients. These t…
Noise on the Non-Abelian Fractional Quantum Hall Edge
Jinhong Park, Christian Spånslätt, Yuval Gefen +1
The recent measurement of a half-integer thermal conductance for the fractional quantum Hall state has confirmed its non-Abelian nature, making the question of the underlyi…
Temperature enhancement of thermal Hall conductance quantization
I. C. Fulga, Yuval Oreg, Alexander D. Mirlin +2
The quest for non-Abelian quasiparticles has inspired decades of experimental and theoretical efforts, where the scarcity of direct probes poses a key challenge. Among their cleare…
Conductance plateaus and shot noise in fractional quantum Hall point contacts
Christian Spånslätt, Jinhong Park, Yuval Gefen +1
Quantum point contact devices are indispensable tools for probing the edge structure of the fractional quantum Hall (FQH) states. Recent observations of quantized conductance plate…
Dissipation without resistance: Imaging impurities at quantum Hall edges
Gu Zhang, Igor V. Gornyi, Alexander D. Mirlin
Motivated by the recent experiment by Marguerite et al. [1] on imaging in graphene samples, we investigate theoretically the dissipation induced by resonant impurities in the quant…
Topological classification of shot noise on fractional quantum Hall edges
Christian Spånslätt, Jinhong Park, Yuval Gefen +1
Electrical and thermal transport on a fractional quantum Hall edge are determined by topological quantities inherited from the corresponding bulk state. While electrical transport…
Asymmetry of non-local dissipation: From drift-diffusion to hydrodynamics
K. S. Tikhonov, I. V. Gornyi, V. Yu. Kachorovskii +1
We study dissipation in inhomogeneous two-dimensional electron systems. We predict a relatively strong current-induced spatial asymmetry in the heating of the electron and phonon s…
Noise on complex quantum Hall edges: Chiral anomaly and heat diffusion
Jinhong Park, Alexander D. Mirlin, Bernd Rosenow +1
Electrical and thermal conductances of a quantum Hall bar reflect the topological structure of the incompressible bulk phase. Here we show that noise of electrical current carried…
Synthesizing a Fractional v=2/3 State from Particle and Hole States
Yonatan Cohen, Yuval Ronen, Wenmin Yang +6
Topological edge-reconstruction occurs in hole-conjugate states of the fractional quantum Hall effect. The frequently studied polarized state of filling factor v=2/3 was originally…
Long lifetimes of ultra-hot particles in interacting Fermi systems
M. Bard, I. V. Protopopov, A. D. Mirlin
The energy dependence of the relaxation rate of hot electrons due to interaction with the Fermi sea is studied. We consider 2D and 3D systems, quasi-1D quantum wires with multiple…