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Spin-triplet supercurrent carried by quantum Hall edge states through a Josephson junction
J. A. M. van Ostaay, A. R. Akhmerov, C. W. J. Beenakker
We show that a spin-polarized Landau level in a two-dimensional electron gas can carry a spin-triplet supercurrent between two spin-singlet superconductors. The supercurrent result…
Effects of disorder on the transmission of nodal fermions through a d-wave superconductor
J. K. Asboth, A. R. Akhmerov, M. V. Medvedyeva +1
The bulk microwave conductivity of a dirty d-wave superconductor is known to depend sensitively on the range of the disorder potential: long-range scattering enhances the conductiv…
Electrically detected interferometry of Majorana fermions in a topological insulator
A. R. Akhmerov, Johan Nilsson, C. W. J. Beenakker
We show how a chiral Dirac fermion (a massless electron or hole) can be converted into a pair of neutral chiral Majorana fermions (a particle equal to its own antiparticle). These…
Quantum Goos-Hanchen effect in graphene
C. W. J. Beenakker, R. A. Sepkhanov, A. R. Akhmerov +1
The Goos-Hanchen (GH) effect is an interference effect on total internal reflection at an interface, resulting in a shift sigma of the reflected beam along the interface. We show t…
Finite difference method for transport properties of massless Dirac fermions
J. Tworzydlo, C. W. Groth, C. W. J. Beenakker
We adapt a finite difference method of solution of the two-dimensional massless Dirac equation, developed in the context of lattice gauge theory, to the calculation of electrical c…
Extinction of coherent backscattering by a disordered photonic crystal with a Dirac spectrum
R. A. Sepkhanov, A. Ossipov, C. W. J. Beenakker
Photonic crystals with a two-dimensional triangular lattice have a conical singularity in the spectrum. Close to this so-called Dirac point, Maxwell's equations reduce to the Dirac…