activity
20192025
most citedTangent fermions: Dirac or Majorana fermions on a lattice without fermion doubling

17 citations · 81 across the 15 of their papers we have counts for

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Showing 2021Show all

5 papers · 1 filter

cond-mat.mes-hall2021

Supercell symmetry modified spectral statistics of Kramers-Weyl fermions

G. Lemut, M. J. Pacholski, J. Tworzydło +1

We calculate the spectral statistics of the Kramers-Weyl Hamiltonian in a chaotic quantum dot. The Hamiltonian has symplectic time-rever…

cond-mat.mes-hall2021

Chiral charge transfer along magnetic field lines in a Weyl superconductor

G. Lemut, M. J. Pacholski, C. W. J. Beenakker

We identify a signature of chirality in the electrical conduction along magnetic vortices in a Weyl superconductor: The conductance depends on whether the magnetic field is paralle…

cond-mat.mes-hall2021

Chirality inversion of Majorana edge modes in a Fu-Kane heterostructure

A. Donís Vela, G. Lemut, M. J. Pacholski +1

Fu and Kane have discovered that a topological insulator with induced s-wave superconductivity (gap , Fermi velocity , Fermi energy ) supports chiral Majorana mo…

cond-mat.mes-hall2021★ 15 cited

Generalized eigenproblem without fermion doubling for Dirac fermions on a lattice

M. J. Pacholski, G. Lemut, J. Tworzydło +1

The spatial discretization of the single-cone Dirac Hamiltonian on the surface of a topological insulator or superconductor needs a special "staggered" grid, to avoid the appearanc…

cond-mat.mes-hall2021★ 6 cited

Deconfinement of Majorana vortex modes produces a superconducting Landau level

M. J. Pacholski, G. Lemut, O. Ovdat +2

A spatially oscillating pair potential with momentum drives a deconfinement transition of the Majorana bound states in the vortex cores o…