17 citations · 145 across the 19 of their papers we have counts for
19 papers
Luttinger liquid tensor network: sine versus tangent dispersion of massless Dirac fermions
V. A. Zakharov, S. Polla, A. Donís Vela +4
To apply the powerful many-body techniques of tensor networks to massless Dirac fermions one wants to discretize the Hamiltonian and construct a matrix-product-operator (…
Helical Luttinger liquid on a space-time lattice
V. A. Zakharov, J. Tworzydlo, C. W. J. Beenakker +1
The Luttinger model is a paradigm for the breakdown due to interactions of the Fermi liquid description of one-dimensional massless Dirac fermions. Attempts to discretize the model…
Magnus effect on a Majorana zero-mode
G. Lemut, M. J. Pacholski, S. Plugge +2
A supercurrent on the proximitized surface of a topological insulator can cause a delocalization transition of a Majorana fermion bound to a vortex core as a zero-mode. Here we stu…
Tangent fermions: Dirac or Majorana fermions on a lattice without fermion doubling
C. W. J. Beenakker, A. Donis Vela, G. Lemut +2
I. Introduction II. Two-dimensional lattice fermions III. Methods to avoid fermion doubling (sine dispersion, sine plus cosine dispersion, staggered lattice dispersion, linear sawt…
Reflectionless Klein tunneling of Dirac fermions: Comparison of split-operator and staggered-lattice discretization of the Dirac equation
A. Donís Vela, G. Lemut, M. J. Pacholski +2
Massless Dirac fermions in an electric field propagate along the field lines without backscattering, due to the combination of spin-momentum locking and spin conservation. This phe…
Massless Dirac fermions on a space-time lattice with a topologically protected Dirac cone
A. Donís Vela, M. J. Pacholski, G. Lemut +2
The symmetries that protect massless Dirac fermions from a gap opening may become ineffective if the Dirac equation is discretized in space and time, either because of scattering b…
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…
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…
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…
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…
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…
Half-integer charge injection by a Josephson junction without excess noise
F. Hassler, A. Grabsch, M. J. Pacholski +4
A Josephson junction in a topological superconductor can inject a charge e/2 into a normal-metal contact, carried by chiral Majorana edge modes. Here we address the question whethe…
Magnetic breakdown spectrum of a Kramers-Weyl semimetal
G. Lemut, A. Donís Vela, M. J. Pacholski +2
We calculate the Landau levels of a Kramers-Weyl semimetal thin slab in a perpendicular magnetic field . The coupling of Fermi arcs on opposite surfaces broadens the Landau leve…
Localization landscape for Dirac fermions
G. Lemut, M. J. Pacholski, O. Ovdat +3
In the theory of Anderson localization, a landscape function predicts where wave functions localize in a disordered medium, without requiring the solution of an eigenvalue problem.…
Universal chiral magnetic effect in the vortex lattice of a Weyl superconductor
M. J. Pacholski, C. W. J. Beenakker, İ. Adagideli
It was shown recently that Weyl fermions in a superconducting vortex lattice can condense into Landau levels. Here we study the chiral magnetic effect in the lowest Landau level: T…
Time-resolved electrical detection of chiral edge vortex braiding
I. Adagideli, F. Hassler, A. Grabsch +2
A phase shift across a Josephson junction in a topological superconductor injects vortices into the chiral edge modes at opposite ends of the junction. When two vortices are f…
Effect of charge renormalization on electric and thermo-electric transport along the vortex lattice of a Weyl superconductor
G. Lemut, M. J. Pacholski, İ. Adagideli +1
Building on the discovery that a Weyl superconductor in a magnetic field supports chiral Landau level motion along the vortex lines, we investigate its transport properties out of…
Topologically protected Landau level in the vortex lattice of a Weyl superconductor
M. J. Pacholski, C. W. J. Beenakker, İ. Adagideli
The question whether the mixed phase of a gapless superconductor can support a Landau level is a celebrated problem in the context of \textit{d}-wave superconductivity, with a nega…
Wiedemann-Franz-type relation between shot noise and thermal conduction of Majorana surface states in a three-dimensional topological superconductor
N. V. Gnezdilov, M. Diez, M. J. Pacholski +1
We compare the thermal conductance (at temperature ) and the electrical shot noise power (at bias voltage ) of Majorana fermi…