31 citations · 121 across the 11 of their papers we have counts for
11 papers
Counting interacting electrons in one dimension
Oleksiy Kashuba, Thomas L. Schmidt, Fabian Hassler +2
The calculation of the full counting statistics of the charge within a finite interval of an interacting one-dimensional system of electrons is a fundamental, yet as of now unresol…
Perfectly localized Majorana corner modes in fermionic lattices
Prathyush P. Poduval, Thomas L. Schmidt, Andreas Haller
Focusing on examples of Majorana zero modes on the corners of a two-dimensional lattice, we introduce a method to find parameter regions where the Majorana modes are perfectly loca…
Black hole mirages: electron lensing and Berry curvature effects in inhomogeneously tilted Weyl semimetals
Andreas Haller, Suraj Hegde, Chen Xu +3
We study electronic transport in Weyl semimetals with spatially varying nodal tilt profiles. We find that the flow of electrons can be guided precisely by judiciously chosen tilt p…
Overlap of parafermionic zero modes at a finite distance
Raphael L. R. C. Teixeira, Andreas Haller, Roshni Singh +4
Parafermion bound states (PBSs) are generalizations of Majorana bound states (MBSs) and have been predicted to exist as zero-energy eigenstates in proximitized fractional quantum H…
Quantum Skyrmion Lattices in Heisenberg Ferromagnets
Andreas Haller, Solofo Groenendijk, Alireza Habibi +2
Skyrmions are topological magnetic textures that can arise in non-centrosymmetric ferromagnetic materials. In most systems experimentally investigated to date, skyrmions emerge as…
Supersolid-Superfluid phase separation in the extended Bose-Hubbard model
Korbinian Kottmann, Andreas Haller, Antonio Acín +2
Recent studies have suggested a new phase in the extended Bose-Hubbard model in one dimension at integer filling [1,2]. In this work, we show that this new phase is phase-separated…
Exploring helical phases of matter in bosonic ladders
Andreas Haller, Apollonas S. Matsoukas-Roubeas, Yueting Pan +2
Ladder models of ultracold atoms offer a versatile platform for the experimental and theoretical study of different phenomena and phases of matter linked to the interplay between a…
Detecting topology through dynamics in interacting fermionic wires
Andreas Haller, Pietro Massignan, Matteo Rizzi
We describe a protocol to read out the topological invariant of interacting 1D chiral models, based on measuring the mean chiral displacement of time-evolving bulk excitations. We…
Drude weight increase by orbital and repulsive interactions in fermionic ladders
Andreas Haller, Matteo Rizzi, Michele Filippone
In strictly one-dimensional systems, repulsive interactions tend to reduce particle mobility on a lattice. Therefore, the Drude weight, controlling the divergence at zero-frequency…
Quantum criticality on a chiral ladder: an iDMRG study
Philipp Schmoll, Andreas Haller, Matteo Rizzi +1
In this paper we study the ground state properties of a ladder Hamiltonian with chiral -invariant spin interactions, a possible first step towards the construction of truly…
The resonant state at filling factor ν = 1/2 in chiral fermionic ladders
A. Haller, M. Rizzi, M. Burrello
Helical liquids have been experimentally detected in both nanowires and ultracold atomic chains as the result of strong spin-orbit interactions. In both cases the inner degrees of…