165 citations · 639 across the 25 of their papers we have counts for
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Quantum tunneling in the presence of a topology-changing fermionic bath
Elis Roberts, Jan Behrends, Benjamin Béri
Coupling a quantum particle to a fermionic bath suppresses the particle's amplitude to tunnel, even at zero temperature. While this effect can generally be neglected for gapped bat…
Berry connection induced anomalous wave-packet dynamics in non-Hermitian systems
Navot Silberstein, Jan Behrends, Moshe Goldstein +1
Berry phases strongly affect the properties of crystalline materials, giving rise to modifications of the semiclassical equations of motion that govern wave-packet dynamics. In non…
Second-Order Bulk-Boundary Correspondence in Rotationally Symmetric Topological Superconductors from Stacked Dirac Hamiltonians
Elis Roberts, Jan Behrends, Benjamin Béri
Two-dimensional second-order topological superconductors host zero-dimensional Majorana bound states at their boundaries. In this work, focusing on rotation-invariant crystalline t…
Anomalous conductance scaling in strained Weyl semimetals
Jan Behrends, Roni Ilan, Jens H. Bardarson
Magnetotransport provides key experimental signatures in Weyl semimetals. The longitudinal magnetoresistance is linked to the chiral anomaly and the transversal magnetoresistance t…
Landau levels, Bardeen polynomials and Fermi arcs in Weyl semimetals: the who's who of the chiral anomaly
Jan Behrends, Sthitadhi Roy, Michael H. Kolodrubetz +2
Condensed matter systems realizing Weyl fermions exhibit striking phenomenology derived from their topologically protected surface states as well as chiral anomalies induced by ele…
Transversal magnetotransport in Weyl semimetals: Exact numerical approach
Jan Behrends, Flore K. Kunst, Björn Sbierski
Magnetotransport experiments on Weyl semimetals are essential for investigating the intriguing topological and low-energy properties of Weyl nodes. If the transport direction is pe…
Nodal-line semimetals from Weyl superlattices
Jan Behrends, Jun-Won Rhim, Shang Liu +2
The existence and topological classification of lower-dimensional Fermi surfaces is often tied to the crystal symmetries of the underlying lattice systems. Artificially engineered…
Strongly angle-dependent magnetoresistance in Weyl semimetals with long-range disorder
Jan Behrends, Jens H. Bardarson
The chiral anomaly in Weyl semimetals states that the left- and right-handed Weyl fermions, constituting the low energy description, are not individually conserved, resulting, for…
Visualizing the chiral anomaly in Dirac and Weyl semimetals with photoemission spectroscopy
Jan Behrends, Adolfo G. Grushin, Teemu Ojanen +1
Quantum anomalies are the breaking of a classical symmetry by quantum fluctuations. They dictate how physical systems of diverse nature, ranging from fundamental particles to cryst…