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119 papers · 1 filter
Theoretical investigation of orbital alignment of x-ray-ionized atoms in exotic electronic configurations
Laura Budewig, Sang-Kil Son, Robin Santra
We theoretically study orbital alignment in x-ray-ionized atoms and ions, based on improved electronic-structure calculations starting from the Hartree-Fock-Slater model. We employ…
Size-controlled quantum dots reveal the impact of intraband transitions on high-order harmonic generation in solids
Kotaro Nakagawa, Hideki Hirori, Shunsuke A. Sato +7
Since the discovery of high-order harmonic generation (HHG) in solids, much effort has been devoted to understanding its generation mechanism and both interband and intraband trans…
Testing the topological nature of end states in antiferromagnetic atomic chains on superconductors
Lucas Schneider, Philip Beck, Levente Rózsa +3
Edge states forming at the boundaries of topologically non-trivial phases of matter are promising candidates for future device applications because of their stability against local…
Realization of a three-dimensional quantum Hall effect in a Zeeman-induced second order topological insulator on a torus
Zhe Hou, Clara S. Weber, Dante M. Kennes +4
We propose a realization of a quantum Hall effect (QHE) in a second-order topological insulator (SOTI) in three dimensions (3D), which is mediated by hinge states on a torus surfac…
Observation of a new light-induced skyrmion phase in the Mott insulator Cu2OSeO3
Alexey A. Sapozhnik, Benoit Truc, Phoebe Tengdin +10
We report the discovery of a novel skyrmion phase in the multiferroic insulator Cu2OSeO3 for magnetic fields below the equilibrium skyrmion pocket. This phase can be accessed by ex…
Can neural quantum states learn volume-law ground states?
Giacomo Passetti, Damian Hofmann, Pit Neitemeier +3
We study whether neural quantum states based on multi-layer feed-forward networks can find ground states which exhibit volume-law entanglement entropy. As a testbed, we employ the…