Light–matter interaction at atomic scales

R Gutzler, M Garg, CR Ast, K Kuhnke, K Kern - Nature Reviews Physics, 2021 - nature.com
Light–matter interaction drives many systems, such as optoelectronic devices like light-
emitting diodes and solar cells, biological structures like photosystem II and potential future …

Two-dimensional Shiba lattices as a possible platform for crystalline topological superconductivity

MO Soldini, F Küster, G Wagner, S Das… - Nature Physics, 2023 - nature.com
Localized or propagating Majorana boundary modes are the key feature of topological
superconductors. They are rare in naturally occurring compounds, but the tailored …

Two-level systems in superconducting quantum devices due to trapped quasiparticles

SE De Graaf, L Faoro, LB Ioffe, S Mahashabde… - Science …, 2020 - science.org
A major issue for the implementation of large-scale superconducting quantum circuits is the
interaction with interfacial two-level system (TLS) defects that lead to qubit parameter …

Monolayer 1T-NbSe2 as a 2D-correlated magnetic insulator

M Liu, J Leveillee, S Lu, J Yu, H Kim, C Tian, Y Shi… - Science …, 2021 - science.org
Monolayer group V transition metal dichalcogenides in their 1T phase have recently
emerged as a platform to investigate rich phases of matter, such as spin liquid and …

Extreme enhancement of superconductivity in epitaxial aluminum near the monolayer limit

WMJ van Weerdenburg, A Kamlapure, EH Fyhn… - Science …, 2023 - science.org
BCS theory has been widely successful at describing elemental bulk superconductors. Yet,
as the length scales of such superconductors approach the atomic limit, dimensionality as …

Cooper pair excitation mediated by a molecular quantum spin on a superconducting proximitized gold film

S Trivini, J Ortuzar, K Vaxevani, J Li, FS Bergeret… - Physical Review Letters, 2023 - APS
Breaking a correlated pair in a superconductor requires an even number of fermions
providing at least twice the pairing energy Δ. Here, we show that a single tunneling electron …

Surrogate model solver for impurity-induced superconducting subgap states

VV Baran, EJP Frost, J Paaske - Physical Review B, 2023 - APS
A simple impurity solver is shown to capture impurity-induced superconducting subgap
states in quantitative agreement with the numerical renormalization group and quantum …

Atomic-scale spin-polarization maps using functionalized superconducting probes

L Schneider, P Beck, J Wiebe, R Wiesendanger - Science Advances, 2021 - science.org
A scanning tunneling microscope (STM) with a magnetic tip that has a sufficiently strong spin
polarization can be used to map the sample's spin structure down to the atomic scale but …

Yu-shiba-rusinov qubit

A Mishra, P Simon, T Hyart, M Trif - PRX Quantum, 2021 - APS
Magnetic impurities in s-wave superconductors lead to spin-polarized Yu-Shiba-Rusinov
(YSR) in-gap states. Chains of magnetic impurities offer one of the most viable routes for the …

Hund's coupling mediated multi-channel quantum phase transition of a single magnetic impurity in Fe (Se, Te)

M Uldemolins, A Mesaros, GD Gu… - Nature …, 2024 - nature.com
Understanding the interplay between individual magnetic impurities and superconductivity is
crucial for bottom-up construction of novel phases of matter. Sub-gap bound states that are …