56 citations · 149 across the 6 of their papers we have counts for
6 papers
Floquet engineering Higgs dynamics in time-periodic superconductors
Tobias Kuhn, Björn Sothmann, Jorge Cayao
Higgs modes emerge in superconductors as collective excitations of the order parameter amplitude when periodically driven by electromagnetic radiation. In this work, we develop a F…
Critical behavior of the dimerized Si(001) surface: Continuous order-disorder phase transition in the two-dimensional Ising universality class
Christian Brand, Alfred Hucht, Hamid Mehdipour +8
The critical behavior of the order-disorder phase transition in the buckled dimer structure of the Si(001) surface is investigated both theoretically by means of first-principles c…
Higgs-like pair amplitude dynamics in superconductor-quantum dot hybrids
Mathias Kamp, Björn Sothmann
We consider a quantum dot weakly tunnel coupled to superconducting reservoirs. A finite superconducting pair amplitude can be induced on the dot via the proximity effect. We invest…
Phase-dependent heat and charge transport through superconductor-quantum dot hybrids
Mathias Kamp, Björn Sothmann
We analyze heat and charge transport through a single-level quantum dot coupled to two BCS superconductors at different temperatures to first order in the tunnel coupling. In order…
Phase-coherent heat circulator based on multi-terminal Josephson junctions
Sun-Yong Hwang, Francesco Giazotto, Björn Sothmann
We theoretically propose a phase-coherent thermal circulator based on ballistic multiterminal Josephson junctions. The breaking of time-reversal symmetry by either a magnetic flux…
Unconventional Superconductivity in Double Quantum Dots
Björn Sothmann, Stephan Weiss, Michele Governale +1
The formation of electron pairs is a prerequisite of superconductivity. The fermionic nature of electrons yields four classes of superconducting correlations with definite symmetry…