42 citations · 42 across the 1 of their papers we have counts for
6 papers
Numerical simulation of non-isothermal viscoelastic flows at high Weissenberg numbers using a finite volume method on general unstructured meshes
Stefanie Meburger, Matthias Niethammer, Dieter Bothe +1
In this numerical study, an original approach to simulate non-isothermal viscoelastic fluid flows at high Weissenberg numbers is presented. Stable computations over a wide range of…
Bright single photon sources in lateral silicon carbide light emitting diodes
Matthias Widmann, Matthias Niethammer, Takahiro Makino +7
Single-photon emitting devices have been identified as an important building block for applications in quantum information and quantum communication. They allow to transduce and co…
Electrical charge state manipulation of single silicon vacancies in a silicon carbide quantum optoelectronic device
Matthias Widmann, Matthias Niethammer, Dmitry Yu. Fedyanin +14
Colour centres with long-lived spins are established platforms for quantum sensing and quantum information applications. Colour centres exist in different charge states, each of th…
Coherent electrical readout of defect spins in 4H-SiC by photo-ionization at ambient conditions
Matthias Niethammer, Matthias Widmann, Torsten Rendler +11
Quantum technology relies on proper hardware, enabling coherent quantum state control as well as efficient quantum state readout. In this regard, wide-bandgap semiconductors are an…
Robust and efficient control of spin probes in a complex (biological) environment. Towards sensing of fast temperature fluctuations
Philipp Konzelmann, Torsten Rendler, Ville Bergholm +9
We present an optimized scheme for nanoscale measurements of temperature in a complex environment using the nitrogen-vacancy center in nanodiamonds. To this end we combine a Ramsey…
An Extended Volume of Fluid Method and its Application to Single Bubbles Rising in a Viscoelastic Liquid
Matthias Niethammer, Günter Brenn, Holger Marschall +1
An extended volume of fluid method is developed for two-phase direct numerical simulations of systems with one viscoelastic and one Newtonian phase. A complete set of governing equ…