5 papers
Exact Multi-Valley Envelope Function Theory of Valley Splitting in Si/SiGe Nanostructures
Lasse Ermoneit, Abel Thayil, Thomas Koprucki +1
Valley splitting in strained Si/SiGe quantum wells is a central parameter for silicon spin qubits and is commonly described with envelope-function and effective-mass theories. Thes…
Optimization of Si/SiGe Heterostructures for Large and Robust Valley Splitting in Silicon Qubits
Abel Thayil, Lasse Ermoneit, Lars R. Schreiber +2
Small and device-dependent valley splittings remain a key challenge for electron spin qubits in silicon (Si), directly limiting qubit fidelity, device uniformity, and the scalabili…
Numerical simulation of coherent spin-shuttling in a QuBus with charged defects
Nils Ciroth, Arnau Sala, Ran Xue +4
Recent advances in coherent conveyor-mode spin qubit shuttling are paving the way for large-scale quantum computing platforms with qubit connectivity achieved by spin qubit shuttle…
Towards a Knowledge Graph for Models and Algorithms in Applied Mathematics
Björn Schembera, Frank Wübbeling, Hendrik Kleikamp +8
Mathematical models and algorithms are an essential part of mathematical research data, as they are epistemically grounding numerical data. In order to represent models and algorit…
Theoretical study of the impact of carrier density screening on Urbach tail energies and optical polarization in (Al,Ga)N quantum well systems
Robert Finn, Michael O'Donovan, Thomas Koprucki +1
Aluminium Gallium Nitride ((Al,Ga)N) presents an ideal platform for designing ultra-violet (UV) light emitters across the entire UV spectral range. However, in the deep-UV spectral…