Quantum bits (qubits) with long coherence times are an important element for the
implementation of medium-and large-scale quantum computers. In the case of …

Quantum computing architectures are on the verge of scalability, a key requirement for the
implementation of a universal quantum computer. The next stage in this quest is the …

Quantum computers could potentially solve problems that are considered intractable using
even the fastest conventional supercomputers [1, 2]. The fundamental component of a …

Substrate material imperfections and surface losses are one of the major factors limiting
superconducting quantum circuitry from reaching the scale and complexity required to build …

Single-crystalline aluminum (Al) films were grown on Si (1 1 1) substrates by molecular
beam epitaxy to study the growth mechanism and demonstrate the role of interface …

The large Landé g factor, high spin-orbit coupling, and low effective mass of the two-
dimensional electron gas in InSb quantum wells combined with proximal superconductivity …

Among superconductor/semiconductor hybrid structures, in situ aluminum (Al) grown on
InGaAs/InAs is widely pursued for the experimental realization of Majorana Zero Mode …

States of confined electrons in semiconductors are promising candidates for quantum bits
with high controllability, scalability, and coherence. Particularly, spin quantum dots offer …

The topics of this thesis are based on circuit quantum electrodynamics (cQED), a theoretical
and experimental platform allowing the study of light--matter interaction. This platform is rich …

Single-crystalline aluminum (Al) films are grown on GaAs (100) substrates by molecular
beam epitaxy. The Al/GaAs interface is modified by ErAs insertion, and the Al quality is …