Quantum computers have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

In recent years, hole-spin qubits based on semiconductor quantum dots have advanced at a
rapid pace. We first review the main potential advantages of these hole-spin qubits with …

Spin qubits defined by valence band hole states are attractive for quantum information
processing due to their inherent coupling to electric fields, enabling fast and scalable qubit …

We grow strained Ge/SiGe heterostructures by reduced-pressure chemical vapor deposition
on 100 mm Ge wafers. The use of Ge wafers as substrates for epitaxy enables high-quality …

We develop a method to fabricate an undoped Ge quantum well (QW) under a 32 nm
relaxed Si0. 2Ge0. 8 shallow barrier. The bottom barrier contains Si0. 2Ge0. 8 (650° C) and …

Hole-based spin qubits in strained planar germanium quantum wells have received
considerable attention due to their favorable properties and remarkable experimental …

Semiconductor spin qubits have gained increasing attention as a possible platform to host a
fault-tolerant quantum computer. First demonstrations of spin qubit arrays have been shown …

Semiconductor spin qubits demonstrated single-qubit gates with fidelities up to $99.9\% $
benchmarked in the single-qubit subspace. However, tomographic characterizations reveal …

Quantum error correction is a key challenge for the development of practical quantum
computers, a direction in which significant experimental progress has been made in recent …

In quantum computing, characterising the full noise profile of qubits can aid the efforts
towards increasing coherence times and fidelities by creating error mitigating techniques …