The spin degree of freedom of an electron or a nucleus is one of the most basic properties of
nature and functions as an excellent qubit, as it provides a natural two-level system that is …

Quantum computation features known examples of hardware acceleration for certain
problems, but is challenging to realize because of its susceptibility to small errors from noise …

Long-ranged coherent qubit coupling is a missing function block for scaling up spin qubit
based quantum computing solutions. Spin-coherent conveyor-mode electron-shuttling could …

Charge noise in the host semiconductor degrades the performance of spin-qubits and poses
an obstacle to control large quantum processors. However, it is challenging to engineer the …

We detect correlations in qubit-energy fluctuations of non-neighboring qubits defined in
isotopically purified Si/Si-Ge quantum dots. At low frequencies (where the noise is …

Abstract In Si/SiGe heterostructures, the low-lying excited valley state seriously limits the
operability and scalability of electron spin qubits. For characterizing and understanding the …

Any architecture for practical quantum computing must be scalable. An attractive approach is
to create multiple cores, computing regions of fixed size that are well spaced but interlinked …

The prevalence of quantum crosstalk in current quantum devices poses challenges for
achieving high-fidelity quantum logic operations and reliable quantum processing. Through …

Progress in fabrication of semiconductor and superconductor qubits has greatly diminished
the number of decohering defects, thus decreasing the devastating low-frequency 1/f noise …

Spin–orbit effects, inherent to electrons confined in quantum dots at a silicon heterointerface,
provide a means to control electron spin qubits without the added complexity of on-chip …