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 …

BACKGROUND The past two decades have seen intense efforts aimed at building quantum
computing hardware with the potential to solve problems that are intractable on classical …

Fault-tolerant quantum computers that can solve hard problems rely on quantum error
correction. One of the most promising error correction codes is the surface code, which …

The future development of quantum technologies relies on creating and manipulating
quantum systems of increasing complexity, with key applications in computation, simulation …

Learning a many-body Hamiltonian from its dynamics is a fundamental problem in physics.
In this Letter, we propose the first algorithm to achieve the Heisenberg limit for learning an …

Abstract This Technical Review collects values of selected performance characteristics of
semiconductor spin qubits defined in electrically controlled nanostructures. The …

Universal quantum computation will require qubit technology based on a scalable platform,
together with quantum error correction protocols that place strict limits on the maximum …

Scaling up invariably error-prone quantum processors is a formidable challenge. Although
quantum error correction ultimately promises fault-tolerant operation, the required qubit …

Semiconductor spins are one of the few qubit realizations that remain a serious candidate
for the implementation of large-scale quantum circuits. Excellent scalability is often argued …

Spin qubits are considered to be among the most promising candidates for building a
quantum processor. Group IV hole spin qubits are particularly interesting owing to their ease …