Since the first observation of coherent quantum behaviour in a superconducting qubit, now
more than 20 years ago, there have been substantial developments in the field of …

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

Delivering on the revolutionary promise of a universal quantum computer will require
processors with millions of quantum bits (qubits),–. In superconducting quantum processors …

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 …

Implementation of an error-corrected quantum computer is believed to require a quantum
processor with a million or more physical qubits, and, in order to run such a processor, a …

Single flux quantum (SFQ) digital logic has been proposed for the scalable control of next-
generation superconducting-qubit arrays. In the initial implementation, SFQ-based gate …

Current state-of-the-art superconducting microwave qubits are cooled to extremely low
temperatures to avoid sources of decoherence. Higher qubit operating temperatures would …

While a large number of algorithms for optimizing quantum dynamics for different objectives
have been developed, a common limitation is the reliance on good initial guesses, being …

Scaling of quantum computers to fault-tolerant levels relies critically on the integration of
energy-efficient, stable, and reproducible qubit control and readout electronics. In …

Conventional semiconductor-based digital electronics, with complementary metal oxide
semiconductor (CMOS) technology as the primary example, has experienced meteoric …