Quantum optics has emerged as a dynamic field at the forefront of scientific research and
technological innovation. By harnessing the unique properties of photons, quantum optics …

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 …

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

The control of cryogenic qubits in today's super-conducting quantum computer prototypes
presents significant scalability challenges due to the massive costs of generating/routing the …

Quantum computing is poised to solve practically useful problems which are computationally
intractable for classical supercomputers. However, the current generation of quantum …

Abstract Single-flux-quantum (SFQ) circuits have great potential in building cryogenic
quantum-classical interfaces for scaling up superconducting quantum processors. SFQ …

A device called the qubit energy tuner (QET), based on single flux quantum (SFQ) circuits,
has been proposed for Z control of superconducting qubits. The QET is created by improving …

We present a gradient-based method to construct high-fidelity, two-qubit quantum gates in a
system consisting of two transmon qubits coupled via a tunable coupler. In particular, we …

In the traditional approach to controlling superconducting qubits using microwave pulses,
the field of pulse shaping has emerged in order to assist in the removal of leakage and …

Scaling superconducting quantum processors to large qubit counts faces challenges in
control signal delivery, thermal management, and hardware complexity, particularly in …