Maintaining or even improving gate performance with growing numbers of parallel
controlled qubits is a vital requirement for fault-tolerant quantum computing. For …

Enhancing the capabilities of superconducting quantum hardware, requires higher gate
fidelities and lower crosstalk, particularly in larger-scale devices, in which qubits are coupled …

The superconducting fluxonium qubit has a great potential for high-fidelity quantum gates
with its long coherence times and strong anharmonicity at the half-flux-quantum sweet spot …

Noise-biased qubits are a promising route toward significantly reducing the hardware
overhead associated with quantum error correction. The squeezed-cat code, a nonlocal …

Novel qubits with intrinsic noise protection constitute a promising route for improving the
coherence of quantum information in superconducting circuits. However, many protected …

Although two-qubit entangling gates are necessary for universal quantum computing, they
are notoriously difficult to implement with high fidelity. Recently, tunable couplers have …

Near-term quantum computers are primarily limited by errors in quantum operations (or
gates) between two quantum bits (or qubits). A physical machine typically provides a set of …

High-fidelity two-qubit gates are crucial for the scalability of superconducting quantum
processors. While quantum information processing is typically based on qubits, qutrits (or …

An off-resonant error for a driven quantum system refers to interactions due to the input
drives having nonzero spectral overlap with unwanted system transitions. For the cross …

We consider a pair of quantum dot-based spin qubits that interact via microwave photons in
a superconducting cavity and that are also parametrically driven by separate external …