Science Highlights

A Robust, Hydrogen-Free Telecom Qubit in Silicon
C2QA researchers identified a robust new qubit in silicon, called the CN center.

Reshaping Noisy Quantum Channels to Boost Entanglement
C2QA researchers developed a new adaptive framework that systematically transforms noisy quantum channels into more effective ones.

Identifying and Mitigating Vortex Loss in Tantalum Devices
Researchers identified a performance-limiting mechanism in superconducting quantum devices and demonstrated optimization strategies.

Intrinsic Nonlinearity of PtSi Constriction Josephson Junctions
C2QA researchers built constriction junctions using a silicon-compatible material — and showed that they have substantial intrinsic nonlinearity.

Fast Superconducting Qubit Control Using Subharmonic Drives
C2QA researchers demonstrated a new qubit control method that enables fast, high-fidelity operations while reducing heating.

Testing entanglement distillation with realistic noise
C2QA researchers demonstrated entanglement distillation on IBM superconducting quantum hardware.