In a breakthrough for antimatter research, the BASE collaboration at CERN has kept an antiproton—the antimatter counterpart ...

Using a process known as “magic state distillation” in logical qubits will help make future quantum computers more fault-tolerant.

The result points to a significant advance in computing power, prompting researchers to replicate the groundbreaking measurement. On July 8, 2025, researchers at Aalto University in Finland reported a ...

Coveney: The scale of electronic structure calculations feasible on current or near-term quantum hardware is constrained by several inherent limitations, including coherence time, qubit count and ...

Recently, kernel methods for nonlinear processing have been gained widely attention. The reproducing kernel Hilbert space is the fundamental in this method. No adaptive kernel has been developed, so ...

However, creating a single logical qubit traditionally requires dozens or even hundreds of physical qubits, significantly increasing the size, complexity and energy cost of a quantum computer.

Extended Kalman-Yakubovich-Popov Lemma in a Hilbert Space and Fenchel Duality. Abstract: The Kalman-Yakubovich-Popov (KYP) lemma is extended with new conditions that are equivalent to solvability of ...