‘Plasmonium’ represents a significant advancement in quantum computing, featuring high-performance metrics and smaller physical size. Highlights:

• Increased anharmonicity by 50% and reduced size by 60% compared to traditional qubits.
• High gate fidelities demonstrated in fabricated units. Important for the progression of scalable quantum computers, this qubit design introduces a novel approach for handling quantum information. Potential applications include more compact and efficient quantum processors, thereby expanding the scope and capabilities of quantum computing infrastructure.