Single atom quantum gate uses fewer qubits

Scientists have created a quantum logic gate using a single atom, drastically reducing the number of physical qubits needed for quantum computing. This breakthrough utilizes the GKP error-correction code, encoding quantum information within the vibrations of a trapped ion, enabling entanglement and more efficient operation. The research, published August 21, marks a significant step towards scalable quantum computers by addressing hardware demands and demonstrating universal quantum gates for GKP qubits.