Recycling of a quantum field and optimal states for single-qubit rotations
Shanon L. Vuglar, Julio R. Gea-Banacloche · Physical Review A · 2024
The authors introduce a protocol to generate the electromagnetic field state that is optimal for controlling a given qubit rotation. The protocol, based on the interaction of the field with ancilla qubits, allows for field ``recycling'' and could potentially reduce error rates and improve energy efficiency in quantum computing schemes.