High-fidelity molecular quantum logic gates resilient to interaction fluctuation
The research demonstrates a high-fidelity controlled-phase gate for trapped polar molecules using two global microwave pulses assisted by single-qubit gates. This gate is robust against uncertainty in dipole-dipole interactions because it avoids populating DDI-coupled states, making it fully tunable via pulse phases. A quantum mechanical study confirms fidelities exceeding 0.9999 under typical experimental conditions.