Researchers Link Energy Loss to Quantum Gate Error Rates

A fundamental link exists between energy dissipation in macroscopic devices controlling quantum systems and errors arising during that control; previous investigations largely focused on energy costs within the quantum system itself. Suppressing these errors typically requires increased dissipation from the controller, energy lost while taming fluctuations inherent in classical control apparatuses. This understanding applies particularly well to fast, high-fidelity operations using shortcuts to adiabaticity techniques. Controlling qubits demands energy from everyday devices; however, that process also creates unwanted noise…