Tuning Inter-qubit Coupling Strengths by Sideband Driving

Abstract

The iSWAP operation between two qubits serves as a means to quantify the inter-qubit coupling strength. We examine the inter-qubit coupling strength when the qubit frequency is modulated at 80 MHz. The coupling strength between qubits, mediated by various sidebands generated from the frequency modulation, can be dynamically tuned, following the Bessel dependencies. This dynamically tunable coupling between qubits provides a straightforward approach to create a testing ground for versatile quantum models.