THE COUPLING OF A DOUBLE QUANTUM DOT TO MICROWAVE PHOTONS

Sammanfattning: In this study, we derive a mathematical description of a double quantum dot (DQD) embedded in a microwave resonator starting from classical electrostatics. DQDs are a promising platform for building quantum computers and have important applications in quantum sensing and the study of light-matter interactions. Recently, a higher-order sweet spot was discovered, where the DQD is theorized to have improved coherence time. We investigate the coupling strength between the microwave photons and the DQD operating at the higher-order sweet spot, and determine the Rabi frequencies for the case of a strongly driven oscillator in resonance with the DQD energy splitting. This work provides a useful foundation for further research on DQDs and their potential applications in quantum computing and other fields.