Correlated spectrum of distant semiconductor qubits coupled by microwave photons
arXiv:2001.11303 · doi:10.1016/j.scib.2020.10.005
Abstract
We develop a new spectroscopic method to quickly and intuitively characterize the coupling of two microwave-photon-coupled semiconductor qubits via a high-impedance resonator. Highly distinctive and unique geometric patterns are revealed as we tune the qubit tunnel couplings relative to the frequency of the mediating photons. These patterns are in excellent agreement with a simulation using the Tavis-Cummings model, and allow us to readily identify different parameter regimes for both qubits in the detuning space. This method could potentially be an important component in the overall spectroscopic toolbox for quickly characterizing certain collective properties of multiple cavity QED coupled qubits.
13 pages, 4 figures
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- Coupling of hole double quantum dot in planar germanium to a microwave cavity
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- Implementation of geometric quantum gates on microwave-driven semiconductor charge qubits
- Coupling two charge qubits via a superconducting resonator operating in the resonant and dispersive regimes
- Tunable spectral narrowing enabling the functionality of graphene qubit circuits at room temperature