Bichromatic Rabi Control of Semiconductor Qubits

Abstract

Electrically driven spin resonance is a powerful technique for controlling semiconductor spin qubits. However, it faces challenges in qubit addressability and off-resonance driving in larger systems. We demonstrate coherent bichromatic Rabi control of quantum dot hole spin qubits, offering a spatially selective approach for large qubit arrays. By applying simultaneous microwave bursts to different gate electrodes, we observe multichromatic resonance lines and resonance anticrossings that are caused by the ac Stark shift. Our theoretical framework aligns with experimental data, highlighting interdot motion as the dominant mechanism for bichromatic driving.

5 pages, 4 figures

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• Quantum Phases of Matter on a 256-Atom Programmable Quantum Simulator
• Semiconductor Spin Qubits
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• Semiconductor Qubits In Practice
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• Hole spin manipulation in inhomogeneous and non-separable electric fields
• Implementation of the SMART protocol for global qubit control in silicon
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Cited by in corpus (11)

• Operating semiconductor quantum processors with hopping spins
• High-fidelity spin qubit shuttling via large spin-orbit interaction
• Dephasing of planar Ge hole spin qubits due to 1/$\text{f}$ charge noise
• A spinless spin qubit
• Parametric longitudinal coupling of a semiconductor charge qubit and a RF resonator
• All-electrical operation of a spin qubit coupled to a high-Q resonator
• Cancelling second order frequency shifts in Ge hole spin qubits via bichromatic control
• Quantum gates in coupled quantum dots controlled by coupling modulation
• Limitations of the $g$-tensor formalism of semiconductor spin qubits
• Theory of Multi-photon Processes for Applications in Quantum Control
• Comparison of spin-qubit architectures for quantum error-correcting codes