Ultra-dispersive resonator readout of a quantum-dot qubit using longitudinal coupling

• URL: http://arxiv.org/abs/2407.08869v2
• Date: Fri, 19 Jul 2024 14:57:49 GMT
• Title: Ultra-dispersive resonator readout of a quantum-dot qubit using longitudinal coupling
• Authors: Benjamin Harpt, J. Corrigan, Nathan Holman, Piotr Marciniec, D. Rosenberg, D. Yost, R. Das, Rusko Ruskov, Charles Tahan, William D. Oliver, R. McDermott, Mark Friesen, M. A. Eriksson,
• Abstract summary: We perform readout of a quantum-dot hybrid qubit coupled to a superconducting resonator through a parametric, longitudinal interaction mechanism. Our experiments are performed with the qubit and resonator frequencies detuned by $sim$10 GHz, demonstrating that longitudinal coupling can facilitate semiconductor qubit operation in the 'ultra-dispersive' regime of circuit quantum electrodynamics.
• Score: 0.20742830443146304
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We perform readout of a quantum-dot hybrid qubit coupled to a superconducting resonator through a parametric, longitudinal interaction mechanism. Our experiments are performed with the qubit and resonator frequencies detuned by $\sim$10 GHz, demonstrating that longitudinal coupling can facilitate semiconductor qubit operation in the 'ultra-dispersive' regime of circuit quantum electrodynamics.

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