Phase driving hole spin qubits
- URL: http://arxiv.org/abs/2303.03350v1
- Date: Mon, 6 Mar 2023 18:37:31 GMT
- Title: Phase driving hole spin qubits
- Authors: Stefano Bosco, Simon Geyer, Leon C. Camenzind, Rafael S. Eggli,
Andreas Fuhrer, Richard J. Warburton, Dominik M. Zumb\"uhl, J. Carlos Egues,
Andreas V. Kuhlmann, Daniel Loss
- Abstract summary: We introduce an alternative driving mechanism of hole spin qubits, where a far-detuned oscillating field couples to the qubit phase.
Phase driving at radio frequencies induces highly non-trivial spin dynamics, violating the Rabi resonance condition.
We demonstrate a controllable suppression of resonant Rabi oscillations, and their revivals at tunable sidebands.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The spin-orbit interaction in spin qubits enables spin-flip transitions,
resulting in Rabi oscillations when an external microwave field is resonant
with the qubit frequency. Here, we introduce an alternative driving mechanism
of hole spin qubits, where a far-detuned oscillating field couples to the qubit
phase. Phase driving at radio frequencies, orders of magnitude slower than the
microwave qubit frequency, induces highly non-trivial spin dynamics, violating
the Rabi resonance condition. By using a qubit integrated in a silicon fin
field-effect transistor (Si FinFET), we demonstrate a controllable suppression
of resonant Rabi oscillations, and their revivals at tunable sidebands. These
sidebands enable alternative qubit control schemes using global fields and
local far-detuned pulses, facilitating the design of dense large-scale qubit
architectures with local qubit addressability. Phase driving also decouples
Rabi oscillations from noise, an effect due to a gapped Floquet spectrum and
can enable Floquet engineering high-fidelity gates in future quantum
processors.
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