Rapid adiabatic gating for capacitively coupled quantum dot hybrid qubits without barrier control

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1812.04681.pdf (414.32 KB)

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https://arxiv.org/pdf/1812.04681.pdf

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http://hdl.handle.net/11603/12689

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2018

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journal articles preprints
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Citation of Original Publication

A. A. Setser and J. P. Kestner, Rapid adiabatic gating for capacitively coupled quantum dot hybrid qubits without barrier control, 2018, https://arxiv.org/pdf/1812.04681.pdf

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Subjects

adiabatic gating
coupled quantum
dot hybrid qubits
barrier control

Abstract

We theoretically examine the capacitive coupling between two quantum dot hybrid qubits, each consisting of three electrons in a double quantum dot, as a function of the energy detuning of the double dot potentials. We show that a shaped detuning pulse can produce a two-qubit maximally entangling operation in ~ 50ns without having to simultaneously change tunnel couplings. Sim- ulations of the entangling operation in the presence of experimentally realistic charge noise yield two-qubit delities over 90%.