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

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https://arxiv.org/pdf/1812.04681.pdfPermanent Link
http://hdl.handle.net/11603/12689Metadata
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2018Type of Work
6 pagesText
journal articles preprints
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.pdfRights
This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.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%.