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arXiv · 1812.04681

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

Arman A. Setser·Jason P. Kestner
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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 $\sim$50ns without having to simultaneously change tunnel couplings. Simulations of the entangling operation in the presence of experimentally realistic charge noise yield two-qubit fidelities over 90%.

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Arman A. Setser, Jason P. Kestner. 2018-12-11. Rapid adiabatic gating for capacitively coupled quantum dot hybrid qubits without barrier control. https://doi.org/10.1103/physrevb.99.195403

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