Efficient electron transfer in quantum dot chains controlled by a cubic detuning profile via shortcuts to adiabaticity

• URL: http://arxiv.org/abs/2206.01805v1
• Date: Fri, 3 Jun 2022 20:23:08 GMT
• Title: Efficient electron transfer in quantum dot chains controlled by a cubic detuning profile via shortcuts to adiabaticity
• Authors: Mar\'ia E. Rus, Rodolfo H. Romero and Sergio S. Gomez
• Abstract summary: We study theoretically the control of shuttling of an electron along a linear chain of semiconductor quantum dots. A given fidelity can be set experimentally by controlling the maximum sweep energy and duration of the control pulse.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Long-distance fast and precise transfer of charge in semiconductor nanostructures is one of the goals for scalable electronic devices. We study theoretically the control of shuttling of an electron along a linear chain of semiconductor electrostatically-defined quantum dots by an electric field pulse with nonlinear time-dependent profile. We show that this essential nonlinearity along with shortcuts to adiabaticity techniques speed up the electron transfer with high fidelity, while still holding great robustness under spin-flip interactions and inhomogeneities in the couplings of the chain. A given fidelity can be set experimentally by controlling the maximum sweep energy and duration of the control pulse

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