A quantum dot-based frequency multiplier
- URL: http://arxiv.org/abs/2211.14127v1
- Date: Fri, 25 Nov 2022 14:09:30 GMT
- Title: A quantum dot-based frequency multiplier
- Authors: G. A. Oakes, L. Peri, L. Cochrane, F. Martins, L. Hutin, B. Bertrand,
M. Vinet, A. Gomez Saiz, C. J. B. Ford, C. G. Smith, M. F. Gonzalez-Zalba
- Abstract summary: We present a quantum dot-based radiofrequency multiplier operated at cryogenic temperatures.
We implement the multiplier in a multi-gate silicon nanowire transistor using two complementary device configurations.
Our results demonstrate a method for high-frequency conversion that could be readily integrated into silicon-based quantum computing systems.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Silicon offers the enticing opportunity to integrate hybrid quantum-classical
computing systems on a single platform. For qubit control and readout,
high-frequency signals are required. Therefore, devices that can facilitate its
generation are needed. Here, we present a quantum dot-based radiofrequency
multiplier operated at cryogenic temperatures. The device is based on the
non-linear capacitance-voltage characteristics of quantum dot systems arising
from their low-dimensional density of states. We implement the multiplier in a
multi-gate silicon nanowire transistor using two complementary device
configurations: a single quantum dot coupled to a charge reservoir and a
coupled double quantum dot. We study the harmonic voltage conversion as a
function of energy detuning, multiplication factor and harmonic phase noise and
find near ideal performance up to a multiplication factor of 10. Our results
demonstrate a method for high-frequency conversion that could be readily
integrated into silicon-based quantum computing systems and be applied to other
semiconductors.
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