Algorithm for automated tuning of a quantum dot into the single-electron regime
Maxime Lapointe-Major, Olivier Germain, Julien Camirand Lemyre, Dany Lachance-Quirion, Sophie Rochette, Félix Camirand Lemyre, Michel Pioro-Ladrière
Abstract
We report an algorithm designed to perform computer-automated tuning of a single quantum dot with a charge sensor. The algorithm performs an adaptive measurement sequence of subsized stability diagrams until the single-electron regime is identified and reached. For each measurement, the signal processing module removes the physical background of the charge sensor to generate a binary image of charge transitions. Then, the image analysis module identifies the position and number of lines using two line detection schemes that are robust to noise and missing data.
Topics & Concepts
Quantum dotElectronPhysicsCondensed matter physicsQuantum mechanicsStatistical physicsComputer scienceAlgorithmQuantum and electron transport phenomenaSemiconductor Quantum Structures and DevicesAdvancements in Semiconductor Devices and Circuit Design