Direct measurement on the geometric phase of a double quantum dot qubit via quantum point contact device

We propose a direct measurement scheme to read out the geometric phase of a coupled double quantum dot system via a quantum point contact(QPC) device. An effective expression of the geometric phase has been derived, which relates the geometric phase of the double quantum dot qubit to the current thr...

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Bibliographic Details
Main Authors: Liu, Bao, Zhang, Feng-Yang, Song, Jie, Song, He-Shan
Format: Online
Language:English
Published: Nature Publishing Group 2015
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4484493/