Open AccessFast creation and transfer of coherence in triple quantum dots by using shortcuts to adiabaticity
Author(s) -
Yong-Ling Ban,
Lixin Jiang,
Yichao Li,
Linjun Wang,
Xi Chen
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.031137
Subject(s) - stimulated raman adiabatic passage , coherence (philosophical gambling strategy) , adiabatic process , diabatic , physics , quantum tunnelling , realization (probability) , quantum dot , quantum , coherence time , optics , quantum mechanics , computer science , statistics , mathematics
Motivated by the progress on shortcuts to adiabaticity, we propose three schemes for speeding up (fractional) stimulated Raman adiabatic passage, and achieving rapid and non-adiabatic creation and transfer of maximal coherence in a triple-quantum-dot system. These different but relevant protocols, designed from counter-diabatic driving, dress-state method, and resonant technique, require their own pumping fields, applied gate voltages and varying tunneling couplings between two spatially separated dots. Such fast and reliable shortcuts not only allow for feasibly experimental realization in solid-state architectures but also may have potential applications in quantum information processing and quantum control.