Zhou, Shen, Yuan, Jiayue, Wang, Zi-Yu, Ling, Kun, Fu, Peng-Xiang, Fang, Yu-Hui, Wang, Ye-Xin, Liu, Zheng, Porfyrakis, Kyriakos ORCID: https://orcid.org/0000-0003-1364-0261, Briggs, G. Andrew D., Gao, Song and Jiang, Shang-Da (2021) Implementation of quantum level addressability and geometric phase manipulation in aligned endohedral fullerene qudits. Angewandte Chemie International Edition, 61 (8):e202115263. ISSN 1433-7851 (Print), 1521-3773 (Online) (doi:10.1002/anie.202115263)

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Abstract

Endohedral nitrogen fullerenes have been proposed as building blocks for quantum information processing due to their long spin coherence time. However, addressability of the individual electron spin levels in such a multiplet system of 4S3/2 has never been achieved because of the molecular isotropy and transition degeneracy among the Zeeman levels. Herein, by molecular engineering, we lifted the degeneracy by zero-field splitting effects and made the multiple transitions addressable by a liquid-crystal-assisted method.The endohedral nitrogen fullerene derivatives with rigid addends of spiro structure and large aspect ratios of regioselective bis-addition improve the ordering of the spin ensemble. These samples empower endohedral-fullerene-based qudits, in which the transitions between the 4 electron spin levels were respectively addressed and coherently manipulated. The quantum geometric phase manipulation, which has long been proposed for the advantages in error tolerance and gating speed, was implemented in a pure electron spin system using molecules for the first time.

Item Type:	Article
Additional Information:	This article also appears in Hot Topic: Liquid Crystals.
Uncontrolled Keywords:	molecular qudits; endohedral nitrogen fullerenes; quantum information processing
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Related URLs:	Publisher
Last Modified:	04 Jan 2023 01:38
URI:	http://gala.gre.ac.uk/id/eprint/35178

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