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Endohedral metallofullerene as molecular high spin qubit: diverse Rabi cycles in Gd2@C79N

Abstract:
An anisotropic high-spin qubit with long coherence time could scale the quantum system up. It has been proposed that Grover's algorithm can be implemented in such systems. Dimetallic aza[80]fullerenes M2@C79N (M = Y or Gd) possess an unpaired electron located between two metal ions, offering an opportunity to manipulate spin(s) protected in the cage for quantum information processing. Herein, we report the crystallographic determination of Gd2@C79N for the first time. This molecular magnet with a collective high-spin ground state (S = 15/2) generated by strong magnetic coupling (JGd-Rad = 350 ± 20 cm-1) has been unambiguously validated by magnetic susceptibility experiments. Gd2@C79N has quantum coherence and diverse Rabi cycles, allowing arbitrary superposition state manipulation between each adjacent level. The phase memory time reaches 5 μs at 5 K by dynamic decoupling. This molecule fulfills the requirements of Grover's searching algorithm proposed by Leuenberger and Loss.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/jacs.7b12170

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Condensed Matter Physics
Role:
Author


More from this funder
Grant:
Young Elite Scientist Sponsorship Program grant no. YESS20150011
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Grant:
2013CB933401, 2013CB933402,
2017YFA024901
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Grant:
91422302,21471010, 21621061,
21601005


Publisher:
American Chemical Society
Journal:
Journal of the American Chemical Society More from this journal
Volume:
140
Issue:
3
Pages:
1123-1130
Publication date:
2017-12-22
DOI:
EISSN:
1520-5126
ISSN:
0002-7863
Pmid:
29272584


Language:
English
Pubs id:
pubs:817615
UUID:
uuid:cba59e5f-1f80-4563-b0a0-4b7e43a6bc28
Local pid:
pubs:817615
Source identifiers:
817615
Deposit date:
2018-04-24

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