Graphane with carbon dimer defects: Robust in-gap states and a scalable two-dimensional platform for quantum computation
Graphane with carbon dimer defects: Robust in-gap states and a scalable two-dimensional platform for quantum computation
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具有碳二聚体缺陷的石墨烷:鲁棒的带隙态和用于量子计算的可扩展二维平台
DOI:
10.1103/physrevmaterials.3.024003
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发表时间:
2018-12
影响因子:
3.4
通讯作者:
Ting C S
中科院分区:
文献类型:
--
作者:
Hao Lei;Lu Hong Yan;Ting C S
We study the energy level structures of the defective graphane lattice, where a carbon dimer defect is created by removing the hydrogen atoms on two nearest-neighbor carbon sites. Robust defect states emerge inside the bulk insulating gap of graphane. While for the stoichiometric half-filled system there are two doubly degenerate defect levels, there are four nondegenerate and spin-polarized in-gap defect levels in the system with one electron less than half filling. A universal set of quantum gates can be realized in the defective graphane lattice, by triggering resonant transitions among the defect states via optical pulses and \emph{ac} magnetic fields. The sizable energy separation between the occupied and the empty in-gap states enables precise control at room temperature. The spatial locality of the in-gap states implies a qubit network of extremely high areal density. Based on these results, we propose that graphane as a unique platform could be used to construct the future all-purpose quantum computers.
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影响因子:
16.6
作者:
Chen, Xiao;Engle, Keary M.;Wang, Dong-Hui;Yu, Jin-Quan
通讯作者:
Yu, Jin-Quan
影响因子:
3.7
作者:
M. Thomsen;M. Ervasti;A. Harju;T. Pedersen
通讯作者:
M. Thomsen;M. Ervasti;A. Harju;T. Pedersen
影响因子:
8.6
作者:
Wehling, T. O.;Sasioglu, E.;Bluegel, S.
通讯作者:
Bluegel, S.
DOI:
10.1126/science.aaf7783
发表时间:
2016-09-02
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Zhang W;Wang F;McCann SD;Wang D;Chen P;Stahl SS;Liu G
通讯作者:
Liu G
影响因子:
4
作者:
Sahin, H.;Ataca, C.;Ciraci, S.
通讯作者:
Ciraci, S.