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Robust Multiple-Range Coherent Quantum State Transfer

delete2016-07-01
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OA
AI
陈
陈冰 (Bing Chen) *
P
Peng, Yan-Dong
L
Li, Yong
Q
Qian, Xiao-Feng *
DOI:10.1038/srep28886delete
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摘要

摘要

En 中文
We propose a multiple-range quantum communication channel to realize coherent two-way quantum state transport with high fidelity. In our scheme, an information carrier (a qubit) and its remote partner are both adiabatically coupled to the same data bus, i.e., an N-site tight-binding chain that has a single defect at the center. At the weak interaction regime, our system is effectively equivalent to a three level system of which a coherent superposition of the two carrier states constitutes a dark state. The adiabatic coupling allows a well controllable information exchange timing via the dark state between the two carriers. Numerical results show that our scheme is robust and efficient under practically inevitable perturbative defects of the data bus as well as environmental dephasing noise.
Keyword:
ADIABATIC PASSAGE
TRANSPORT
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Scientific Reports
IF:
3.9
论文数:
28.3W
被引数:
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机构

B
beijing computational science research center (csrc)
学者数:
859
论文数: 722
被引数: 2
C
Chinese Academy of Engineering Physics
学者数:
1.1W
论文数: 8.6K
被引数: 12
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引用论文

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