Robust Quantum State Transfer in Random Unpolarized Spin Chains

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Robust Quantum State Transfer in Random Unpolarized Spin Chains

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Title: Robust Quantum State Transfer in Random Unpolarized Spin Chains
Author: Gong, Zhe-Xuan; Zhai, Alex; Yao, Norman Ying; Jiang, Liang; Gorshkov, Alexey Vyacheslavovich; Duan, Luming; Lukin, Mikhail D.

Note: Order does not necessarily reflect citation order of authors.

Citation: Yao, N. Y., L. Jiang, A. V. Gorshkov, Z.-X. Gong, A. Zhai, L.-M. Duan, and M. D. Lukin. 2011. Robust quantum state transfer in random unpolarized spin chains. Physical Review Letters 106(4): 040505.
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Abstract: We propose and analyze a new approach for quantum state transfer between remote spin qubits. Specifically, we demonstrate that coherent quantum coupling between remote qubits can be achieved via certain classes of random, unpolarized (infinite temperature) spin chains. Our method is robust to coupling-strength disorder and does not require manipulation or control over individual spins. In principle, it can be used to attain perfect state transfer over an arbitrarily long range via purely Hamiltonian evolution and may be particularly applicable in a solid-state quantum information processor. As an example, we demonstrate that it can be used to attain strong coherent coupling between nitrogen-vacancy centers separated by micrometer distances at room temperature. Realistic imperfections and decoherence effects are analyzed.
Published Version: doi:10.1103/PhysRevLett.106.040505
Other Sources: http://arxiv.org/abs/1011.2762
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8000898

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  • FAS Scholarly Articles [7501]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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