Quantum state transfer in spin chains via shortcuts to adiabaticity - Details

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Based　on　shortcuts　to　adiabaticity　and　quantum　Zeno　dynamics,　we　present　a　protocol　to　implement　quantum　state　transfer　(QST)　in　a　quantum　spin-12　chain.　In　the　protocol,　the　complex　Hamiltonian　of　an　N-site　system　is　simplified,　and　a　simple　effective　Hamiltonian　is　present.　It　is　shown　that　only　the　control　of　the　coupling　strengths　between　the　boundary　spins　and　the　bulk　spins　are　required　for　QST.　Numerical　simulations　demonstrate　that　the　protocol　possesses　high　efficiency　and　is　robust　against　the　decay　and　the　fluctuations　of　the　control　fields.　The　protocol　might　provide　an　alternative　choice　for　transferring　quantum　states　via　spin　chain　systems.　©　2018　American　Physical　Society.

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[ 1 ] [Huang, B.-H.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Huang, B.-H.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Kang, Y.-H.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Kang, Y.-H.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Chen, Y.-H.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Chen, Y.-H.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Shi, Z.-C.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 8 ] [Shi, Z.-C.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 9 ] [Song, J.]Department of Physics, Harbin Institute of Technology, Harbin, 150001, China
[ 10 ] [Xia, Y.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 11 ] [Xia, Y.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China

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Physical Review A

ISSN： 2469-9926

Year： 2018

Issue： 1

Volume： 97

2 . 9 0 7

JCR@2018

2 . 6 0 0

JCR@2023

ESI HC Threshold：158

JCR Journal Grade：2

CAS Journal Grade：2

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ESI Highly Cited Papers on the List： 0 Unfold All

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