Generation of three-qubit Greenberger–Horne–Zeilinger states of superconducting qubits by using dressed states - Details

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Abstract：

Combining　the　advantages　of　the　dressed　states　and　superconducting　quantum　interference　device　(SQUID)　qubits,　we　propose　an　efficient　scheme　to　generate　Greenberger–Horne–Zeilinger　(GHZ)　states　for　three　SQUID　qubits.　Firstly,　we　elaborate　how　to　generate　GHZ　states　of　three　SQUID　qubits　by　choosing　a　set　of　dressed　states　suitably.　Then,　we　compare　the　scheme　by　using　dressed　states　with　that　via　the　adiabatic　passage.　Lastly,　the　influence　of　various　decoherence　factors,　such　as　cavity　decay,　spontaneous　emission　and　dephasing,　is　analyzed　numerically.　All　of　the　results　show　that　the　GHZ　state　can　be　obtained　fast　and　with　high　fidelity　and　that　the　present　scheme　is　robust　against　the　cavity　decay　and　spontaneous　emission.　In　addition,　our　scheme　is　more　stable　against　the　dephasing　than　the　adiabatic　scheme.　©　2017,　Springer　Science+Business　Media,　LLC.

Keyword：

Dressed state; Greenberger–Horne–Zeilinger state; Shortcut to adiabatic passage; Superconducting quantum interference device

Community：

[ 1 ] [Zhang, X.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 2 ] [Zhang, X.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 3 ] [Chen, Y.-H.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 4 ] [Chen, Y.-H.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 5 ] [Shi, Z.-C.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Shi, Z.-C.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China
[ 7 ] [Shan, W.-J.]School of General Education, Jiangxi Vocational College of Industry and Engineering, Pingxiang, 337055, China
[ 8 ] [Song, J.]Department of Physics, Harbin Institute of Technology, Harbin, 150001, China
[ 9 ] [Xia, Y.]Department of Physics, Fuzhou University, Fuzhou, 350116, China
[ 10 ] [Xia, Y.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address：

[Shi, Z.-C.]Fujian Key Laboratory of Quantum Information and Quantum Optics, Fuzhou UniversityChina

Email：

szc2014@yeah.net

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Source ：

Quantum Information Processing

ISSN： 1570-0755

Year： 2017

Issue： 12

Volume： 16

2 . 2 8 3

JCR@2017

2 . 2 0 0

JCR@2023

ESI HC Threshold：170

JCR Journal Grade：1

CAS Journal Grade：2

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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