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Analysis of density matrix reconstruction in NMR quantum computing
Long, GL; Yan, HY; Sun, Y; Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
2001
发表期刊JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS
ISSN1464-4266
卷号3期号:6页码:376-381
摘要Reconstruction of density matrices is important in NMR quantum computing. An analysis is made for a 2-qubit system using the error matrix method. It is found that the state tomography method determines well the parameters that are necessary for reconstructing the density matrix in NMR quantum computations. Analysis is also made for a simplified state tomography procedure that uses fewer read-outs. The result of this analysis with the error matrix method demonstrates that a satisfactory accuracy in the density matrix reconstruction can be achieved even in a measurement with the number of read-outs being largely reduced.
部门归属Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China; Key Lab Quantum Informat & Measurement, MOE, Beijing 100084, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Tsing Hua Univ, Ctr Atom Mol & Nano Sci, Beijing 100080, Peoples R China; Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
关键词Stern-gerlach Measurements Discrete Wigner Function Deutsch-jozsa Algorithm Spin-s Search Algorithm State Tomography Implementation Computation Resonance
学科领域Physics
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收录类别SCI
WOS记录号WOS:000173431200005
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被引频次:37[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13634
专题理论物理所1978-2010年知识产出
通讯作者Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
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Long, GL,Yan, HY,Sun, Y,et al. Analysis of density matrix reconstruction in NMR quantum computing[J]. JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS,2001,3(6):376-381.
APA Long, GL,Yan, HY,Sun, Y,&Long, GL , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2001).Analysis of density matrix reconstruction in NMR quantum computing.JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS,3(6),376-381.
MLA Long, GL,et al."Analysis of density matrix reconstruction in NMR quantum computing".JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS 3.6(2001):376-381.
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