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Efficient scheme for initializing a quantum register with an arbitrary superposed state
Long, GL; Sun, Y; Long, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
2001
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号64期号:1页码:-
摘要Preparation of a quantum register is an important step in quantum computation and quantum information processing. It is straightforward to build a simple quantum state such as \i(1)i(2)...i(n)> with i(j) being either 0 or 1, but it is a nontrivial task to construct an arbitrary superposed quantum state. We present a scheme that can most generally initialize a quantum register with an arbitrary superposition of basis states. Implementation of this scheme requires O(Nn(2)) standard 1- and 2-bit gate operations, without introducing additional quantum bits. Application of the scheme in some special cases is discussed.
部门归属Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China; Tsinghua Univ, Lab Quantum Informat & Measurement, Key Lab MOE, Beijing 100084, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
关键词Computation Universal Networks Computer Gates
学科领域Physics
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收录类别SCI
WOS记录号WOS:000169711400135
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被引频次:40[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/311006/12712
专题理论物理所1978-2010年知识产出
通讯作者Long, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
推荐引用方式
GB/T 7714
Long, GL,Sun, Y,Long, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.. Efficient scheme for initializing a quantum register with an arbitrary superposed state[J]. PHYSICAL REVIEW A,2001,64(1):-.
APA Long, GL,Sun, Y,&Long, GL , Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China..(2001).Efficient scheme for initializing a quantum register with an arbitrary superposed state.PHYSICAL REVIEW A,64(1),-.
MLA Long, GL,et al."Efficient scheme for initializing a quantum register with an arbitrary superposed state".PHYSICAL REVIEW A 64.1(2001):-.
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