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arXiv 1004.0929quant-phmath-phmath.MP
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SU非标准方法的计算基础(2)

Bases for qudits from a nonstandard approach to SU(2)

Maurice Robert Kibler

摘要:

利用角动量理论和su(2)李代数方法构造了与量子信息和量子计算相关的有限维Hilbert空间(d维)的基.我们报告了一个公式,用于在一个步骤中导出(1+p)p量子阱(即,重复应用该公式可以用来生成C^p中的互无偏基,其中d = p^e(e >或= 2)是一个素数的幂。在d = p^e的情形下,简要讨论了互无偏基与酉群SU(d)之间的联系.

英文摘要:

Bases of finite-dimensional Hilbert spaces (in dimension d) of relevance for quantum information and quantum computation are constructed from angular momentum theory and su(2) Lie algebraic methods. We report on a formula for deriving in one step the (1+p)p qupits (i.e., qudits with d = p a prime integer) of a complete set of 1+p mutually unbiased bases in C^p. Repeated application of the formula can be used for generating mutually unbiased bases in C^d with d = p^e (e > or = 2) a power of a prime integer. A connection between mutually unbiased bases and the unitary group SU(d) is briefly discussed in the case d = p^e.

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