A general framework for recursive decompositions of unitary quantum evolutions
A general framework for recursive decompositions of unitary quantum evolutions
复制标题
酉量子演化递归分解的通用框架
DOI:
10.1088/1751-8113/41/15/155302
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
Jonathan D. H. Smith
中科院分区:
文献类型:
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作者:
M. Daǧlı;D. D’Alessandro;Jonathan D. H. Smith
Decompositions of the unitary group U(n) are useful tools in quantum information theory as they allow one to decompose unitary evolutions into local evolutions and evolutions causing entanglement. Several recursive decompositions have been proposed in the literature to express unitary operators as products of simple operators with properties relevant in entanglement dynamics. In this paper, using the concept of grading of a Lie algebra, we cast these decompositions in a unifying scheme and show how new recursive decompositions can be obtained. In particular, we propose a new recursive decomposition of the unitary operator on N qubits, and give a numerical example.
DOI:
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发表时间:
2007
期刊:
影响因子:
--
作者:
H. Ohno;et. al.;H. Ohno;H. Ohno;H. Ohno;H. Ohno;大野 博道;大野 博道
通讯作者:
大野 博道