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arXiv math-ph/0110028math-phmath.GRmath.MP
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关于量子猫映射的乘性

On the multiplicativity of quantum cat maps

Francesco Mezzadri

摘要:

两个环面的线性自同构(猫映射)的量子力学传播子决定了θ群的投影幺正表示,称为韦伊表示。我们证明,存在一个适当的选择阶段的传播,定义了一个适当的表示的θ组。我们也给出了明确的公式在此表示的传播。

英文摘要:

The quantum mechanical propagators of the linear automorphisms of the two-torus (cat maps) determine a projective unitary representation of the theta group, known as Weil's representation. We prove that there exists an appropriate choice of phases in the propagators that defines a proper representation of the theta group. We also give explicit formulae for the propagators in this representation.

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