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arXiv 0811.1448math.CTmath.QAquant-ph
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Hilbert范畴的一个嵌入定理

An embedding theorem for Hilbert categories

Chris Heunen

摘要:

我们公理化地定义(前)希尔伯特范畴。这些公理类似于monoidal阿贝尔范畴的公理,只是增加了一个对合函子。然后证明了嵌入定理:任何局部小的预希尔伯特范畴的monoidal单位是一个简单的生成元嵌入(弱)monoidally到范畴的预希尔伯特空间和伴随映射,保持伴随态射和所有有限(co)的限制。一个重要的中间结果是这样一个范畴中的标量必然形成一个对合域。在希尔伯特范畴的情况下,嵌入扩展到希尔伯特空间和连续线性映射的范畴。(前)希尔伯特范畴的公理比在公理化2-希尔伯特空间的其他方法中找到的公理弱。既不以浓缩也不以复杂的基本场为前提。在导言中将与其他方法进行比较。

英文摘要:

We axiomatically define (pre-)Hilbert categories. The axioms resemble those for monoidal Abelian categories with the addition of an involutive functor. We then prove embedding theorems: any locally small pre-Hilbert category whose monoidal unit is a simple generator embeds (weakly) monoidally into the category of pre-Hilbert spaces and adjointable maps, preserving adjoint morphisms and all finite (co)limits. An intermediate result that is important in its own right is that the scalars in such a category necessarily form an involutive field. In case of a Hilbert category, the embedding extends to the category of Hilbert spaces and continuous linear maps. The axioms for (pre-)Hilbert categories are weaker than the axioms found in other approaches to axiomatizing 2-Hilbert spaces. Neither enrichment nor a complex base field is presupposed. A comparison to other approaches will be made in the introduction.

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