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von Neumann代数的Kochen-Specker定理

Kochen-Specker theorem for von Neumann algebras

Andreas Doering

摘要:

Kochen-Specker定理自1967年首次证明以来一直受到人们的热烈讨论。它是量子理论的核心不去定理之一,表明了某种隐态模型的不存在性。本文首先给出了一种新的非组合证明,证明了具有$I_{n}$型因子的量子系统是可观测量代数,包括$I_{\infty}$。然后,利用投影格$\mathcal{P(R)}$上二值测度的已知结果,证明了任意不含$I_{1}$和$I_{2}$型和项的von Neumann代数$\mathcal{R}$的Kochen-Specker定理.与Isham和Butterfield提出的预层公式进行了一些连接。

英文摘要:

The Kochen-Specker theorem has been discussed intensely ever since its original proof in 1967. It is one of the central no-go theorems of quantum theory, showing the non-existence of a certain kind of hidden states models. In this paper, we first offer a new, non-combinatorial proof for quantum systems with a type $I_{n}$ factor as algebra of observables, including $I_{\infty}$. Afterwards, we give a proof of the Kochen-Specker theorem for an arbitrary von Neumann algebra $\mathcal{R}$ without summands of types $I_{1}$ and $I_{2}$, using a known result on two-valued measures on the projection lattice $\mathcal{P(R)}$. Some connections with presheaf formulations as proposed by Isham and Butterfield are made.

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