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arXiv 1210.4262quant-ph
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动力学和隐藏变量

Dynamics and Hidden Variables

Olivier Brunet

摘要:

我们研究了自旋为1/2的粒子的幺正演化如何在反事实的确定性环境中表现出来。更确切地说,通过用对应于某些测量的假定预先存在的结果(对应于三个泡利矩阵的那些)的三重值来表示这样的粒子的状态,我们分析了当应用一些酉门(即,Hadamard门、π/2移相器和受控非)时我们的表示的演变。然后,我们描述的三重态的EPR对的创建,并讨论这种表示符合量子力学的预测的可能性。最后,我们表明,这是不可能的,除非用于建立我们的模型的假设之一是下降。

英文摘要:

We study the way the unitary evolution of spin 1/2 particules can be represented in a counterfactual definiteness setting. More precisely, by representing the state of such a particule by a triplet of values corresponding to the supposedly pre-existing outcomes of some measurements (those corresponding to the three Pauli matrices), we analyse the evolution of our representation when some unitary gates (namely, the Hadamard gate, the π/2 phase shifter and the controlled-not) are applied. Then, we describe in terms of triplets the creation of an EPR pair and discuss the possibility of having this representation comply with the predictions of quantum mechanics. Finally, we show that this is not possible unless one of the assumptions used to build our model is dropped.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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