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arXiv 2401.03313hep-thquant-ph
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Unruh-De Witt 探测器、Bell-CHSH 不等式与 Tomita-Takesaki 理论

Unruh-De Witt detectors, Bell-CHSH inequality and Tomita-Takesaki theory

Fillipe M. Guedes, Marcelo S. Guimaraes, Itzhak Roditi, Silvio P. Sorella

AI总结:

本文利用 Tomita-Takesaki 模理论精确处理 Unruh-De Witt 自旋 1/2 探测器与实标量场的相互作用,并证明量子场相互作用会导致 Bell-CHSH 不等式违反程度减弱。

摘要:

通过将 Tomita-Takesaki 模理论应用于 Weyl 算子的 Von Neumann 代数,细致研究了 Unruh-De Witt 自旋 1/2 探测器与实标量场之间的相互作用。模理论的使用使得能够以精确方式对量子场自由度求迹。所得的密度矩阵被用于研究 Bell-CHSH 关联子。结果表明,由于与量子场的相互作用,Bell-CHSH 不等式的违反程度相较于不存在标量场的情形呈现出减弱。

英文摘要:

The interaction between Unruh-De Witt spin $1/2$ detectors and a real scalar field is scrutinized by making use of the Tomita-Takesaki modular theory as applied to the Von Neumann algebra of the Weyl operators. The use of the modular theory enables to evaluate in an exact way the trace over the quantum field degrees of freedom. The resulting density matrix is employed to the study of the Bell-CHSH correlator. It turns out that, as a consequence of the interaction with the quantum field, the violation of the Bell-CHSH inequality exhibits a decreasing as compared to the case in which the scalar field is absent.

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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