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arXiv 1801.01765hep-th
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$κ$ -Minkowski非对易时空中的Pauli-Jordan函数和标量场量子化

Pauli-Jordan Function and Scalar Field Quantization in $κ$-Minkowski Noncommutative Spacetime

Flavio Mercati, Matteo Sergola

摘要:

我们研究了一个非对易背景时空$κ$ -Minkowski上的复自由标量场理论。特别是我们解决的问题,第二次量化。我们以显式协变的方式得到了产生和湮灭算子的代数。我们的程序不使用规范/哈密顿公式,这在我们的上下文中是不好定义的。相反,我们通过引入一个非对易的Pauli-Jordan函数,以时空协变的方式工作。这个函数是通过考虑我们的非对易时空的对称性所施加的约束,作为普通的对易时空的推广而得到的。利用Pauli-Jordan函数研究了$κ$ -Minkowski时空中光锥的结构,并得出了信号超光速传播的结论。

英文摘要:

We study a complex free scalar field theory on a noncommutative background spacetime called $κ$-Minkowski. In particular we address the problem of second quantization. We obtain the algebra of creation and annihilation operators in an explicitly covariant way. Our procedure does not use canonical/Hamiltonian formulations, which turn out to be ill-defined in our context. Instead we work in a spacetime covariant way by introducing a noncommutative Pauli-Jordan function. This function is obtained as a generalization of the ordinary, commutative, one by taking into account the constraints imposed by the symmetries of our noncommutative spacetime. The Pauli-Jordan function is later employed to study the structure of the light cone in $κ$-Minkowski spacetime, and to draw conclusions on the superluminal propagation of signals.

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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