关于负能量密度和量子不等式的一点注记
A short remark on negative energy densities and quantum inequalities
摘要：
在量子场论中，一般都知道时空中某一点的能量密度可能是负的。许多论文已经表明，存在对该能量密度的限制，其被称为量子不等式（QI）。QI是在时间相关采样函数上积分的给定点处的能量密度的“加权平均”的下限。在本文中，我们给出了一个例子的采样函数，没有QI。
英文摘要：
In quantum field theory it is generally known that the energy density may be negative at a given point in spacetime. A number of papers have shown that there is a restriction on this energy density which is called a quantum inequality (QI). A QI is the lower bound to the "weighted average" of the energy density at a given point integrated over a time dependent sampling function. In this paper we give an example of a sampling function for which there is no QI.
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。
