论文标题
设立空间的隔热罩
A Heat Shield for de Sitter space
论文作者
论文摘要
我们研究了$ 1 + 1 $ dimention de Sitter空间的量子真空状态，对应于一个完美反映固定物理尺寸的对称盒中的区域。我们发现，盒子内的粒子探测器会记录零响应，这表明盒子屏幕的墙壁消除了de Sitter Horizon的热效应。因此，该盒子创建了一个“静态绿洲”，温度低于Sitter Horizon温度，这是一种意外的特征，在热力学的广义第二定律的背景下，为盒子和地平线之间的热量和熵交换开辟了道路。我们还计算了盒子内该区域的应力 - 能量量张量，这表明盒子中的总能量在存在热波动的情况下小于Sitter空间的相同体积。
We investigate a quantum vacuum state for $1 + 1$ dimensional de Sitter space, corresponding to a region within a perfectly reflecting symmetric box of fixed physical size. We find that a particle detector inside the box registers zero response, implying that the walls of the box screen out the thermal effects of the de Sitter horizon. The box thus creates a `quiescent oasis' with a temperature below the de Sitter horizon temperature, an unexpected feature that opens the way to an analysis of heat and entropy exchange between the box and the horizon in the context of the generalized second law of thermodynamics. We also calculate the stress-energy-momentum tensor of the region within the box, showing that the total energy in the box is less than the same volume of de Sitter space in the presence of thermal fluctuations.
