标题： 关于引力粒子产生新方法中与de Sitter时空的不一致性 显示英文标题

标题： Inconsistency with De Sitter Spacetime in a New Approach to Gravitational Particle Production

摘要： 我们研究了最近发表在《物理评论快报》[1]上的一篇文章，该文章提出了一种新的机制，通过空间相关的温度来描述粒子产生和黑洞蒸发。 这种新温度在黑洞附近与霍金的结果相当，但在远处却非常小，因此可以被视为一种小修正。 在这里，我们将所提出的推理应用到de Sitter空间的情况中，发现它过高估计了最小耦合标量的de Sitter温度，高估了$\approx 4.3$倍，并且过高估计了粒子产生率，高估了$\approx 52$倍。 对于非最小耦合标量，它还存在其他各种问题；它预测共形或接近共形耦合标量的粒子产生为负值；它预测重标量的未抑制产生。 这一切都表明所提出的表述存在不一致性。 显示英文摘要

摘要： We study the recent Physical Review Letter [1] which presents a new mechanism for particle production and black hole evaporation through a spatially dependent temperature. This new temperature is comparable to the Hawking result near the black hole, but is very small far away, and therefore could be a small correction. Here we apply the proposed reasoning to the case of de Sitter space, finding that it over predicts the de Sitter temperature of a minimally coupled scalar by factor of $\approx 4.3$ and over predicts the particle production rate by a factor of $\approx 52$. For non-minimally coupled scalars, it has other various problems; it predicts a negative particle production for conformal, or nearly conformal, coupled scalars; it predicts unsuppressed productions of heavy scalars. This all demonstrates an inconsistency in the proposed formalism.