论文标题
牛顿近似中新兴时空的宇宙常数
The cosmological constant of emergent spacetime in the Newtonian approximation
论文作者
论文摘要
我们提出了牛顿宇宙宇宙常数的简单量子力学估计。我们首先通过固定的（即非动力）欧几里得时段中的宇宙内容物（Baryonic和Dark）中的物质内容来模仿牛顿时空的动力学。然后，我们确定了一个在此问题上扮演的操作员，它类似于宇宙常数发挥的作用。最后，我们证明存在物质字段的量子状态，在该量子字段中，上述操作员的期望值等于给定牛顿宇宙的宇宙常数。
We present a simple quantum-mechanical estimate of the cosmological constant of a Newtonian Universe. We first mimic the dynamics of a Newtonian spacetime by means of a nonrelativistic quantum mechanics for the matter contents of the Universe (baryonic and dark) within a fixed (i.e., nondynamical) Euclidean spacetime. Then we identify an operator that plays, on the matter states, a role analogous to that played by the cosmological constant. Finally we prove that there exists a quantum state for the matter fields, in which the above mentioned operator has an expectation value equal to the cosmological constant of the given Newtonian Universe.
