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arXiv 2006.06291gr-qcmath-phmath.MP
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牛顿近似下突现时空的宇宙学常数

The cosmological constant of emergent spacetime in the Newtonian approximation

J. C. Castro-Palacio, P. Fernandez de Cordoba, J. M. Isidro

摘要:

我们提出了一个简单的量子力学估计的宇宙学常数的牛顿宇宙。我们首先用非相对论性的量子力学模拟牛顿时空的动力学,在一个固定的(即,非动力学)欧几里得时空。然后,我们确定了一个运营商,发挥作用,对物质的状态,类似的宇宙学常数所发挥的作用。最后证明了存在一个物质场的量子态,在该量子态中,上述算符的期望值等于给定牛顿宇宙的宇宙学常数.

英文摘要:

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.

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