Scalar curvature in discrete gravity

Scalar curvature in discrete gravity
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离散重力中的标量曲率

DOI:
10.1140/epjc/s10052-022-10605-5
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发表时间:
2022
期刊:
The European Physical Journal C
影响因子:
--
通讯作者:
Najem, Sara
Najem, Sara
中科院分区:
--
文献类型:
--
作者:
Chamseddine, Ali H.;Malaeb, Ola;Najem, Sara

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我们专注于研究,数值上,在二维离散空间的标量曲率张量。利用两种可能的切片将双球面的连续度量变换为格的连续度量。在第一种情况下,我们使用两个整数,而在第二种情况下,我们考虑的情况下,其中一个坐标是可缩放的。这两种情况下的数值结果,然后与预期的值在连续的限制作为网格的细胞的数量变得非常大。
We focus on studying, numerically, the scalar curvature tensor in a two-dimensional discrete space. The continuous metric of a two-sphere is transformed into that of a lattice using two possible slicings. In the first, we use two integers, while in the second we consider the case where one of the coordinates is ignorable. The numerical results of both cases are then compared with the expected values in the continuous limit as the number of cells of the lattice becomes very large.
DOI: 10.1016/0370-2693(94)91480-x
发表时间: 1994-06-02
期刊: PHYSICS LETTERS B
影响因子: 4.4
作者:
CATTERALL, S;KOGUT, J;RENKEN, R
通讯作者: RENKEN, R