论文标题
考虑莫里斯 - thorne虫洞中的大径向张力
Accounting for the large radial tension in Morris-Thorne wormholes
论文作者
论文摘要
众所周知，莫里斯·托恩（Morris-Thorne）虫洞只能通过违反无效的能量状况来保持开放，这可以通过使用“异国物质”在物理上实现。不幸的是，即使是小型或中等大小的虫洞也会具有等于巨大中子恒星内部的径向张力。因此，在中子明星的环境之外，这样的结果充其量是有问题的，呼吁对异国情调的诉讼具有完全不同的目标且可能不同的结果。本文的目的是通过三种方式说明巨大的径向张力：（1）直接调用非交通性几何形状，弦理论的分支，（2）与$ f（r）$修改的重力一起吸引非交通性几何形状，以及（3）确定小小的额外压力的可能影响。
It is well known that a Morris-Thorne wormhole can only be held open by violating the null energy condition, physically realizable by the use of "exotic matter." Unfortunately, even a small or moderately-sized wormhole would have a radial tension equal to that of the interior of a massive neutron star. So outside a neutron-star setting, such an outcome is problematical at best, calling for more than an appeal to exotic matter whose introduction had a completely different objective and with possibly different outcomes. The purpose of this paper is to account for the enormous radial tension in three ways: (1) directly invoking noncommutative geometry, an offshoot of string theory, (2) appealing to noncommutative geometry in conjunction with $f(R)$ modified gravity, and (3) determining the possible effect of a small extra dimension.
