论文标题
关于薄壳虫洞的遍历的进一步考虑
Further considerations about the traversability of thin-shell wormholes
论文作者
论文摘要
与薄壳虫洞中的潮汐相关的遍历性可重新研究，以调查改善最近注意到的限制性条件的可能性。我们认为虫洞是从背景几何形状开始的数学构造的，这些几何形状是标量调整理论的解决方案，是Dilaton Gravity和Brans-Dicke Gravity。通过检查外在曲率和潮汐在喉咙上的依赖性，通过确定纯粹相对性的偏离来研究此类框架中工作的优势；还分析了几何形状平滑区域中潮汐的相关行为。附录中简要讨论了其他相关但不同的方法。
Traversability in relation with tides in thin-shell wormholes is revisited to investigate the possibility of improving recently noted restrictive conditions for a safe travel across a wormhole throat. We consider wormholes mathematically constructed starting from background geometries which are solutions of scalar-tensor theories as dilaton gravity and Brans--Dicke gravity. The advantages of working within such frameworks are studied by examining the dependence of the extrinsic curvature and tides at the throat with the parameters determining the departure from pure relativity; the associated behaviour of tides in the smooth regions of the geometries is also analyzed. Other related but different approaches are briefly discussed in the appendices.
