|
所在平台: Udemy |
课程主页: https://www.udemy.com/course/wormholes/
课程评论：没有评论
**课程名称：** 可穿越虫洞：进入虫洞 **课程概述：** 本课程将深入探讨可穿越虫洞的最新研究进展。实现超光速（FTL）的星际旅行，通常需要借助可穿越虫洞，并对时空进行高度局部化的特殊几何构造。根据爱因斯坦的广义相对论及其推导出的状态方程，此类几何结构需要使用“奇异物质”。 尽管有人认为，由于奇异物质违反了能量条件，因此超光速时空结构并非可行，但研究表明这其实是一个不成立的说法。奇异物质的识别和生产被视为关键的技术挑战。本课程将回顾和总结这些问题，并评估当前解决这些问题的进展。 **虫洞与广义相对论：** 虫洞与广义相对论是相符的，但其真实存在性仍有待证实。许多科学家推测，虫洞可能只是更高维度（例如第四个空间维度）的投影，就像一个二维生物只能感知三维物体的一部分一样。 **虫洞的可能性：** 理论上，虫洞可以连接极其遥远的距离（如十亿光年）、极短的距离（如几米）、不同的时间点，甚至不同的宇宙。
In this course we will explore the state of the art of Traversable Wormholes. The implementation of faster-than-light (FTL) interstellar travel via traversable wormholes generally requires the engineering of spacetime into very specialized local geometries. The analysis of these via Einstein's General Theory of Relativity, plus the resultant equations of state, demonstrates that such geometries require the use of "exotic" matter. It has been claimed that since such matter violates the energy conditions, FTL spacetimes are not plausible. However, it has been shown that this is a spurious issue. The identification and production of exotic matter are seen to be a key technical challenge. These issues are reviewed and summarized here, and an assessment on the present state of their resolution is provided.Wormholes are consistent with the general theory of relativity, but whether wormholes actually exist remains to be seen. Many scientists postulate that wormholes are merely projections of a fourth spatial dimension, analogous to how a two-dimensional (2D) being could experience only part of a three-dimensional (3D) object.Theoretically, a wormhole might connect extremely long distances such as a billion light years, or short distances such as a few meters, or different points in time, or even different universes.
