The Alcubierre warp drive is an exotic solution in general relativity. It allows for superluminal travel at the cost of enormous amounts of matter with negative mass density. For this reason, the Alcubierre warp drive has been widely considered unphysical. In this study, we develop a model of a general warp drive spacetime in classical relativity that encloses all existing warp drive definitions and allows for new metrics without the most serious issues present in the Alcubierre solution. We present the first general model for subliminal positive-energy, spherically symmetric warp drives; construct superluminal warp-drive solutions which satisfy quantum inequalities; provide optimizations for the Alcubierre metric that decrease the negative energy requirements by two orders of magnitude; and introduce a warp drive spacetime in which space capacity and the rate of time can be chosen in a controlled manner. Conceptually, we demonstrate that any warp drive, including the Alcubierre drive, is a shell of regular or exotic material moving inertially with a certain velocity. Therefore, any warp drive requires propulsion. We show that a class of subluminal, spherically symmetric warp drive spacetimes, at least in principle, can be constructed based on the physical principles known to humanity today

Alcubierre 曲速引擎是广义相对论中的奇特解决方案。它允许以大量具有负质量密度的物质为代价进行超光速旅行。出于这个原因，Alcubierre 曲速引擎被广泛认为是非物理的。在这项研究中，我们开发了经典相对论中的一般曲速驱动时空模型，该模型包含所有现有的曲速驱动定义，并允许使用新的度量标准，而不会出现 Alcubierre 解决方案中存在的最严重问题。我们提出了第一个潜意识正能量、球对称经线驱动的通用模型；构建满足量子不等式的超光速曲速驱动解决方案；为 Alcubierre 指标提供优化，将负能量需求降低两个数量级；并引入曲速驱动时空，其中可以以受控方式选择空间容量和时间速率。从概念上讲，我们证明了任何曲速驱动器，包括 Alcubierre 驱动器，都是一个以一定速度惯性运动的规则或奇异材料的外壳。因此，任何曲速驱动都需要推进。我们证明了一类亚光速、球对称的曲速驱动时空，至少在原则上，可以基于当今人类已知的物理原理构建