Introducing physical warp drives

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