![The Time Machine Factory [unspeakable, speakable] on Time Travel - TMF2024](/event/751/logo-2372865151.png){kind=logo}
Conveners
Session IV. Faster than light, warp drive
- Mariateresa Crosta (Istituto Nazionale di Astrofisica (INAF))
As was shown by Ellis in gr-qc/0411096, one can establish a
correspondence between the Schwarzschild metric and a warp drive-type
metric, making it possible to consider a warp drive in a black hole
background. We elaborate upon this result and demonstrate that the
black hole's gravitational field can alleviate the violations of
energy conditions, reducing the amount of negative energy...
Thirty years after Alcubierre introduced the concept of the warp drive spacetime in General Relativity (GR), extensive literature has emerged on his model and its generalizations. However, these models, which we refer to as "restricted warp drive" models, are limited within the context of GR. In contrast, we propose a new approach called the "tilted warp drive," which incorporates essential...
Warp drives offer intriguing possibilities for novel transportation methods. This study presents a groundbreaking solution for a constant velocity subluminal warp drive that satisfies all energy conditions. Our approach combines a stable matter shell with a shift vector distribution resembling established warp drive solutions, such as the Alcubierre metric. We numerically generate the...
Warp drives are exotic solutions in general relativity that allow inertial observers to accelerate and reach subluminal or superluminal speeds relative to other inertial observers. The field of warp drives was defined three decades ago with the famous Alcubierre metric and its generalization, the Natário metric. Both classes of warp drives feature propulsion-less acceleration, zero ADM mass,...
