A Discussion of Space-Time Metric Engineering

The Alcubierre Warp Drive in Higher Dimensional Spacetime

“…This idea is intended as an applied extension of the hypothesis that the early universe underwent a rapid inflationary expansion phase immediately after the onset of the Big Bang, and the notion that the York extrinsic time is the driving mechanism behind the metric is a reasonable assumption. However, as proven in White (2003) …”

“…The advantage of the canonical form is that one can extract the potential, . Using the potential one can then extract the field equation for the spacetime expansion boost, (White, 2003): Figure 2 shows a cross-section of the boost topology throughout the sphere. There is a strong boost gradient across the horizon of the sphere settling to a flat region representing the inside of the sphere.…”

“…The expansion and contraction of space are a secondary effect and might be considered an analog of pressure gradients around a moving sphere in a fluid. This aspect of the metric is more fully explored in White (2003). The scalar characteristic of the boost can be demonstrated by considering the null geodesics for, say v s = 10c, within the region of the warp field.…”

“…The principal author has done some follow-on work with the original metric to put it into canonical form (White 2003). In this form, it is easier to see what may really be responsible for the space expansion/contraction.…”

Prospects for breakthrough propulsion from physics

“…Recently, the term "metric engineering" [65] has emerged at aerospace conferences to represent such space-warping propulsion concepts. The origin of this term is unknown.…”