Justin Long edited introduction.tex  over 8 years ago

Commit id: b9a49cadb14f5f24b9ff0a47088b1c3d80eec888

deletions | additions      

       

\section{Introduction}   Since the 1994 release of the Alcubierre solution to the Einstein Field Equations - the Alcubierre Drive (Alcubierre, 1994) - a handful of proposals and experiments have been published attempting to demonstrate the realizability of faster-than-light travel. Early proposals included a focus on zero-point energy (H.E. Puthoff, 1998). In the late 2000s, organizations such as Icarus Interstellar and the Tau Zero foundation have charted fields of interest for faster-than-light travel. A class of recent experiments, EM warping and measurement using laser interferometry (White, 2015), are of particular interest and examining their feasibility is particularly useful for advancing Alcubierre drive experimentation.  Using several methods of experimentation (including modified Michelson and Fabry-Perot interferometry), White is attempting to measure spacetime warping in a similar geometry to the Alcubierre solution. However, many objections have been raised against the instrumentation and results, including interference from a change in the refractive air index (Lee & Cleaver, 2014). Additionally, the authors of this paper were not able to obtain White's calculations that would indicate the exact allow examination of his predicted  warping - and resulting phase shift using laser interferometry  - that White is attempting to measure. Given the lack of evidence to support positive results from the experiment, a basis is given to attempt replication of White's experiments and methods. Because gravity is a property of spacetime geometry, a foundation for Alcubierre experimentation can be built on existing lines of research in gravitational instrumentation. The COW experiment demonstrated remarkable pioneering in neutron interferometry and gravitational measurement (Colella, Overhauser, and Werner, 1974). Since the 1960s, continued improvements have been made to Weber's original 1966 proposal for a resonant-mass detector to measure gravitational waves (Aguiar, 2014). It's important to make the distinction that White's experiment is attempting to directly measure spacetime distortion, whereas other laser interferometers such as LIGO are designed to detect residual gravitational phenomenon, or waves. However, the method of detection is moot since the positive result requires verification of the Alcubierre geometry - not the method of verification.