ключевые слова - Alcubierre warp drive spacetime
arXiv:gr-qc/0107097 v2 3 Nov 2001
Reduced total energy requirements for a modified
Alcubierre warp drive spacetime
F. Loup
Royal Sun Alliance
Avenida Duque De Avila 141 2 Andar 1050 Lisbon Portugal
D. Waite
Modern RelativityЉ
E. Halerewicz, Jr.
Lincoln Land Community College
5250 Shepherd Road, Springfield, IL 62794 USAј
July 29, 2001
In recent years the possibility of interstellar travel within a human lifetime has become a hurtle for theoretical physics to over come. The discussion involves the use of radically transforming the geometry of spacetime to act as a global means of providing apparent Faster Than Light (FTL) travel. In 1994 Miguel Alcubierre then of Wales University introduced an arbitrary spacetime function which provided an apparent means of FTL travel within the frame work of
General Relativity (GR) . The drawbacks of this revolutionary new form of propulsion results from the production of causally disconnected spacetime regions and major violations of the standard energy conditions within GR. Further investigations into the warp drive spacetime have suggested that any manipulation of the spacetime coordinates in regards to FTL travel requires negative energy densities . Alcubierre's generic model coupled with causally disconnected spacetime regions and large negative energy densities make it hard to build a justifiable model of a working warp drive spacetime. However recently it has been shown that quantum inequalities can allow for the existence of negative energy densities , and it has also been found that classical scalar fields can generate large fluxes of negative energy in comparison to Quantum Inequality (QI) restrictions . Coupled with recent astrophysical and cosmological observations in support of negative energy in the form of Quintessence we feel that there is still new life to be brought into the warp drive spacetime. The once distant dream of reaching the stars may become a reality with the aid of the warp drive spacetime using latin we can express our motto as Ex Somnium Ad Astra (ESAA) which translates; from a dream to the stars. The following work was made possible as a collaboration of the ESAA motto in order to produce a physically justifiable model of the warp drive spacetime. The inspiration behind this work was to choose a somewhat less arbitrary means of defining the Alcubierre Warp Drive spacetime. Specifically we have set out the task of redefining the functions of the warp drive spacetime in order to reduce the overall energy requirements as seen in respect to the Einstein tensor. |
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