Relativistic orbits with computer algebra
We use computer algebra to derive the equations of motion from the Lagrangian, solve the equations of motion numerically, and plot the numerical solutions, to discover the difference between trajector...
We use computer algebra to derive the equations of motion from the Lagrangian, solve the equations of motion numerically, and plot the numerical solutions, to discover the difference between trajector...
Analytical solution for photonic band-gap crystals using Drude conductivity
An analytical solution for the photonic band-gap of semiconductor structures in the terahertz (THz) frequency range is discussed. In analogy with the Kronig–Penney model for electronic band-gaps ...
An analytical solution for the photonic band-gap of semiconductor structures in the terahertz (THz) frequency range is discussed. In analogy with the Kronig–Penney model for electronic band-gaps ...
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Visual appearance of a Morris–Thorne-wormhole
American Journal of Physics -- August 2004 -- Volume 72, Issue 8, pp. 1045-1050
Issue Date: August 2004
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Following the paper of Morris and Thorne on wormholes as a tool for teaching general relativity, we present the visual appearance of this simple spacetime using an embedding diagram and a raytracing program. Even if such a wormhole is not physically reasonable, we take the risk and take a short trip to an unreasonable parallel universe. ©2004 American Association of Physics Teachers.
| History: | Received 6 November 2003; accepted 2 April 2004 |
| Permalink: | http://dx.doi.org/10.1119/1.1758220 |