The Rindler spacetime describing a series of accelerating observers is Ricci flat, but it still has novel optical effects. In the case WKB approximation, we derive light geodesics in frame based on covariant wave equation and geodesic equations. Then, use ABCD matrix optics method to explore propagation characteristics frame, thus link three different transformation scenes (geometry, gravity va...

studying gaussian beam is a method to investigate laser beam propagation and abcd matrix is a fast and simple method to simulate gaussian beam propagation in different mediums. of the abcd matrices studied so far, reflection and refraction matrices at various surfaces have attracted a lot of researches. however in previous work the incident beam and the principle axis of surface are in parallel...

Active Peer-to-Peer worms are great threat to the network security since they can propagate in automated ways and flood the Internet within a very short duration. Modeling a propagation process can help us to devise effective strategies against a worm’s spread. This paper presents a study on modeling a worm’s propagation probability in a P2P overlay network and proposes an optimized patch strat...