light-cone dynamicsWe propose a new Doubly Special Relativity theory based on thegeneralization of the u03ba-deformation of the Poincaru00e9 algebraacting along one of the null directions. We recall the quantum Hopfstructure of such deformed Poincaru00e9 algebra and use it to derive thephase ...
This section provides a quick introduction of light cone, which is a 4-dimensional surface in a spacetime frame where all events on the surface can be connected to a central event by light.
Physics 311 Special Relativity^ Lecture 9: Worldline. Light cone. Spacetime maps We’ve seen them before: space on the horizontal axis, time on thevertical axis. Not a position vs. time graph! Because of what we plot... x t same time^ same place ...
In fact, this bundle of trajectories mimics the “light cone” of relativity, traced out by the paths in space-time of particles travelling up to and including the speed of light. The light cone also divides past from future. In relativity, it is possible to conceive of tachyons, tra...
for light cone we have: ds=0 It means that: dxdt=αx That is a coordinate speed, it tells us how fast coordinate x changes with coordinate t, it depends on x and could be more or less then 1. The physical speed is the rate of change of physical distance, l , in the physical ...
This effect is driven by the Bessel cone angle θ associated with the X-pulses48, 49, 50, 51, whose peak moves (in vacuum) at v=c/cos(θ). In any system, the role of c is played by the group velocity vg as obtained from the specific dispersion slope (illustrated for polariton ...
Fig. 1above shows Minkowski's famous diagram of spacetime. It shows how distance changes depending on your reference frame. Instead of circles, the equidistant lines of distance 1, 2, etc. become hyperbolas. The dotted lines at 45° show the light cone of the event at the center, which ...
Consequently, the null lightcone αT ξ-Smarandache curve β of α is given by (see Figure 3) β(s) = − 1 α(s) + 1 T (s) + ξ(s) = 1 e−s(−1, 1, 0), 82 2 which means that β is a null straight line. References [1] Ahmad T. Ali, Special Smarandache ...
Theoretically, numerical estimates of semileptonic Bc decays involving axial-vectors have been reported based on a variety of models, namely, the CLF QM, relativistic quark model (RQM), nonrelativistic quark model (NRQM), rel- ativistic constituent quark model (RCQM), light cone QCD sum rules ...
In particular, we introduce a scale-dependent (L) lightcone-comparison functional, defined by a harmonic type energy, associated with a natural map between the physical CL−(p,g) and the FLRW reference lightcone CL−(p,g^). This functional has a number of remarkable properties, in ...