Search results
Results From The WOW.Com Content Network
Relativistic rocket means any spacecraft that travels close enough to light speed for relativistic effects to become significant. The meaning of "significant" is a matter of context, but often a threshold velocity of 30% to 50% of the speed of light (0.3 c to 0.5 c ) is used.
Within general relativity (GR), Einstein's relativistic gravity, the gravitational field is described by the 10-component metric tensor. However, in Newtonian gravity, which is a limit of GR, the gravitational field is described by a single component Newtonian gravitational potential. This raises the question to identify the Newtonian potential ...
An antimatter rocket is a proposed class of rockets that use antimatter as their power source. There are several designs that attempt to accomplish this goal. The advantage to this class of rocket is that a large fraction of the rest mass of a matter/antimatter mixture may be converted to energy, allowing antimatter rockets to have a far higher energy density and specific impulse than any ...
A free particle with mass in non-relativistic quantum mechanics is described by the free Schrödinger equation: (,) = (,) where ψ is the wavefunction of the particle at position r and time t . The solution for a particle with momentum p or wave vector k , at angular frequency ω or energy E , is given by a complex plane wave :
It is not gauge covariant in a non-abelian theory, though, so Pauli–Villars regularization is more difficult to use in QCD calculations. P–V serves as a helpful alternative to the more commonly used dimensional regularization in specific circumstances, such as in chiral phenomena, where a change of dimension alters the properties of the ...
Step 5: Solve for to (). Assuming this tends to zero far from the system, one obtains the form h 00 = 2 α U {\displaystyle h_{00}=2\alpha U} where U {\displaystyle U} is the Newtonian gravitational potential and α {\displaystyle \alpha } may be a complicated function including the gravitational "constant" G {\displaystyle G} .
Philip Pearle's 1976 paper pioneered the quantum nonlinear stochastic equations to model the collapse of the wave function in a dynamical way; [4]: 477 [5] [6] [7] this formalism was later used for the CSL model. However, these models lacked the character of “universality” of the dynamics, i.e. its applicability to an arbitrary physical ...
New York: Academic Press Inc. ISBN 978-0-12-654670-5. OCLC 803152309. Whittaker, E. T. (1999). A treatise on the analytical dynamics of particles and rigid bodies : with an introduction to the problem of three bodies (4th ed.). Cambridge University Press. ISBN 0-521-35883-3.