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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 ...
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.
Given that in general for a closed system with generalized coordinates q i and canonical momenta p i, [3] = =, = =, it is immediate (recalling x 0 = ct, x 1 = x, x 2 = y, x 3 = z and x 0 = −x 0, x 1 = x 1, x 2 = x 2, x 3 = x 3 in the present metric convention) that = = (,) is a covariant four-vector with the three-vector part being the ...
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 :
Evgeny Mikhailovich Lifshitz [1] ForMemRS [2] (Ukrainian: Євге́н Миха́йлович Лі́фшиць, Russian: Евге́ний Миха́йлович Ли́фшиц; 21 February 1915, Kharkiv – 29 October 1985, Moscow) was a leading Soviet physicist and brother of the physicist Ilya Lifshitz.
The non-relativistic version was found by Hans Bethe in 1930; the relativistic version (shown below) was found by him in 1932. [2] The most probable energy loss differs from the mean energy loss and is described by the Landau-Vavilov distribution. [3]
This means, by definition, that with respect to S the distance between the two rockets does not change even when they speed up to relativistic velocities." [ 1 ] Then this setup is repeated again, but this time the back of the first rocket is connected with the front of the second rocket by a silk thread.
Zero-length launchers quickly became standard on most fighters and many light bombers for firing a variety of rockets with 3.25" or 5" diameter rocket motors. Although the rocket's accuracy was more than sufficient to allow usage against surface targets, the narrow body diameter restricted the size of any explosive warhead that could be fitted. [1]