Secondly, we investigate the energy density produced by a state vector which is the superposition of three single electron states in the Dirac field in the four-dimensional Minkowski spacetime.
然后,研究了在四维平直时空下三个单粒子态构成的量子态的负能密度。
2
By defining fourdimensional 'deformation event', the spring's equation about deformation and elasticity becomes perfect covariant 4-vector one.