| 单词 | momentum space |
| 释义 | > as lemmasmomentum space momentum space n. Physics a three-dimensional Cartesian space in which each particle of a physical system is represented by a point whose three coordinates are numerically equal to the components of its momentum in the directions of the three coordinate axes. ΘΚΠ the world > matter > physics > atomic physics > [noun] > atomic mass > space containing momentum space1928 1928 Proc. National Acad. Sci. U.S.A. 14 577 Concentrating our attention..upon the momentum space, we may number the regions, and the momentum and the energy of a particle in region r may be called pr. 1948 W. Hume-Rothery Electrons, Atoms, Metals & Alloys xx. 143 The momentum space is divided into little cells of side h/L, and volume h3/L3. 1970 G. K. Woodgate Elem. Atomic Struct. vi. 98 Under this assumption the electrons are moving freely, with no forces acting on them, and their translational momenta can be taken to be directed isotropically in momentum space. 1997 R. W. Robinett Quantum Mech. v. 98 It is possible..to transform the Schrödinger equation itself into momentum space and solve for ϕ(p, t) directly. < as lemmas |
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