| 单词 | phase space |
| 释义 | > as lemmasphase space phase space n. Science a multidimensional space in which each axis corresponds to one of the coordinates (spatial or otherwise) required to specify the state of a system, all the coordinates being thus represented so that a point in the space corresponds to a state of the system. ΘΚΠ the world > matter > physics > quantum theory > quantum mechanics > [noun] > statistics of energy distribution > state of system phase space1923 1923 H. L. Brose tr. A. Sommerfeld Atomic Struct. & Spectral Lines iv. 195 In a system having f degrees of freedom this phase space is of 2f dimensions. 1970 G. K. Woodgate Elem. Atomic Struct. vi. 98 The exclusion principle states, in this context, that not more than two electrons are allowed in each volume of size h3 in phase space. 1991 Sci. Amer. Mar. 54/2 Instead of traversing space in the usual sense, the rays traverse an abstract region called phase space: the space of ray positions and ray directions. < as lemmas |
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