“ergodic hypothesis”的概念、定义、习题解题方法及翻译-物理辞典

单词	ergodic hypothesis
释义	ergodic hypothesis A hypothesis in statistical mechanics concerning phase space. If a system of N atoms or molecules is enclosed in a fixed volume, the state of this system is given by a point in 6N-dimensional phase space with q_i representing coordinates and p_i representing momenta. Taking the energy E to be constant, a representative point in phase space describes an orbit on the surface E(q_i,p_i) = c, where c is a constant. The ergodic hypothesis states that the orbit of the representative point in phase space eventually goes through all points on the surface. The quasi-ergodic hypothesis states that the orbit of the representative point in phase space eventually comes close to all points on the surface. In general, it is very difficult to prove the ergodic or quasi-ergodic hypotheses for a given system. See also ergodicity; KAM theorem
随便看	gyrocompass gyromagnetic ratio gyroscope habit hadron Hahn, Otto half cell half-life half-thickness half-wave plate half-wave rectifier half-width Hall effect Halley's comet Halley, Edmund halo Hamiltonian hard ferromagnetic materials hard radiation hardware harmonic harmonic motion harmonic oscillator harmonic series Harvard classification

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