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aaq2800鐵桿木蟲 (知名作家)
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[求助]
請教;這怎么理解?平衡溫度是初始溫度的二分子一
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We started our microcanonical MD simulations with optimized coordinates and with the initial temperature of T0. Since the total energy is constant during the simulation, the average temperature after the system reaches equilibrium should be T0 /2 if the system stays in the harmonic limit. In the case of exploring the unharmonic regime, the average equilibrium temperature would stay below T0 /2. Such a deviation from the value that was based on the equipartition theorem indicates an onset of a phase transition or a so-called melting although the transitions are not sharp in small systems. 本人當初熱力學和統(tǒng)計物理學的就不好,這么多年基本不用這些知識,這個結果不知道怎么得來的?模擬的對象是團簇,孤立體系 [ Last edited by aaq2800 on 2012-10-31 at 16:26 ] |
金蟲 (著名寫手)
劉蘇州
鐵桿木蟲 (知名作家)
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