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[求助]
分子動(dòng)力學(xué)溫度與動(dòng)能的關(guān)系
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請(qǐng)教各位大神,在用VASP弄分子動(dòng)力學(xué)計(jì)算時(shí),總是提示 VASP found 648 degrees of freedom | | the temperature will equal 2*E(kin)/ (degrees of freedom) | | this differs from previous releases, where T was 2*E(kin)/(3 NIONS). | | The new definition is more consistent 而計(jì)算中間結(jié)果是 ENERGY OF THE ELECTRON-ION-THERMOSTAT SYSTEM (eV) --------------------------------------------------- % ion-electron TOTEN = -879.024310 see above kinetic energy EKIN = 10.203468 kin. lattice EKIN_LAT= 0.000000 (temperature 365.45 K) nose potential ES = 0.000000 nose kinetic EPS = 0.000000 --------------------------------------------------- total energy ETOTAL = -868.820842 eV 這里溫度是多少?365.45K還是2*kinetic energy EKIN/648?單位是什么? |
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