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2Â¥2016-05-27 08:38:48
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3Â¥2016-05-27 14:18:20
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4Â¥2016-05-27 15:35:44
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abinitio: ½ð±Ò+5, ¸ÐлӦÖú 2016-05-30 10:21:38
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ÕâÊÇÎÒ×Ô¼ºÐ´·Ö×Ó¶¯Á¦Ñ§Ä£Äâ³ÌÐòʱÓõĵ¥Î»ÖÆ£¬¹©²Î¿¼£º /*----------------------------------------------------------------------------80 The units used in this program are as follows: (1) The basic units are chosen to be (A) Mechanics -- energy: eV (electron volt) -- length: A (Angstrom) -- mass: amu (atomic mass unit) (B) Thermodynamics -- temperature: K (Kelvin) (C) Electricity -- charge: e (elementary charge) (2) Some derived units are (A) Mechanics -- time: A amu^(1/2) eV^(-1/2) ~ 10 fs -- velocity: eV^(1/2) amu^(-1/2) ~ 0.1 A fs^(-1) -- acceleration: eV A^(-1) amu^(-1) ~ 0.01 A fs^(-2) -- force: eV A^(-1) (B) Thermodynamics Boltzmann constant: K_B ~ 0.8625 * 10^(-4) eV K^(-1) (C) Electricity --electrostatic constant: K_C = 1 / (4 * PI * epsilon_0) ~ 14.4 eV A e^(-2) ------------------------------------------------------------------------------*/ ÁíÍ⣬ (1) ¹ØÓÚtersoffÊÆµÄ²ÎÊý£¬ÔÚTersoffµÄ1989ÄêµÄÎÄÕÂÖоÍÓС£ ²»ÖªÄãÊÇ·ñ¾õµÃTersoffÔÀ´µÄ²ÎÊý²»ºÃ£¿ (2)°ëÄêʱ¼äÏÔÈ»²»ÄÜÕÆÎÕµÚÒ»ÐÔÔÀí¼ÆË㣬ÈëÃŶ¼ÄÑ¡£ |
6Â¥2016-05-28 15:14:20
abinitio
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7Â¥2016-05-30 10:42:38














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