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Ab initio Calculation of the Effective Inter-Atomic Pair Potential in Liquid Helium
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Chun-Ling TIAN1, 2, Fu-Sheng LIU3, Ling-Cang CAI2, Fu-Qian JING2, 3
Chinese Journal of High Pressure Physics | 2006, 20(1) : 15 - 19
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Chinese Journal of High Pressure Physics | 2006, 20(1): 15-19
Ab initio Calculation of the Effective Inter-Atomic Pair Potential in Liquid Helium
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Chun-Ling TIAN1, 2, Fu-Sheng LIU3, Ling-Cang CAI2, Fu-Qian JING2, 3
Affiliations
  • 1.Department of Physics, Southwest Normal University, Chongqing 400715, China
  • 2.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China
  • 3.Laboratory of High Pressure Physics, Southwest Jiaotong University, Sichuan 610031, China
Published: 2006-03-05
Outline
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Ab initio Hartree-Fock self-consistent-field (SCF) technique and the atomic cluster method have been applied to study the effective inter-atomic pair potential in liquid helium. The atomic cluster (He)9 with BCC geometry (only taking the first neighbors into account) is used to stimulate the average atomic configuration in liquid states. A theoretical effective potential is derived based on the new average coordination model and many-body series expansion approach. The obtained pair potential is very close to the experimental calibrated Exp-6 potential, by which both the isotherm and Hugoniot of liquid helium are well described.

pair potential  /  fluid helium  /  ab initio calculation  /  atom cluster
田春玲, 刘福生, 蔡灵仓, 经福谦. 采用从头计算方法研究液态氦原子间等效对势. 高压物理学报, 2006 , 20 (1) : 15 -19 .
Chun-Ling TIAN, Fu-Sheng LIU, Ling-Cang CAI, Fu-Qian JING. Ab initio Calculation of the Effective Inter-Atomic Pair Potential in Liquid Helium[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (1) : 15 -19 .
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Year 2006 volume 20 Issue 1
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Article Info
  • Receive Date：2004-10-21
  • Online Date：2026-11-01
  • Published：2006-03-05
Article Data
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History
  • Received：2004-10-21
  • Revised：2005-01-10
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Affiliations
    1.Department of Physics, Southwest Normal University, Chongqing 400715, China
    2.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China
    3.Laboratory of High Pressure Physics, Southwest Jiaotong University, Sichuan 610031, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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