On the relation between the compressibility and the static structure factor of a fluid with a state-dependent pair-potential

被引：13

作者：

Tejero, CF ^{[1
]}

Baus, M

机构：

[1] Univ Complutense Madrid, Fac CC Fis, E-28040 Madrid, Spain

[2] Free Univ Brussels, Fac Sci, B-1050 Brussels, Belgium

来源：

JOURNAL OF CHEMICAL PHYSICS | 2003年 / 118卷 / 02期

关键词：

D O I：

10.1063/1.1526837

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The compressibility equation of a fluid with an effective, state-dependent, pair-potential is derived. It is shown that the thermodynamic states for which the infinite wavelength limit of the static structure factor diverges are not consistent with the thermodynamic states for which the compressibility diverges whenever the effective potential is density-dependent. This result is in agreement with some recent numerical simulations. (C) 2003 American Institute of Physics.

引用

页码：892 / 896

页数：5

共 11 条

[1] Evidence of double criticality in a fluid model with density-dependent interactions [J].

Almarza, NG ;

Lomba, E ;

Ruiz, G ;

Tejero, CF .

PHYSICAL REVIEW LETTERS, 2001, 86 (10) :2038-2041

[2] Vapour-liquid coexistence for purely repulsive point-Yukawa fluids [J].

Dijkstra, M ;

van Roij, R .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (06) :1219-1228

[3] Phase diagram of highly asymmetric binary hard-sphere mixtures [J].

Dijkstra, M ;

van Roij, R ;

Evans, R .

PHYSICAL REVIEW E, 1999, 59 (05) :5744-5771

[4] NATURE OF THE LIQUID-VAPOR INTERFACE AND OTHER TOPICS IN THE STATISTICAL-MECHANICS OF NONUNIFORM, CLASSICAL FLUIDS [J].

EVANS, R .

ADVANCES IN PHYSICS, 1979, 28 (02) :143-200

[5]

HANSEN JP, 1986, THEORY SIMPLIE LIQUI

[6] Structure and effective interactions in three-component hard sphere liquids -: art. no. 041203 [J].

König, A ;

Ashcroft, NW .

PHYSICAL REVIEW E, 2001, 63 (04) :412031-412039

[7] Effective interactions in soft condensed matter physics [J].

Likos, CN .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 348 (4-5) :267-439

[8] Beware of density dependent pair potentials [J].

Louis, AA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (40) :9187-9206

[9]

McQuarrie D. A., 2000, STAT MECH

[10] Statistical mechanical models with effective potentials: Definitions, applications, and thermodynamic consequences [J].

Stillinger, FH ;

Sakai, H ;

Torquato, S .

JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (01) :288-296

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