RT Journal Article
T1 Virial coefficients and demixing in the Asakura-Oosawa model
A1 López de Haro, Mariano
A1 Fernández Tejero, Carlos
A1 Santos, Andrés
A1 Yuste, Santos B.
A1 Fiumara, Giacomo
A1 Saija, Franz
AB The problem of demixing in the Asakura-Oosawa colloid-polymer model is considered. The critical constants are computed using truncated virial expansions up to fifth order. While the exact analytical results for the second and third virial coefficients are known for any size ratio, analytical results for the fourth virial coefficient are provided here, and fifth virial coefficients are obtained numerically for particular size ratios using standard Monte Carlo techniques. We have computed the critical constants by successively considering the truncated virial series up to the second, third, fourth, and fifth virial coefficients. The results for the critical colloid and (reservoir) polymer packing fractions are compared with those that follow from available Monte Carlo simulations in the grand canonical ensemble. Limitations and perspectives of this approach are pointed out.
PB American  Institute of Physics
SN 0021-9606
YR 2015
FD 2015-01-07
LK https://hdl.handle.net/20.500.14352/34844
UL https://hdl.handle.net/20.500.14352/34844
LA eng
NO © 2015 AIP Publishing LLC. M.L.H., A.S., and S.B.Y. acknowledge the financial support of the Spanish Government through Grant No. FIS2013-42840-P and the Junta de Extremadura (Spain) through Grant No. GR10158 (partially financed by FEDER funds). Thanks are also due to Professor Bob Evans for suggesting this problem to us and for rich and interesting discussions and a very fruitful exchange of correspondence.
NO Ministerio de Economía y Competitividad (MINECO)/FEDER
NO Junta de Extremadura
DS Docta Complutense
RD 18 abr 2025