Cross-over between central and non-central conservative effective forces in a modulated colloidal fluid

We study by Monte Carlo simulations the effective forces between two particles dispersed in a two-dimensional colloidal fluid, modulated in one direction by a spatially periodic external potential. When the modulation strength exceeds the strength of interaction between the dispersed and dispersing...

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Bibliographic Details
Published in:The Journal of chemical physics 2013-11, Vol.139 (20), p.204903-204903
Main Authors: Chaudhuri, Chhanda Basu, Chakrabarty, Srabani, Chakrabarti, J
Format: Article
Language:English
Subjects:
Computer simulation
Crossovers
Modulation
Monte Carlo simulation
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Summary:We study by Monte Carlo simulations the effective forces between two particles dispersed in a two-dimensional colloidal fluid, modulated in one direction by a spatially periodic external potential. When the modulation strength exceeds the strength of interaction between the dispersed and dispersing particles, the anisotropic effective forces, show cross-over between central and non-central nature, although the effective forces remain conservative. The non-central nature of the effective forces depends on the orientation of the separation vector between the dispersed particles with respect to the modulation direction.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4832735