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E-International Scientific Research JournalISSN: 2094-1749 Volume: 2 Issue: 4, 2010radius R. When(very small-distances), however, <strong>the</strong> colloids can be viewed as twoparallel plates. For this case, <strong>the</strong> induced force decays ra<strong>the</strong>r as [25, 26].Finally, <strong>the</strong> main conclusion is that, in any case, <strong>the</strong> temperature has tendency to reduce<strong>the</strong> value of <strong>the</strong> expected force (at fixed inter p<strong>article</strong>-distance) as one moves outside <strong>the</strong>critical region.Fur<strong>the</strong>r works in relation with <strong>the</strong> subject are in progress.AcknowledgmentsWe are much indebted to Professors M. Daoud for fruitful discussions and to S. Dietrich,E.Eisenriegler and M. Krech for useful correspondences.ReferencesH.B.G.Casimir, Proc.Kon.Ned.Akad.Wetenschap B51, 793 (1948).S.K.Lamoreaux, Phys.Rev.Lett.78, 5 (1997).U.Mohideen and A. Roy, Phys.Rev.Lett.81, 4549 (1998).T.Ederth, Phys.Rev. A 62, 62104 (2000).G.Bressi et al., Phys.Rev.Lett.88, 41804 (2002).M.E.Fisher and P.-G.deGennes,C.R.Acad.Sci. (Paris) SérieB 287, 207 (1978);also, P.-G.deGennes, C.R.Acad.Sci. (Paris) II292, 701 (1981).M.Krech, TheCasimir Effect in Critical Systems, World Scientific, Singapore, (1994).M.Krech and S. Dietrich, Phys.Rev. A 46, 1886 (1992).M.Krech, Phys.Rev.E56, 1642 (1997).H.W.J.Blöte, J.L.Cardy, and M.P. Nightingale, Phys.Rev.Lett.56, 742 (1986).I. Affleck,Phys.Rev.Lett. 56, 746 (1986).J.L.Cardy,Nucl.Phys. B275, 200 (1986).T.W.Burkhardt and T.Xue, Phys.Rev.Lett. 66, 895 (1991); Nucl.Phys. B 345, 653(1991).T.W.Burkhardt and E.Eisenriegler,Nucl.Phys. B424, 487 (1994).K.Symanzik,Nucl.Phys. B190, 1 (1981).M.Krech and S. Dietrich, Phys.Rev.Lett. 66, 345 (1991); 67, 1055 (1991).E.Eisenriegler and M.Stapper,Phys.Rev. B 50, 10009 (1994).328

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