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Paper   IPM / Physic / 11167
School of Physics
  Title:   Fluctuation-Induced Interaction between Randomly Charged Dielectrics
  Author(s): 
1.  A. Naji
2.  David S. Dean
3.  J. Sarabadani
4.  Ron R. Horgan
5.  R. Podgornik
  Status:   Published
  Journal: Phys. Rev. Lett.
  Vol.:  104
  Year:  2010
  Pages:   060601
  Supported by:  IPM
  Abstract:
Monopolar charge disorder effects are studied in the context of fluctuation-induced interactions between neutral dielectric slabs. It is shown that quenched bulk charge disorder gives rise to an additive contribution to the net interaction force which decays as the inverse distance between dielectric surfaces. This effect may thus completely mask the standard Casimir-van der Waals effect. By contrast, annealed (bulk or surface) charge disorder leads to a net interaction force whose large-distance behavior coincides with the universal Casimir force between perfect conductors, which scales as inverse cubic distance, and the dielectric properties enter only in subleading corrections.

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