Physics – Quantum Physics
Scientific paper
2008-11-10
S. Odintsov et al. (eds.) "The Casimir Effect and Cosmology" (Tomsk State Pedagogical University Press, Tomsk, 2008) p. 45
Physics
Quantum Physics
Contribution to the anniversary volume of TSPU Vestnik in honour of Professor Iver Brevik
Scientific paper
The Casimir effect, the dispersion force attracting neutral objects to each other, may be understood in terms of multiple scattering of light between the interacting bodies. We explore the simple model in which the bodies are assumed to possess reflection coefficients independent of the energy and angle of incidence of an impinging field and show how a multitude of information can be extracted within the geometry of two parallel plates. The full thermal behaviour of the model is found and we discuss how non-analytic behaviour emerges in the combined limits of zero temperature and perfect reflection. Finally we discuss the possibility of a generalised force conjugate to the reflection coefficients of the interacting materials and how, if the materials involved were susceptible to changing their reflective properties, this would tend to enhance the Casimir attraction. The dependence of this correction on separation is studied for the constant reflection model, indicating that the effect is likely to be negligible under most experimental circumstances.
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