Casimir self-stress in a dielectric sphere
| Autor: | Yael Avni, Ulf Leonhardt |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Isotropy Shell (structure) FOS: Physical sciences General Physics and Astronomy Dielectric 01 natural sciences Electromagnetic radiation 010305 fluids & plasmas Casimir effect Stress (mechanics) Classical mechanics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences SPHERES Quantum Physics (quant-ph) 010306 general physics Quantum fluctuation |
| Zdroj: | Annals of Physics. 395:326-340 |
| ISSN: | 0003-4916 |
| DOI: | 10.1016/j.aop.2018.06.002 |
| Popis: | The dielectric sphere has been an important test case for understanding and calculating the vacuum force of a dielectric body onto itself. Here we develop a method for computing this force in homogeneous spheres of arbitrary dielectric properties embedded in arbitrary homogeneous backgrounds, assuming only that both materials are isotropic and dispersionless. Our results agree with known special cases; most notably we reproduce the prediction of Boyer and Schwinger et al. of a repulsive Casimir force of a perfectly reflecting shell. Our results disagree with the literature in the dilute limit. We argue that the Casimir self-stress cannot be regarded as due to pair-wise Casimir–Polder interactions, but rather due to reflections of virtual electromagnetic waves. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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