Quantum Cherenkov radiation at the relative sliding of two transparent plates |
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| Authors: | A. I. Volokitin B. N. Y. Persson |
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| Affiliation: | 1.Peter Grünberg Institut, Forschungszentrum,Jülich,Germany;2.Samara State Technical University,Samara,Russia;3.Samara State Aerospace University,Samara,Russia |
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| Abstract: | Quantum Cherenkov radiation and quantum friction at the relative sliding of two transparent plates with the refractive index n have been studied in a fully relativistic theory. Radiation appears at velocities above the threshold value, v > v c = 2nc/(n 2 + 1). The contribution from s-polarized electromagnetic waves dominates near the threshold velocity. However, in the ultrarelativistic case (v → c), contributions from both polarizations are much larger than those in a nonrelativistic theory and a new contribution from the mixing of waves with different polarizations appears. The numerical results are supplemented by analytical calculations near the threshold velocity and the speed of light. |
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