Abstract
The relevant anomalous QED processes related to spontaneous emission (SpE) and stimulated emission (StE) from atoms or molecules in a Casimir microcavity are presented from both experimental and theoretical perspectives. The new phenomenology is determined by the condition of microcavity extreme field confinement, implying field trapping within space-time dimensions of the order of the deBroglie wavelength of the particle, here the photon with λD = λ. Important new features of the overall emission phenomenon are investigated experimentally and theoretically. These include careful consideration of the space anisotropy with a consequent novel nonexponential decay effect first investigated in our laboratory. This kind of investigation allows the first study of the delocalization of the photon-particle after atomic de-excitation. This process, first investigated theoretically by Einstein in 1917, still presents intriguing aspects related to relativistic causality, "light-cone" emission, and the transitional dynamics toward the free-particle condition. This process is being investigated in our laboratory with femtosecond time resolution. The first investigation of the transverse properties of the electromagnetic field and of its transverse nonlocality may lead to quantum nonseparability and then to a novel Einstein-Podolsky-Rosen effect. Here we report the first study of this novel quantum-mechanical phenomenology by the detection of the fringing pattern determined by transversely coupled, partially phase-locked microlasers.
© 1991 Optical Society of America
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