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Abstract : We present a general framework in which non-linear optical phenomena for an ensemble of accelerated atoms can be studied. We show the equivalence of various approaches through frame transformations. This equivalence is understood within the context of a covariant formalism which is briefly sketched. The choice of the frame, in which the atoms are not accelerated but where the light spectrum and the atomic source term are correspondingly modified, leads to the simplest calculation. It enables one to use the usual density matrix diagrams and associated rules. Explicit examples are given in the case of a sinusoidal gravitational wave. Finally a brief discussion of the signal-to-noise ratio of the sidebands induced by gravitational waves on saturation resonances is outlined.

Keywords : atomic spectra gravitational waves nonlinear optics nonlinear optical phenomena laser spectroscopy accelerated atoms frame transformations covariant formalism light spectrum atomic source density matrix diagrams sinusoidal gravitational wave saturation resonances





Autor: Ch. J. Borde J. Sharma Ph. Tourrenc Th. Damour

Fuente: https://hal.archives-ouvertes.fr/



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