Superluminal dispersion relations and the Unruh effect

Massimiliano Rinaldi

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    Résumé

    In the context of quantum gravity phenomenology, we study the Unruh effect in the presence of superluminal dispersion relations. In particular, we estimate the response function and the probability rate for an accelerated detector coupled to a massless scalar field, whose dispersion relation becomes essentially quadratic beyond a threshold momentum $k_p$. By means of perturbative analysis, we show that superluminal dispersion induces a correction to the Planckian spectrum, which tends to vanish as $k_p$ increases.
    langue originaleIndéfini/inconnu
    journalPhys. Rev. D
    Les DOIs
    Etat de la publicationPublié - 5 févr. 2008

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