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EnglishIn 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 kp. By means of a perturbative analysis, we show that superluminal dispersion induces a correction to the Planckian spectrum, which tends to vanish as kp increases. © 2008 The American Physical Society.
| Titolo: | Superluminal dispersion relations and the Unruh effect |
| Autori Unitn: | |
| Anno di pubblicazione: | 2008 |
| Titolo del periodico: | |
| Abstract: | 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 kp. By means of a perturbative analysis, we show that superluminal dispersion induces a correction to the Planckian spectrum, which tends to vanish as kp increases. © 2008 The American Physical Society. |
| Handle: | http://hdl.handle.net/11572/106054 |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Rinaldi - 2008 - Superluminal dispersion relations and the Unruh effect.pdf | Versione editoriale | Tutti i diritti riservati (All rights reserved) | Open Access Visualizza/Apri |
http://hdl.handle.net/11572/106054
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