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gr-qc2007★ 7 cited
Adiabatic renormalization in theories with modified dispersion relations
D. Lopez Nacir, F. D. Mazzitelli, C. Simeone
We generalize the adiabatic renormalization to theories with dispersion relations modified at energies higher than a new scale . We obtain explicit expressions for the mean va…
gr-qc2005
Renormalized Stress Tensor for trans-Planckian Cosmology
D. Lopez Nacir, F. D. Mazzitelli, C. Simeone
Finite expressions for the mean value of the stress tensor corresponding to a scalar field with a generalized dispersion relation in a Friedman--Robertson--Walker universe are obta…