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Given a field vacuum state in a black hole spacetime, this state can be analysed in terms of how it is perceived (in terms of particle content) by different observers. This can be done by means of the effective-temperature function introduced by[...]texto impreso
Barceló, Carlos ; Carballo- Rubio, Raúl ; Garay Elizondo, Luis Javier ; Gómez Escalante, Ricardo | American Physical Society | 2012-10-22We reappraise some of the hybrid classical-quantum models proposed in the literature with the goal of retrieving some of their common characteristics. In particular, first, we analyze in detail the Peres-Terno argument regarding the inconsistenc[...]texto impreso
Observational indications combined with analyses of analogue and emergent gravity in condensed matter systems support the possibility that there might be two distinct energy scales related to quantum gravity: the scale that sets the onset of qua[...]texto impreso
Barceló, Carlos ; Carballo-Rubio, Raúl ; Garay Elizondo, Luis Javier | American Physical Society | 2012-04-02We explicitly compare the structure of the renormalized stress-energy tensor of a massless scalar field in a (1 + 1) curved spacetime as obtained by two different strategies: normal-mode construction of the field operator and one-loop effective [...]texto impreso
Barceló, Carlos ; Carballo Rubio, Raúl ; Garay Elizondo, Luis Javier | American Physical Society | 2014-06-16It is commonly accepted that general relativity is the only solution to the consistency problem that appears when trying to build a theory of interacting gravitons (massless spin-2 particles). Padmanabhan’s 2008 thought-provoking analysis raised[...]
