Using a quantum tunneling derivation, we show the resilience of Hawking radiation in Lorentz violating gravity. In particular, we show that the standard derivation of the Hawking effect in relativistic quantum field theory can be extended to Lorentz breaking situations thanks to the presence of universal horizons (causal boundaries for infinite speed signals) inside black hole solutions. Correcting previous studies, we find that such boundaries are characterized by a universal temperature governed by their surface gravity. We also show that within the tunneling framework, given the pole structure and the tunneling path, only a vacuum state set in the preferred frame provides a consistent picture. Our results strongly suggest that the robustness of black hole thermodynamics is ultimately linked to the consistency of quantum field theories across causal boundaries.

On the Resilience of Black Hole Evaporation: Gravitational Tunneling through Universal Horizons / Schneider, M.; Del Porro, F.; Herrero-Valea, M.; Liberati, S.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 2531:1(2023), pp. 1-16. [10.1088/1742-6596/2531/1/012013]

On the Resilience of Black Hole Evaporation: Gravitational Tunneling through Universal Horizons

Schneider, M.;Del Porro, F.;Liberati, S.
2023-01-01

Abstract

Using a quantum tunneling derivation, we show the resilience of Hawking radiation in Lorentz violating gravity. In particular, we show that the standard derivation of the Hawking effect in relativistic quantum field theory can be extended to Lorentz breaking situations thanks to the presence of universal horizons (causal boundaries for infinite speed signals) inside black hole solutions. Correcting previous studies, we find that such boundaries are characterized by a universal temperature governed by their surface gravity. We also show that within the tunneling framework, given the pole structure and the tunneling path, only a vacuum state set in the preferred frame provides a consistent picture. Our results strongly suggest that the robustness of black hole thermodynamics is ultimately linked to the consistency of quantum field theories across causal boundaries.
2023
2531
1
1
16
012013
10.1088/1742-6596/2531/1/012013
https://arxiv.org/abs/2303.14235
Schneider, M.; Del Porro, F.; Herrero-Valea, M.; Liberati, S.
File in questo prodotto:
File Dimensione Formato  
Schneider_2023_J._Phys.:_Conf._Ser._2531_012013.pdf

non disponibili

Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
Dimensione 1.75 MB
Formato Adobe PDF
1.75 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/137513
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact