3 papers
gr-qc2025
Universal Horizons without Hypersurface Orthogonality
Francesco Del Porro, Stefano Liberati, Jacopo Mazza
A key consequence of Lorentz-violating gravity is the emergence of modified dispersion relations implying the absence of a universal maximum propagation speed. This challenges the…
gr-qc2025
Rescuing the Unruh Effect in Lorentz Violating Gravity
F. Del Porro, M. Herrero-Valea, S. Liberati +1
While the robustness of Hawking radiation in the presence of UV Lorentz breaking is well-established, the Unruh effect has posed a challenge, with a large literature concluding tha…
gr-qc2025
Tunneling method for Hawking quanta in analogue gravity
Francesco Del Porro, Stefano Liberati, Marc Schneider
Analogue Hawking radiation from acoustic horizons is now a well-established phenomenon, both theoretically and experimentally. Its persistence, despite the modified dispersion rela…