Zobrazeno 1 - 10
of 153
pro vyhledávání: '"José M. M. Senovilla"'
Autor:
José M. M. Senovilla
Publikováno v:
Universe, Vol 8, Iss 9, p 478 (2022)
The existence of gravitational radiation arriving at null infinity J+, i.e., escaping from the physical system, is addressed in the presence of a non-negative cosmological constant Λ≥0. The case with vanishing Λ is well understood and relies on t
Externí odkaz:
https://doaj.org/article/1b122295c772470ebca8d22adacb1049
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 4, Pp 1-25 (2019)
Abstract New singularity theorems are derived for generic warped-product spacetimes of any dimension. The main purpose is to analyze the stability of (compact or large) extra dimensions against dynamical perturbations. To that end, the base of the wa
Externí odkaz:
https://doaj.org/article/0b3c365b2425413c8af244af3be1a74c
Autor:
José M. M. Senovilla
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-34 (2018)
Abstract The complete set of (field) equations for shells of arbitrary, even changing, causal character are derived in arbitrary dimension. New equations that seem to have never been considered in the literature emerge, even in the traditional cases
Externí odkaz:
https://doaj.org/article/31a8e9a03cb44b6f99bb0a54fc2a03d6
Autor:
José M. M. Senovilla
Publikováno v:
General Relativity and Gravitation. 54
Autor:
José M. M. Senovilla
A positive cosmological constant $\Lambda >0$ sets an upper limit for the area of marginally future-trapped surfaces enclosing a black hole (BH). Does this mean that the mass of the BH cannot increase beyond the corresponding limit? I analyze some si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3907df170c3ea57c06b02d4118857e69
http://arxiv.org/abs/2209.14585
http://arxiv.org/abs/2209.14585
Autor:
José M. M. Senovilla
Publikováno v:
Europhysics News. 52:25-28
An elusive idea that emerged on a pedestrian crossing revealed some of the mysteries inside black holes. Announced in barely a couple of pages, it has been worth the 2020 Nobel Prize in Physics.
Publikováno v:
Classical and Quantum Gravity. 39:165012
This is the second of two papers that study the asymptotic structure of space-times with a non-negative cosmological constant $\Lambda$. This paper deals with the case $\Lambda >0$. Our approach is founded on the `tidal energies' built with the Weyl
This is the first of two papers devoted to the asymptotic structure of space-time in the presence of a non-negative cosmological constant $\Lambda$. This first paper is concerned with the case of $\Lambda =0$. Our approach is fully based on the tidal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6420524d0174581940179c929e17202f
http://arxiv.org/abs/2105.09166
http://arxiv.org/abs/2105.09166
Gravitational waves have been directly detected and astronomical observations indicate that our Universe has a positive cosmological constant $\Lambda$. Nevertheless, a theoretical gauge-invariant notion of gravitational waves arriving at infinity (e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82fe503f5e9d37c4c5db9e10793c7879
Publikováno v:
Classical and Quantum Gravity. 38:209501
The first law of causal diamonds relates the area deficit of a small ball relative to flat space to the matter energy density it contains. At second order in the Riemann normal coordinate expansion, this energy density should receive contributions fr