Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Grant N. Remmen"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-51 (2024)
Abstract It was recently shown that (near-)extremal Kerr black holes are sensitive probes of small higher-derivative corrections to general relativity. In particular, these corrections produce diverging tidal forces on the horizon in the extremal lim
Externí odkaz:
https://doaj.org/article/f1a2e53bae424bab84f47ebd1f1b2df7
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-27 (2023)
Abstract In AdS/CFT, observables on the boundary are invariant under renormalization group (RG) flow in the bulk. In this paper, we study holographic entanglement entropy under bulk RG flow and find that it is indeed invariant. We focus on tree-level
Externí odkaz:
https://doaj.org/article/ba94ebde3fd4437cb902f82ef0fe0a42
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-43 (2023)
Abstract Positivity bounds represent nontrivial limitations on effective field theories (EFTs) if those EFTs are to be completed into a Lorentz-invariant, causal, local, and unitary framework. While such positivity bounds have been applied in a wide
Externí odkaz:
https://doaj.org/article/9abcdde167a5477790182c4581c1f65c
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 3, Pp 1-17 (2023)
Abstract We construct and study general static, spherically symmetric, magnetically charged solutions in Einstein-Maxwell-dilaton gravity in four dimensions. That is, taking Einstein gravity coupled to a U(1) gauge field and a massless dilaton — e.
Externí odkaz:
https://doaj.org/article/2b0fdb62cc8a4b048bf3e30e768aea1e
Autor:
Clifford Cheung, Grant N. Remmen
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 1, Pp 1-28 (2023)
Abstract String theory offers an elegant and concrete realization of how to consistently couple states of arbitrarily high spin. But how unique is this construction? In this paper we derive a novel, multi-parameter family of four-point scattering amp
Externí odkaz:
https://doaj.org/article/a7bf23e4b5464dc0b9e025c83e370042
Autor:
Grant N. Remmen, Nicholas L. Rodd
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-43 (2022)
Abstract We construct new dispersive sum rules for the effective field theory of the standard model at mass dimension six. These spinning sum rules encode information about the spin of UV states: the sign of the IR Wilson coefficients carries a memor
Externí odkaz:
https://doaj.org/article/6c9717f60d3048a694566d975a01f6ca
Autor:
Juan Maldacena, Grant N. Remmen
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 8, Pp 1-10 (2022)
Abstract We point out some common qualitative features of the Coon amplitude — a family of deformations of the Veneziano amplitude with logarithmic Regge trajectories — and the open string scattering amplitude for strings ending on a D-brane in A
Externí odkaz:
https://doaj.org/article/88d98597349e41c2868be25a303bf1d7
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-16 (2022)
Abstract We uncover a symmetry of the linear Einstein equations near extremal horizons. Specifically, acting with a spherically symmetric linearized diffeomorphism on the perturbative solutions to the Einstein-Maxwell equations in the Bertotti-Robins
Externí odkaz:
https://doaj.org/article/d3fa97c80c7a4039a8376ee53f51c016
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-36 (2022)
Abstract We consider the shift of charge-to-mass ratio for extremal black holes in the context of effective field theory, motivated by the Weak Gravity Conjecture. We constrain extremality corrections in different regimes subject to unitarity and cau
Externí odkaz:
https://doaj.org/article/d88529aee6944052a71215a8b5147885
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-30 (2021)
Abstract We uncover a novel structure in Einstein-Maxwell-dilaton gravity: an AdS2 × S 2 solution in string frame, which can be obtained by a near-horizon limit of the extreme GHS black hole with dilaton coupling λ ≠ 1. Unlike the Bertotti-Robins
Externí odkaz:
https://doaj.org/article/f74d77f90360463281fda25333b7db59