Results 61 to 70 of about 13,435 (197)

Recent Developments in Degenerate Higher Order Scalar Tensor Theories

Annalen der Physik, Volume 537, Issue 2, February 2025.
Degenerate Higher Order Scalar Tensor theories are reviewed, together with their applications in cosmology and astrophysics. These theories have been applied to build models of the early universe, in the description of the late‐time cosmic acceleration, as well as in astrophysics, including black hole physics. They have the potential to provide answers
Andrei Lazanu
wiley   +1 more source

No scalar-haired Cauchy horizon theorem in charged Gauss–Bonnet black holes

European Physical Journal C: Particles and Fields
Recently, a “no inner (Cauchy) horizon theorem” for static black holes with non-trivial scalar hairs has been proved in Einstein–Maxwell–scalar theories and also in Einstein–Maxwell–Horndeski theories with the non-minimal coupling of a charged (complex ...
Deniz O. Devecioğlu, Mu-In Park
doaj   +1 more source

Cost of holographic path integrals

SciPost Physics, 2023
We consider proposals for the cost of holographic path integrals. Gravitational path integrals within finite radial cutoff surfaces have a precise map to path integrals in $T\overline{T}$ deformed holographic CFTs. In Nielsen's geometric formulation cost
Ammanamanchi Ramesh Chandra, Jan de Boer, Mario Flory, Michal P. Heller, Sergio Hörtner, Andrew Rolph
doaj   +1 more source

Rectifying no-hair theorems in Gauss-Bonnet theory

Physical Review D, 2022
v2 : 6 pages, 6 figures, remove/replace some figures, references are ...
Alexandros Papageorgiou, Chan Park, Miok Park   +2 more
openaire   +2 more sources

Nonequilibrium Membrane Dynamics Induced by Active Protein Interactions and Chemical Reactions: A Review

ChemSystemsChem, Volume 7, Issue 1, January 2025.
We discuss the spatiotemporal patterns and nonequilibrium fluctuations of membranes, particularly on theoretical analyses and simulations. Protein active forces enhance or suppress the membrane fluctuations. Active binding/unbinding of proteins can induce traveling waves and Turing patterns accompanied by membrane deformation.
Hiroshi Noguchi
wiley   +1 more source

Deflection angle of photon from magnetized black hole and effect of nonlinear electrodynamics

European Physical Journal C: Particles and Fields, 2019
In this paper, we analyze deflection angle of photon from magnetized black hole within non-linear electrodynamics with parameter $$\beta $$ β . In doing so, we find the corresponding optical spacetime metric and then we calculate the Gaussian optical ...
Wajiha Javed, Jameela Abbas, Ali Övgün
doaj   +1 more source

Refined Holographic Entanglement Entropy for the AdS Solitons and AdS black Holes

, 2013
We consider the refinement of the holographic entanglement entropy for the holographic dual theories to the AdS solitons and AdS black holes, including the corrected ones by the Gauss-Bonnet term.
Amico, Anselmi, Bo Ning, Brigante, Brigante, Buchel, Cai, Calabrese, Callan, Casini, Chen, Chen, Chen, Chen, Cvetic, Eisert, Evenbly, Evenbly, Feng-Li Lin, Fursaev, Grover, Gubser, Hartnoll, Hartnoll, Hayden, Hertzberg, Holzhey, Horowitz, Hsu, Huang, Huang, Hubeny, Jafferis, Kitaev, Klebanov, Klebanov, Komargodski, Komargodski, Levin, Liu, Masafumi Ishihara, Myers, Myers, Myers, Nishioka, Nishioka, Ogawa, Pakman, Pawlowski, Pollmann, Pollmann, Ryu, Ryu, Schuch, Schwimmer, Solodukhin, Srednicki, Swingle, Swingle, Verstraete, Vidal, Vidal, Witten, Witten, Zamolodchikov   +64 more
core   +1 more source

All-mass n-gon integrals in n dimensions

Journal of High Energy Physics, 2020
We explore the correspondence between one-loop Feynman integrals and (hyperbolic) simplicial geometry to describe the all-mass case: integrals with generic external and internal masses.
Jacob L. Bourjaily, Einan Gardi, Andrew J. McLeod, Cristian Vergu   +3 more
doaj   +1 more source

Matching the Vilkovisky–DeWitt Effective Action of Quantum Gravity to String Theory

Fortschritte der Physik, Volume 72, Issue 12, December 2024.
Abstract In this work, the matching of the Vilkovisky–DeWitt effective action of quantum gravity is discussedwith an example of an ultra‐violet complete theory of quantum gravity. The authors show how this matching enables a calculation of the local Wilson coefficients of the effective action. Several examples in string theory are provided.
Xavier Calmet, Elias Kiritsis, Folkert Kuipers, Dieter Lüst   +3 more
wiley   +1 more source

Conformally invariant random fields, Liouville quantum gravity measures, and random Paneitz operators on Riemannian manifolds of even dimension

Journal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract For large classes of even‐dimensional Riemannian manifolds (M,g)$(M,g)$, we construct and analyze conformally invariant random fields. These centered Gaussian fields h=hg$h=h_g$, called co‐polyharmonic Gaussian fields, are characterized by their covariance kernels k which exhibit a precise logarithmic divergence: |k(x,y)−log1d(x,y)|≤C$\big ...
Lorenzo Dello Schiavo, Ronan Herry, Eva Kopfer, Karl‐Theodor Sturm   +3 more
wiley   +1 more source