359 citations · 1.7k across the 33 of their papers we have counts for
18 papers · 1 filter
Revisiting Coleman-de Luccia transitions in the AdS regime using holography
Jewel K. Ghosh, Elias Kiritsis, Francesco Nitti +1
Coleman-de Luccia processes for AdS to AdS decays in Einstein-scalar theories are studied. Such tunnelling processes are interpreted as vev-driven holographic RG flows of a quantum…
Turning in the landscape: a new mechanism for generating Primordial Black Holes
Jacopo Fumagalli, Sébastien Renaux-Petel, John W. Ronayne +1
We propose a new model-independent mechanism for producing primordial black holes from a period of multi-field inflation. This requires an enhancement of primordial fluctuations at…
Back-reaction in massless de Sitter QFTs: holography, gravitational DBI action and f(R) gravity
Jewel Kumar Ghosh, Elias Kiritsis, Francesco Nitti +1
We employ gauge-gravity duality to study the backreaction effect of 4-dimensional large- quantum field theories on constant-curvature backgrounds, and in particular de Sitter sp…
The self-tuning of the cosmological constant and the holographic relaxion
Yuta Hamada, Elias Kiritsis, Francesco Nitti +1
We propose a brane-world setup based on gauge/gravity duality that permits the simultaneous realisation of self-tuning of the cosmological constant and a stabilisation of the elect…
Axion RG flows and the holographic dynamics of instanton densities
Yuta Hamada, Elias Kiritsis, Francesco Nitti +1
Axionic holographic RG flow solutions are studied in the context of general Einstein-Axion-Dilaton theories. A non-trivial axion profile is dual to the (non-perturbative) running o…
Holographic RG flows on curved manifolds and the -theorem
Jewel Kumar Ghosh, Elias Kiritsis, Francesco Nitti +1
We study -functions in the context of field theories on using gauge-gravity duality, with the radius of playing the role of RG scale. We show that the on-shell actio…