49 citations · 94 across the 13 of their papers we have counts for
13 papers
Kerroll black holes
Florian Ecker, Daniel Grumiller, Lucas Hörl +2
We construct rotating black holes in Carroll gravity using two distinct approaches. In one of them, we exploit the freedom in the Carroll compatible connection to encode rotation.…
Carroll symmetries in field theory and gravity
Florian Ecker
This thesis explores several facets of Carroll symmetries through their applications to field theories and gravity. The geometric description of curved Carroll manifolds is develop…
Critical spacetime crystals in continuous dimensions
Christian Ecker, Florian Ecker, Daniel Grumiller +1
We numerically construct a one-parameter family of critical spacetimes in arbitrary continuous dimensions D>3. This generalizes Choptuik's D=4 solution to spherically symmetric mas…
Analytic discrete self-similar solutions of Einstein-Klein-Gordon at large D
Christian Ecker, Florian Ecker, Daniel Grumiller
Discretely self-similar solutions govern critical gravitational collapse and have been known only numerically since Choptuik's pioneering work. We construct, in closed analytic for…
Postcarrollian gravity
Florian Ecker, Daniel Grumiller, Patricio Salgado-Rebolledo
We construct postcarrollian gravity models in two, three, and four spacetime dimensions by applying algebraic expansion methods. As a byproduct, we present the most general postcar…
Tantum Gravity
Florian Ecker, Adrien Fiorucci, Daniel Grumiller
We argue there is an interesting triple-scaling limit of quantum gravity, namely when Planck's constant scales to infinity while Newton's constant and the speed of light tend to ze…
Angle of Null Energy Condition Lines in Critical Spacetimes
Christian Ecker, Florian Ecker, Daniel Grumiller
We identify a new critical parameter in Choptuik's gravitational collapse: the angle at which null energy condition (NEC) saturation lines intersect at the center of the critical s…
Carroll Hawking effect
Ankit Aggarwal, Florian Ecker, Daniel Grumiller +1
Carroll black holes with an associated Carroll temperature were introduced recently. So far, it is unclear if they exhibit a Hawking-like effect. To solve this, we study scalar fie…
Carroll swiftons
Florian Ecker, Daniel Grumiller, Marc Henneaux +1
We construct Carroll-invariant theories with fields propagating outside the Carroll lightcone, i.e., at a speed strictly greater than zero (`Carroll swiftons'). We first consider m…
Carroll black holes
Florian Ecker, Daniel Grumiller, Jelle Hartong +3
Despite the absence of a lightcone structure, some solutions of Carroll gravity show black hole-like behaviour. We define Carroll black holes as solutions of Carroll gravity that e…
Equivalences between 2D dilaton gravities, their asymptotic symmetries, and their holographic duals
Florian Ecker, Daniel Grumiller, Carlos Valcárcel +1
Dilaton gravities in two dimensions can be formulated as particular Poisson sigma models. Target space diffeomorphisms map different models to each other and establish a one-to-one…
dS as excitation of AdS
Florian Ecker, Daniel Grumiller, Robert McNees
We introduce a family of 2D dilaton gravity models with state-dependent constant curvature so that dS emerges as an excitation of AdS. Curiously, the strong coupling region…
2D holography beyond the Jackiw-Teitelboim model
Florian Ecker, Carlos Valcárcel, Dmitri Vassilevich
Having in mind extensions of 2D holography beyond the Jackiw-Teitelboim model we propose holographic counterterms and asymptotic conditions for a family of asymptotically AdS d…