7 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.…
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…
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…
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…
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…