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gr-qc2026★ 1 cited
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…
gr-qc2024★ 1 cited
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…