333 citations · 821 across the 19 of their papers we have counts for
4 papers · 1 filter
The Cosmological Spinor
Jibril Ben Achour, Etera R. Livine
We build upon previous investigation of the one-dimensional conformal symmetry of the Friedman-Lema\^ itre-Robertson-Walker (FLRW) cosmology of a free scalar field and make it expl…
Towards consistent black-to-white hole bounces from matter collapse
Jibril Ben Achour, Suddhasattwa Brahma, Shinji Mukohyama +1
This article presents a new model-independent constraint for bouncing black hole geometries. Using the thin shell formalism, this constraint sets a bound on the minimal allowed rad…
Bouncing compact objects. Part II: Effective theory of a pulsating Planck star
Jibril Ben Achour, Jean-Philippe Uzan
This article presents an effective quantum extension of the seminal Oppenheimer-Snyder (OS) collapse in which the singularity resolution is modeled using the effective dynamics of…
Bouncing compact objects I: Quantum extension of the Oppenheimer-Snyder collapse
Jibril Ben Achour, Suddhasattwa Brahma, Jean-Philippe Uzan
This article proposes a generalization of the Oppenheimer-Snyder model which describes a bouncing compact object. The corrections responsible for the bounce are parameterized in a…