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- Centre National de la Recherche ScientifiqueFR204 papers
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48 papers · 1 filter
Regularization of geodesics in static spherically symmetric Kerr-Schild spacetimes
Pablo Galindo, Marc Mars
We describe a method to analyze causal geodesics in static and spherically symmetric spacetimes of Kerr-Schild form which, in particular, allows for a detailed study of the geodesi…
The Double Copy Structure of Soft Gravitons
Agustin Sabio Vera, Miguel A. Vazquez-Mozo
The subleading corrections to factorization theorems for soft bremsstrahlung in nonabelian gauge theories and gravity are investigated in the case of a five point amplitude with fo…
Probing gravity with PLANCK data on cluster pressure profiles
I. De Martino, M. De Laurentis, F. Atrio-Barandela +1
Analytical -gravity models introduce Yukawa-like corrections to the Newtonian potential in the weak field limit. These models can explain the dynamics of galaxies and cluster…
The Optimal Arbitrary-Proportional Finite-Set-Partitioning
Tiancheng Li
This paper considers the arbitrary-proportional finite-set-partitioning problem which involves partitioning a finite set into multiple subsets with respect to arbitrary nonnegative…
Soliton defects in one-gap periodic system and exotic supersymmetry
Adrian Arancibia, Francisco Correa, Vit Jakubsky +2
By applying Darboux-Crum transformations to the quantum one-gap Lame system, we introduce an arbitrary countable number of bound states into forbidden bands. The perturbed potentia…
Probing the epoch of pre-reionization by cross-correlating cosmic microwave and infrared background anisotropies
Fernando Atrio-Barandela, Alexander Kashlinsky
The epoch of first star formation and the state of the intergalactic medium (IGM) at that time are not directly observable with current telescopes. The radiation from those early s…