BMS group at spatial infinity: the Hamiltonian (ADM) approach
نویسندگان
چکیده
منابع مشابه
On the Relation between Adm and Bondi Energy-momenta Iii – Perturbed Radiative Spatial Infinity
Abstract. In a vacuum spacetime equipped with the Bondi’s radiating metric which is asymptotically flat at spatial infinity including gravitational radiation (Condition D), we establish the relation between the ADM total energy-momentum and the Bondi energy-momentum for perturbed radiative spatial infinity. The perturbation is given by defining the “real” time the sum of the retarded time, the ...
متن کاملOn the Relation between Adm and Bondi Energy-momenta Ii – Radiative Spatial Infinity
It is a fundamental problem in gravitational radiation what the relation is between the ADM energy-momentum and the Bondi energy-momentum. Ashtekar and Magnon-Ashtekar demonstrated the mass at spatial infinity is the past limit of the Bondi mass taken as the cut approaches the “point” of spatial infinity in the frame of Penrose conformal compactification [2]. It was proved the standard ADM mass...
متن کاملOn the Relation between Adm and Bondi Energy-momenta – Radiative Spatial Infinity
It is a fundamental problem in gravitational radiation what the relation is between the ADM energy-momentum and the Bondi energy-momentum. Ashtekar and Magnon-Ashtekar demonstrated the mass at spatial infinity is the past limit of the Bondi mass taken as the cut approaches the “point” of spatial infinity in the frame of Penrose conformal compactification [2] (See also the related works [6, 9, 1...
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We study the Dehn function at infinity in the mapping class group, finding a polynomial upper bound of degree four. This is the same upper bound that holds for arbitrary right-angled Artin groups. Dehn functions quantify simple connectivity. That is, in a simply-connected space, every closed curve is the boundary of some disk; the Dehn function measures the area required to fill the curves of a...
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The importance of imposing proper boundary conditions for fields at spatial infinity in the Casimir calculations is elucidated. PACS numbers: 11.10.Gh; 42.50.Pq; 03.70.+k; 03.65.Sq, 11.30.Ly
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2018
ISSN: 1029-8479
DOI: 10.1007/jhep03(2018)147