Physics Seminar
Date: Wednesday, 29 January 2025
Time: 1.45 PM
Venue: Lecture Hall 2
Supertranslations at Spatial and Timelike Infinities in the First-Order Formalism
Divyesh Solanki
IIIT Allahabad.
29-01-25

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Abstract

We study supertranslations at spatial and future timelike infinity in the first-order formalism. We relax the Ashtekar-Engle-Sloan boundary conditions to allow supertranslations at the spatial infinity and obtain the precise form of the tetrads and Lorentz connections. Employing the covariant phase space technique, we obtain the Hamiltonian charges for the supertranslations at both timelike and spatial infinities. The charges obtained are shown to match the expressions reported adopting the metric-based approach.