Spinning bodies in general relativity from bosonic worldline oscillators by Kays Haddad, Gustav Uhre Jakobsen, Gustav Mogull, Jan Plefka

“…Abstract Worldline quantum field theory (WQFT) has proven itself a powerful tool for classical two-body scattering calculations in general relativity. In this paper we develop a new worldline action involving bosonic oscillators, which enables the use of the WQFT formalism to describe massive compact bodies to all orders in their spins. …”
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GR-Athena++: General-relativistic Magnetohydrodynamics Simulations of Neutron Star Spacetimes by William Cook, Boris Daszuta, Jacob Fields, Peter Hammond, Simone Albanesi, Francesco Zappa, Sebastiano Bernuzzi, David Radice

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Strolling along gravitational vacua by Emine Şeyma Kutluk, Ali Seraj, Dieter Van den Bleeken

“…Abstract We consider General Relativity (GR) on a space-time whose spatial slices are compact manifolds M with non-empty boundary ∂M. …”
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Astrotheology: The natural interface between hyperspace and the Trinity by A.C. Pieterse

“… Over the past few decades, physicists are seeking a unifying theory that could encapsulate the theories of general relativity and quantum mechanics, our understanding of the very big and the infinitesimal small, into one all-inclusive theory. …”
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Prediction of mass and radii of anisotropic polytropic compact objects with Buchdahl-I metric by S. A. Mardan, A. Zahra, Muhammad Bilal Riaz, Rubab Manzoor, Adnan Malik

“…A generalized polytropic stellar model within the framework of general relativity is derived by employing the Buchdahl-I metric. …”
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From relativistic gravity to the Poisson equation by Eric A. Bergshoeff, Giacomo Giorgi, Luca Romano

“…Abstract We consider the non-relativistic limit of general relativity coupled to a (p+1)-form gauge field and a scalar field in arbitrary dimensions and investigate under which conditions this gives rise to a Poisson equation for a Newton potential describing Newton-Cartan gravity outside a massive p-dimensional extended object, a so-called p-brane. …”
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Special N-dimensional charged anti-de-Sitter black holes in f(Q) gravitational theory by G.G.L. Nashed

“…Furthermore, we demonstrate that the curvature singularities of these solutions are less severe than those in charged general relativity solutions. Finally, we calculate thermodynamic parameters, including entropy, Hawking temperature, and Gibbs free energy. …”
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On stabilization of magnetically charged brane shell and over-extremality by Sohei Tsukahara

“…We demonstrate a new stabilization mechanism of the brane shell in 4D spacetime. We add a general relativity-inspired gravitational correction to the brane shells and investigate the influence on its potential. …”
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Correlated systematic uncertainties and errors-on-errors in measurement combinations with an application to the 7–8 TeV ATLAS–CMS top quark mass combination by Enzo Canonero, Glen Cowan

“…In this paper, we obtain a general relation between the BLUE and nuisance-parameter methods when the correlations induced by systematic uncertainties are non-trivial (i.e., not $$\pm 1$$ ± 1 or 0), and we then generalise the nuisance-parameter approach to include errors-on-errors. …”
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