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6 papers · 2 filters
Thermodynamics of spacetime and unimodular gravity
Ana Alonso-Serrano, Marek Liška
In this review we discuss emergence of unimodular gravity (or, more precisely, Weyl transverse gravity) from thermodynamics of spacetime. By analyzing three different ways to obtai…
The Kerr-de Sitter spacetime in Bondi coordinates
Sk Jahanur Hoque, Amitabh Virmani
We use zero angular momentum null geodesics in the Kerr-de Sitter spacetime to transform the metric in a generalised Bondi coordinate system. We write the metric components explici…
Thermodynamics of spacetime from minimal area
Ana Alonso-Serrano, Marek Liška
Motivated by exploring the interface between thermodynamics of spacetime and quantum gravity effects, we develop a heuristic derivation of Hawking temperature and Bekenstein entrop…
Cosmological magnetic field---the boost-symmetric case
Jiří Veselý, Martin Žofka
We find a class of cylindrically symmetric, static electrovacuum spacetimes generated by a non-homogeneous magnetic field and involving the cosmological constant and one additional…
Cylindrical spacetimes due to radial magnetic fields
Jiří Veselý, Martin Žofka
We continue our previous study of cylindrically symmetric, static electrovacuum spacetimes generated by a magnetic field, involving optionally the cosmological constant, and invest…
Gravitational wave templates from Extreme Mass Ratio Inspirals
Viktor Skoupý, Georgios Lukes-Gerakopoulos
An extreme mass ratio inspiral takes place when a compact stellar object is inspiraling into a supermassive black hole due to gravitational radiation reaction. Gravitational waves…