# Spacetime thermodynamics in the presence of torsion

@article{Dey2017SpacetimeTI, title={Spacetime thermodynamics in the presence of torsion}, author={Ramit Dey and Stefano Liberati and Daniele Pranzetti}, journal={Physical Review D}, year={2017}, volume={96}, pages={124032} }

It was shown by Jacobson in 1995 that the Einstein equation can be derived as a local constitutive equation for an equilibrium spacetime thermodynamics. With the aim to understand if such thermodynamical description is an intrinsic property of gravitation, many attempts have been done so far to generalise this treatment to a broader class of gravitational theories. Here we consider the case of the Einstein-Cartan theory as a prototype of theories with non-propagating torsion. In doing so, we…

## 26 Citations

Spacetime thermodynamics with contorsion

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We show that the equation of motion of scalar-tensor theory, along the likes of GR and its higher order generalization i.e Lanczos-Lovelock gravity, acquires thermodynamic identity when projected on…

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The Noether charge associated to diffeomorphism invariance in teleparallel gravity is derived. It is shown that the latter yields the ADM mass of an asymptotically flat spacetime. The black hole…

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We show that the equation of motion of scalar-tensor theory acquires thermodynamic identity when projected on a generic null surface. The relevant projection is given by Eabl k, where Eab = 8πT (m)…

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All energy is gravitational energy. That is the consequence of the equivalence principle, according to which gravity is the universal interaction. The physical charges of this interaction have…

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- MathematicsJournal of Cosmology and Astroparticle Physics
- 2020

In the context of extended theories of teleparallel gravity f(T) we derive the focusing conditions for a one-parameter dependent congruence of timelike auto-parallels of the Levi-Civita connection.…

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- 2019

When spacetime torsion is present, geodesics and autoparallels generically do not coincide. In this work, the well-known method that uses Killing vectors to solve the geodesic equations is…

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