Work

Einstein’s equations from the stretched future light cone

Year: 2018

Type: article

Abstract: We define the stretched future light cone, a timelike hypersurface composed of the worldlines of radially accelerating observers with constant and uniform proper acceleration. By attributing temperature and entropy to this hypersurface, we derive Einstein's equations from the Clausius theorem. Moreover, we show that the gravitational equations of motion for a broad class of diffeomorphism-invariant theories of gravity can be obtained from thermodynamics on the stretched future light cone, provided the Bekenstein-Hawking entropy is replaced by the Wald entropy.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/physrevd.98.026018

Authors: Maulik Parikh, Andrew Svesko

Institution: Arizona State University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: John Templeton Foundation, Department of Science and Technology, Ministry of Science and Technology, India

Awards: G1361980891, The Matter with Gravity