Year: 2013
Type: article
Abstract: The null energy condition, in its usual form, can appear to be violated by transformations in the conformal frame of the metric. We propose a generalization of the form of the null energy condition to the Jordan frame, in which matter is non-minimally coupled, which reduces to the familiar form in the Einstein frame. Using our version of the null energy condition, we provide a direct proof of the second law of black hole thermodynamics in the Jordan frame.
Source: Classical and Quantum Gravity
Authors: Saugata Chatterjee, Damien A Easson, Maulik Parikh
Institution: Arizona State University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funder: U.S. Department of Energy
OpenAlex ID: W1490490293