PIRSA:18080001

Video URL

https://pirsa.org/18080001

Relativistic temperature gradients

Santiago, J. (2018). Relativistic temperature gradients. Perimeter Institute for Theoretical Physics. https://pirsa.org/18080001

Santiago, Jessica. Relativistic temperature gradients. Perimeter Institute for Theoretical Physics, Aug. 02, 2018, https://pirsa.org/18080001 

          @misc{ scivideos_PIRSA:18080001,
            doi = {10.48660/18080001},
            url = {https://pirsa.org/18080001},
            author = {Santiago, Jessica},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Relativistic temperature gradients},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {aug},
            note = {PIRSA:18080001 see, \url{https://scivideos.org/pirsa/18080001}}
          }

Jessica Santiago Victoria University of Wellington

Talk numberPIRSA:18080001
DOI10.48660/18080001
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Despite being broadly accepted nowadays, temperature gradients in thermal equilibrium states continue to cause confusion, since they naively seem to contradict the laws of classical thermodynamics. In this talk, we will explore the physical meaning behind this concept, specifically discussing the role played by the university of free fall. We will show that temperature, just like time, is an observer dependent quantity and discuss why gravity is the only force capable of causing equilibrium thermal gradients without violating any of the laws of thermodynamics. We will also demonstrate that significant care and delicacy are necessary when extending Tolman's results to distinct classes of heat baths in stationary spacetimes.