NDLI: On the inertia of heat

Content Provider	Springer Nature Link
Author	Smerlak, M.
Copyright Year	2012
Abstract	Does heat have inertia? This question is at the core of a long-standing controversy on Eckart's dissipative relativistic hydrodynamics. Here I show that the troublesome inertial term in Eckart’s heat flux arises only if one insists on defining thermal diffusivity as a spacetime constant. I argue that this is not the most natural definition, and that all confusion disappears if one considers, instead, the space-dependent comoving diffusivity, in line with the fact that, in the presence of gravity, space is an inhomogeneous medium.
Starting Page	1
Ending Page	4
Page Count	4
File Format	PDF
Journal	The European Physical Journal Plus
Volume Number	127
Issue Number	7
e-ISSN	21905444
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-07-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Atomic, Molecular, Optical and Plasma Physics Statistical Physics, Dynamical Systems and Complexity Theoretical, Mathematical and Computational Physics Condensed Matter Physics Applied and Technical Physics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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On the inertia of heat