Publication:
In defense of negative temperature

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Issued Date

2016

Resource Type

Article

File Type

application/pdf

ISSN

24700045

DOI

10.1103/PhysRevE.93.032149

Other identifier(s)

2-s2.0-84963681276

Rights Holder(s)

Scopus

Bibliographic Citation

Physical Review E. Vol 93, No.3 (2016)

Suggested Citation

Poulter J. In defense of negative temperature. Physical Review E. Vol 93, No.3 (2016). doi:10.1103/PhysRevE.93.032149 Retrieved from: https://hdl.handle.net/20.500.14740/5507

Title

In defense of negative temperature

Author(s)

Poulter J.

Abstract

This pedagogical comment highlights three misconceptions concerning the usefulness of the concept of negative temperature, being derived from the usual, often termed Boltzmann, definition of entropy. First, both the Boltzmann and Gibbs entropies must obey the same thermodynamic consistency relation. Second, the Boltzmann entropy does obey the second law of thermodynamics. Third, there exists an integrating factor of the heat differential with both definitions of entropy. © 2016 American Physical Society.

Subject(s)

Lasers
 Masers
 Temperature
 Thermodynamics
 Boltzmann
 Boltzmann entropy
 Gibbs entropy
 Integrating factor
 Negative temperatures
 Second Law of Thermodynamics
 Thermodynamic consistency
 Entropy

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URI

https://hdl.handle.net/20.500.14740/5507

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Scopus: Year 1983-2021

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