Work Storage in States of Apparent Negative Thermodynamic Temperature

Simple item page
dc.contributor.authorStruchtrup, Henning
dc.date.accessioned2018-06-27T20:02:10Z
dc.date.available2018-06-27T20:02:10Z
dc.date.copyright2018en_US
dc.date.issued2018-06-27
dc.description.abstractInverted quantum states provide a challenge to classical thermodynamics, since they appear to contradict the classical formulation of the second law of thermodynamics. Ramsey interpreted these states as stable equilibrium states of negative thermodynamic temperature, and added a provision to allow these states to the Kelvin-Planck statement of the second law [N. F. Ramsey, Phys. Rev. 103, 20 (1956)]. Since then, Ramsey’s interpretation has prevailed in the literature. Here, we present an alternative option to accommodate inverted states within thermodynamics, which strictly enforces the originalKelvin-Planck statement of the second law, and reconciles inverted states and the second law by interpreting the former as unstable states, for which no temperature—positive or negative—can be defined. Specifically, we recognize inverted quantum states as temperature-unstable states, for which all processes are in agreement with the original Kelvin-Planck statement of the second law, and positive thermodynamic temperatures in stable equilibrium states. These temperature-unstable states can only be created by work done to the system, which is stored as energy in the unstable states, and can be released as work again, just as in a battery or a spring.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipSupport from the National Science and Engineering Research Council of Canada (NSERC) is gratefully acknowledged.en_US
dc.identifier.urihttp://hdl.handle.net/1828/9534
dc.identifier.urihttps://dx.doi.org/10.1103/PhysRevLett.120.250602
dc.language.isoenen_US
dc.subjectTemperatureen_US
dc.subjectThermodynamicsen_US
dc.subjectNon-equilibriumen_US
dc.titleWork Storage in States of Apparent Negative Thermodynamic Temperatureen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Struchtrup_Henning_Physical_Review_Letters_2018.pdf
Size:
154.41 KB
Format:
Adobe Portable Document Format
Description:
main article
Download
Thumbnail Image
Name:
Struchtrup_Henning_Physical_Review_Letters_2018_supplemental.pdf
Size:
380.57 KB
Format:
Adobe Portable Document Format
Description:
supplemental material
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Faculty Publications (Engineering and Computer Science)
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.