An ideal Fermi gas under uniform gravity

We consider an ideal Fermi gas in a container subject to a uniform gravitational field at absolute zero temperature. Under a semiclassical approximation, we examine the density profile of the particles and derive an expression for the chemical potential. A critical value of the chemical potential separates the weak- and strong-gravity regimes, and the kinetic and potential energies of the Fermi gas are determined in both regimes.

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Publication Details

Journal
American Journal of Physics
Published
2026-04-22
DOI
https://doi.org/10.1119/5.0300463
Primary Topic
Black Holes and Theoretical Physics
Type
article
Field-Weighted Citation Impact
0.00
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article

An ideal Fermi gas under uniform gravity

Wittaya Kanchanapusakit, Pattarapon Tanalikhit
American Journal of Physics
Black Holes and Theoretical Physics
article

An ideal Fermi gas under uniform gravity

Wittaya Kanchanapusakit, Pattarapon Tanalikhit
article en

Abstract

We consider an ideal Fermi gas in a container subject to a uniform gravitational field at absolute zero temperature. Under a semiclassical approximation, we examine the density profile of the particles and derive an expression for the chemical potential. A critical value of the chemical potential separates the weak- and strong-gravity regimes, and the kinetic and potential energies of the Fermi gas are determined in both regimes.

American Journal of PhysicsVol. 94(5)
Korea Advanced Institute of Science and Technology (KR), King Mongkut's University of Technology Thonburi (TH)
Openalex Percentile: Top 7%
Black Holes and Theoretical Physics
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