A note on the momentum distribution function for an electron gas

H. Yasuhara and Y. Kawazoe

Physica A: Statistical Mechanics and its Applications, 1976, vol. 85, issue 2, 416-424

Abstract: The one-electron momentum distribution function 〈akσ†akσ〉 for an electron gas is investigated by a diagrammatic analysis of perturbation theory. It is shown that 〈akσ†akσ〉 has the following exact asymptotic form for large k (k ⪢ pF; pF, the Fermi momentum): 〈akσ†akσ〉 = 49(αrsπ)2×(pF8k8) g⇅(0) + ⋯, where g⇅(0) is the zero-distance value of the spin-up-spin-down pair correlation function. The physical implications of the above asymptotic form are discussed.

Date: 1976
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:85:y:1976:i:2:p:416-424

DOI: 10.1016/0378-4371(76)90060-1

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