Simple condensation of interacting bosons

A. Casher*, M. Revzen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Bose condensation is characterized by a condition on the zero-frequency fourier component of the self-energy at the critical value of the chemical potential. This condition is used to show that under the action of an external linear perturbation the k = 0 mode goes over into a coherent state in the sense discussed by Glauber. Both the interparticle interaction and the external perturbation are treated exactly.

Original languageEnglish
Pages (from-to)441-454
Number of pages14
JournalAnnals of Physics
Issue number3
StatePublished - Jul 1968
Externally publishedYes


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