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Theory of interacting bosons without anomalous propagators

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  • Stolz, H.

Abstract

A self-consistent theory of an interacting many-boson system is presented in the framework of the formalism of thermodynamic Green's functions without introducing anomalous propagators referring to the concept of a restricted average or any other symmetry-breaking assumption. Depending on the interaction, the theory comprises both phenomena of Bose-Einstein condensation and of boson pairing without a macroscopic occupation of the zero-momentum single-particle state. The results are discussed with reference to the problem of Bose-Einstein condensation of 4He II and to the phenomenon of exciton condensation and exciton pairing in highly excited semiconductors.

Suggested Citation

  • Stolz, H., 1977. "Theory of interacting bosons without anomalous propagators," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 86(1), pages 111-129.
    • Handle: RePEc:eee:phsmap:v:86:y:1977:i:1:p:111-129
    DOI: 10.1016/0378-4371(77)90065-6
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    1. R.K. Wilkinson & E.M. Sigsworth, 1972. "Attitudes To the Housing Environment: an Analysis of Private and Local Authority Households in Batley, Leeds and York," Urban Studies, Urban Studies Journal Limited, vol. 9(2), pages 193-214, June.
    2. Johansson Albin, 1958. "Anliegen der Genossenschaftspraxis an die Wissenschaft," Zeitschrift für das gesamte Genossenschaftswesen, De Gruyter, vol. 8(1), pages 42-55, September.
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