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Article Dans Une Revue Physical Review Letters Année : 1997

Infrared Behavior of Interacting Bosons at Zero Temperature

Résumé

We exploit the symmetries associated with the stability of the superfluid phase to solve the long-standing problem of interacting bosons in the presence of a condensate at zero temperature. Implementation of these symmetries poses strong conditions on the renormalizations that heal the singularities of perturbation theory. The renormalized theory gives: For d>3 the Bogoliubov quasiparticles as an exact result; for 1

Dates et versions

hal-01517526 , version 1 (03-05-2017)

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Citer

C. Castellani, C. Di Castro, F. Pistolesi, G. C. Strinati. Infrared Behavior of Interacting Bosons at Zero Temperature. Physical Review Letters, 1997, 78 (9), pp.1612 - 1615. ⟨10.1103/PhysRevLett.78.1612⟩. ⟨hal-01517526⟩
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