2D Calogero Model in the Collective-Field Approach

Details 2D Calogero Model in the Collective-Field Approach 2D Calogero Model in the Collective-Field Approach

2004-03-19

arxiv.org/abs/hep-th/0403194v1

Phys.Lett. A334 (2005) 98-108

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1016/j.physleta.2004.11.001

We consider the large-N Calogero-Marchioro model in two dimensions in the Hamiltonian collective field approach based on the 1/N expansion. The Bogomol'nyi limit appears in the presence of the harmonic confinement. We investigate density fluctuations around the semiclassical uniform solution. The excitation spectrum splits into two branches depending on the value of the coupling constant. The ground state exhibits long-range order.

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