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2D Calogero Model in the Collective-Field Approach (CROSBI ID 109473)
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Bardek, Velimir ; Jurman, Danijel
2D Calogero Model in the Collective-Field Approach // Physics letters. A, 334 (2005), 2-3; 98-108-x
Podaci o odgovornosti
Bardek, Velimir ; Jurman, Danijel
engleski
2D Calogero Model in the Collective-Field Approach
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.
Calogero model; collective field
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