BEC for a coupled two-type hard core bosons model
نویسندگان
چکیده
منابع مشابه
BEC for a Coupled Two - type Hard Core Bosons Model
We study a solvable model of two hard core Bose particles. A complete analysis is given of its equilibrium states including the proof of existence of Bose-Einstein condensation. The plasmon frequencies and the quantum normal modes corresponding to these frequencies are rigorously constructed. In particular we show a twofold degeneracy of these frequencies. We show that all this results from spo...
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We have considered the BCS-BEC crossover at T = 0 in the framework of a lattice fermion model (the extended Hubbard model). We have analyzed the case of on-site hard core repulsion (U = ∞) and intersite attraction (W < 0) in a 3D system with extended s-wave pairing symmetry. The mechanisms of density-driven and attraction-strength-driven crossover have been analyzed. We have obtained the ground...
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2001
ISSN: 0378-4371
DOI: 10.1016/s0378-4371(00)00614-2