Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-10-29
Physics
High Energy Physics
High Energy Physics - Theory
13 pages, 5 figures, Wigner Proceedings for Conference Wigner Centenial Pecs, July 8-12, 2002
Scientific paper
10.1088/1464-4266/5/3/376
The structure and dynamics of an n-particle system are described with coupled nonlinear Heisenberg's commutator equations where the nonlinear terms are generated by the two-body interaction that excites the reference vacuum via particle-particle and particle-hole excitations. Nonperturbative solutions of the system are obtained with the use of dynamic linearization approximation and cluster transformation coefficients. The dynamic linearization approximation converts the commutator chain into an eigenvalue problem. The cluster coefficients factorize the matrix elements of the (n)-particles or particle-hole systems in terms of the matrix elements of the (n-1)-systems coupled to a particle-particle, particle-hole, and hole-hole boson. Group properties of the particle-particle, particle-hole, and hole-hole permutation groups simplify the calculation of these coefficients. The particle-particle vacuum-excitations generate superconductive diagrams in the dynamics of 3-quarks systems. Applications of the model to fermionic and bosonic systems are discussed.
Fritzsche Sephan
Kuehl Thomas
Liu Chun Lung
Noertershaeuser W.
Tomaselli M.
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