High order perturbation theory for spectral densities of multi-particle excitations: S = 1/2 two-leg Heisenberg ladder

European Physical Journal B

Volumn 36, Issue 4, 2003, Pages 525-544

  Knetter, C ^a   Schmidt, K P ^a   Uhrig, G S ^a  

^a UNIVERSITY OF COLOGNE   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ELEMENTARY EXCITATIONS; EXTRAPOLATION SCHEMES; HEISENBERG LADDER; HIGH ORDER; MODEL HAMILTONIANS; PARTICLE EXCITATIONS; PERTURBATION APPROACH; PERTURBATION THEORY; QUASIPARTICLES; TECHNICAL ASPECTS; UNITARY TRANSFORMATIONS;

APPROXIMATION THEORY; SPECTRAL DENSITY;

PERTURBATION TECHNIQUES;

EID: 2142808911     PISSN: 14346028     EISSN: 14346036     Source Type: Journal    
DOI: 10.1140/epjb/e2004-00008-2     Document Type: Article

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