2003/07/16 by Tarek Khalil, J. Richert, Jean Richert
Physics and Astronomy · #Advanced Chemical Physics Studies #Cold Atom Physics and Bose-Einstein Condensates #Quantum and electron transport phenomena #cond-mat.str-el #nucl-th #quant-ph
paper · pdf · doi:10.1088/0305-4470/37/17/014
published as J.Phys.A37:4851-4860,2004 · 4 pages, 1 table
arxiv created 2003/07/16 · openalex publication_date 2004/04/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
The energies of low-lying bound states of a microscopic quantum many-body system of particles can be worked out in a reduced Hilbert space. We present here and test a specific non-perturbative algorithm. We also show that real exceptional points which may be present in the spectrum can be identified as fixed points of coupling constants in the truncation procedure.