Abstract
A recent theorem states that for quantum manybody systems with short-range interactions the following property holds: the single-particle overlap functions, spectroscopic factors and separation energies of bound eigenstates of the (A−1)-particle system are fully determined by the one-body density matrix of theA-particle system in its ground state. We confirm this property, by explicit construction, for the case of a schematic, exactly solvable system.
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Communicated by X. Campi
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Van Neck, D., Dieperink, A.E.L. & Waroquier, M. Single-particle properties in an exactly solvableA-body system. Z. Physik A — Hadrons and Nuclei 355, 107–109 (1996). https://doi.org/10.1007/BF02769671
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DOI: https://doi.org/10.1007/BF02769671