Two exactly soluble models as a test of the hermitian operator method

M. Bouten; P. van Leuven; M. V. Mihailović; M. Rosina

doi:10.1016/0375-9474(74)90106-7

Two exactly soluble models as a test of the hermitian operator method

M. Bouten, P. van Leuven, M. V. Mihailović, M. Rosina

Research output › peer-review

Abstract

Two exactly soluble models, Lipkin's model and a pairing force model, are studied to test a previously introduced particle-hole method (the hermitian operator method) for the description of collective states. The results support the relevance of the particle-hole space for the calculation of certain excited states, as well as the adequacy of the approximations due to the hermitian operator method. The sensitivity of the results to the approximate input two-body density matrix is studied.

Original language	English
Pages (from-to)	173-182
Number of pages	10
Journal	Nuclear Physics, Section A
Volume	221
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(74)90106-7
State	Published - 11 Mar 1974

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(74)90106-7

Cite this

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title = "Two exactly soluble models as a test of the hermitian operator method",

abstract = "Two exactly soluble models, Lipkin's model and a pairing force model, are studied to test a previously introduced particle-hole method (the hermitian operator method) for the description of collective states. The results support the relevance of the particle-hole space for the calculation of certain excited states, as well as the adequacy of the approximations due to the hermitian operator method. The sensitivity of the results to the approximate input two-body density matrix is studied.",

author = "M. Bouten and {van Leuven}, P. and Mihailovi{\'c}, {M. V.} and M. Rosina",

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AB - Two exactly soluble models, Lipkin's model and a pairing force model, are studied to test a previously introduced particle-hole method (the hermitian operator method) for the description of collective states. The results support the relevance of the particle-hole space for the calculation of certain excited states, as well as the adequacy of the approximations due to the hermitian operator method. The sensitivity of the results to the approximate input two-body density matrix is studied.

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