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New results about the canonical transformation for boson operators (2012.05092v2)
Published 9 Dec 2020 in nucl-th
Abstract: The Bogoliubov transformation for a monopole boson induces an unitary transformation connecting the Fock spaces of initial and correlated boson-s. Here we provide a very simple method for deriving the analytical expression for the overlap matrix of the basis states generating the two boson spaces.
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