A scalar two-level boson model to study the IBM phase diagram in the Casten triangle
classification
⚛️ nucl-th
cond-mat.stat-mech
keywords
modelbosonenergytwo-levelanalyticalbosonscastencheck
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We introduce a simple two-level boson model with the same energy surface as the Q-consistent Interacting Boson Model Hamiltonian. The model can be diagonalized for large number of bosons and the results used to check analytical finite-size corrections to the energy gap and the order parameter in the critical region. \
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