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A quartet BCS-like theory
V. V. Baran, D. S. Delion
We introduce a BCS-like theory for the quartet correlations induced by the isovector pairing interaction. It is based on a coherent state of BCS type and, unlike usual mean field a…
Disentangling the pair and quartet condensates
V. V. Baran, D. S. Delion
We study the nontrivial interplay of the well known \emph{pairing} and the more complex \emph{quarteting} correlations in the particular case of atomic nuclei. Within the new…
Analytical approach for the Quartet Condensation Model
V. V. Baran, D. S. Delion
Within the Quartet Condensation Model (QCM), the isovector pairing correlations for nuclei are described with a very high accuracy by a condensate of -like quartets. The…
Unified description of pairing and quarteting correlations within the particle-hole-boson approach
V. V. Baran, D. S. Delion
We study the description of single-species and isovector pairing correlations in the framework of the projected-BCS (PBCS) and the Quartet Condensation Model (QCM) from a particle-…