Pairing correlations and eigenvalues of two-body density matrix in atomic nuclei
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DOI: 10.1016/j.aop.2019.168061
Abstract: The quantum phases of superconductivity and superfluidity are characterised mathematically by the Yang concept of Off-Diagonal Long Range Order (ODLRO), related to the existence of a large eigenvalue of the density matrix. We analyse how… read more here.
Keywords: density; atomic nuclei; density matrix; two body ... See more keywords
Precise Mass Calculations for Atomic Nuclei of Isospin Tz = 51/2, 26, 53/2, 55/2, 28, and 57/2 with Restored Spin-Isospin SU(4) Symmetry
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Atomic Nuclei"
DOI: 10.1134/s106377881902011x
Abstract: Via simulating the contribution of spin-orbit interaction to nuclear masses by orthogonal Chebyshev polynomials, the mass excesses are calculated for a group of atomic nuclei characterized by the isospins of Tz = 51/2, 26, 53/2,… read more here.
Keywords: spin isospin; isospin; isospin symmetry; atomic nuclei ... See more keywords
The Proxy-SU(3) Symmetry in Atomic Nuclei
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DOI: 10.3390/sym15010169
Abstract: The microscopic origins and the current predictions of the proxy-SU(3) symmetry model of atomic nuclei were reviewed. Beginning with experimental evidence for the special roles played by nucleon pairs with maximal spatial overlap, the proxy-SU(3)… read more here.
Keywords: atomic nuclei; proxy symmetry; symmetry atomic; model ... See more keywords
On the Logical Structure of Composite Symmetries in Atomic Nuclei
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DOI: 10.3390/sym15020371
Abstract: This investigation involves composite symmetries, which connect different components of atomic nuclei. In particular, supersymmetry (SUSY) connects boson and fermion sectors, and multiconfigurational symmetry (MUSY) bridges different configurations, such as shell, quartet, or cluster configurations.… read more here.
Keywords: symmetries atomic; atomic nuclei; logical structure; structure composite ... See more keywords