canonical symmetries 1many-body multipoles 1particle-hole transformation 1particle-number gauge 1selection rules 1symmetry classification 1
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2 papers
cond-mat.str-el2026
Sixteenfold Classification of Many-Body Multipoles from Rotation-Compatible Canonical Symmetries
Shingo Kuniyoshi, Rikuto Oiwa, Satoru Hayami
The paper introduces a sixteenfold classification scheme for many‑body electronic multipole operators using rotation‑compatible canonical symmetries, distinguishing operators by pa…
cond-mat.str-el2026★ 1 cited
Theory of Many-Body Multipole Operators in Single-Centered Electron Systems: Two-Body Toroidal Monopoles in Spinless Orbitals
Shingo Kuniyoshi, Rikuto Oiwa, Satoru Hayami
One-body multipole operators are defined as irreducible representations of rotational symmetry together with spatial-inversion and time-reversal symmetries, providing a systematic…