Symmetries of the similarity renormalization group for nuclear forces

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Artigo
Data de publicação
2012
Periódico
Physical Review C - Nuclear Physics
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19
Autores
Timoteo V.S.
Szpigel S.
Ruiz Arriola E.
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We analyze the role played by long-distance symmetries within the context of the similarity renormalization group (SRG) approach, which is based on phase-shift-preserving continuous unitary transformations that evolve Hamiltonians with a cutoff on energy differences. We find that there is a SRG cutoff for which almost perfect fulfillment of Wigner symmetry is found. We discuss the possible consequences of such a finding. © 2012 American Physical Society.
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