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28 March 2024
 
  » arxiv » cond-mat/9705049

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Is the pi-particle responsible for the 41 meV peak in YBa_2Cu_3O_7?
Martin Greiter ;
Date 6 May 1997
Journal Phys. Rev. Lett. 79, 4898 (1997)
Subject Superconductivity | cond-mat.supr-con
AffiliationStanford University
AbstractIt is argued that there is no low-energy resonance associated with the pi-operators introduced by Demler and Zhang. This implies that the Hubbard model does not possess an approximate SO(5) symmetry generated by these operators. Recent finite-size studies are re-interpreted accordingly.
Source arXiv, cond-mat/9705049
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