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Luttinger theorem for a spin-density-wave state

127   0   0.0 ( 0 )
 نشر من قبل ul
 تاريخ النشر 1997
  مجال البحث فيزياء
والبحث باللغة English
 تأليف B. L. Altshuler




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We obtained the analog of the Luttinger relation for a commensurate spin-density-wave state. We show that while the relation between the area of the occupied states and the density of particles gets modified in a simple and predictable way when the system becomes ordered, a perturbative consideration of the Luttinger theorem does not work due to the presence of an anomaly similar to the chiral anomaly in quantum electrodynamics.



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