Journal article

Ward identity and optical conductivity sum rule in the d-density wave state

  • Benfatto, Larra Theoretical Physics Group, Physics Department, University of Fribourg, Switzerland
  • Sharapov, S. G. Istituto Nazionale per la Fisica della Materia (INFM), Institute for Scientific Interchange, Torino, Italy
  • Andrenacci, N. Institut de Physique, Université de Neuchâtel, Switzerland
  • Beck, Hans Institut de Physique, Université de Neuchâtel, Switzerland
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    22.03.2005
Published in:
  • Physical Review B. - 2005, vol. 71, no. 104511
English We consider the role of the Ward identity in dealing with the transport properties of an interacting system forming a d-wave modulated charge-density wave or staggered flux phase. In particular, we address this issue from the point of view of the restricted optical-conductivity sum rule. Our aim is to provide a controlled approximation for the current-current correlation function which allows... Show more…
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/300016