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Number of results
2008 | 113 | 1 | 395-398
Article title

Anomalous Self-Energy Features in the 2D Hubbard Model

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EN
Abstracts
EN
The electronic self-energy of the two-dimensional Hubbard model, computed in the non-crossing approximation within the composite operator method, is studied as a function of frequency as well as temperature at the Fermi surface, for a value of doping at which the pseudogap is already well developed. For values of momentum belonging to the phantom arc of the Fermi surface, both dependences show anomalous power law behavior in contrast to that expected from the Fermi liquid theory.
Keywords
EN
Contributors
author
  • Dipartimento di Fisica "E.R. Caianiello" - Unita CNISM di Salerno, Universita degli Studi di Salerno, 84081 Baronissi (SA), Italy
author
  • Dipartimento di Fisica "E.R. Caianiello" - Unita CNISM di Salerno, Universita degli Studi di Salerno, 84081 Baronissi (SA), Italy
References
  • 1. A. Avella, F. Mancini, Phys. Rev. B 75, 134518 (2007)
  • 2. J. Bosse, W. Götze, M. Lűcke, Phys. Rev. A 17, 434 (1978)
  • 3. F. Mancini, A. Avella, Adv. Phys. 53, 537 (2004)
  • 4. A. Avella, F. Mancini, V. Turkowski, Phys. Rev. B 67, 115123 (2003)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1097kz
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