umklapp

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English

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Wikipedia

Etymology

From German umklappen (“fold over”).

Adjective

umklapp (not comparable)

  1. (physics) Pertaining to the transformation of a wave vector to another Brillouin zone as a result of a scattering process.
    • 2006, Ghassan George Batrouni, Effective Models for Low-Dimensional Strongly Correlated Systems:
      They denoted this surface as the umklapp surface because of the importance of (n, n) umklapp scattering across this surface that occurs in the AF and the d-wave pairing channels.
    • 2015, Yi Ling, Peng Liu, Chao Niu, Jian-Pin Wu, “Building a doped Mott system by holography”, in arXiv‎:
      It implies that our model is dual to a doped Mott system in one dimension where umklapp scattering is frozen at zero temperature.
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