"umklapp" meaning in English

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      "expansion": "German umklappen (“fold over”)",
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  "etymology_text": "From German umklappen (“fold over”).",
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          "ref": "2006, Ghassan George Batrouni, Effective Models for Low-Dimensional Strongly Correlated Systems:",
          "text": "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.",
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          "ref": "2015, Yi Ling, Peng Liu, Chao Niu, Jian-Pin Wu, “Building a doped Mott system by holography”, in arXiv:",
          "text": "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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        "Pertaining to the transformation of a wave vector to another Brillouin zone as a result of a scattering process."
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        "(physics) Pertaining to the transformation of a wave vector to another Brillouin zone as a result of a scattering process."
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        "umklapp scattering"
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  "word": "umklapp"
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