Dynamical Mean Field Theory of Optical Third Harmonic Generation(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
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We formulate the third harmonic generation (THG) within the dynamical mean field theory (DMFT) approximation of the Hubbard model. In the limit of large dimensions, where DMFT becomes exact, the vertex corrections to current vertices are identically zero. Hence, the calculation of the THG spectrum reduces to a time-ordered convolution, followed by an appropriate analytic continuation. We present a typical THG spectrum of the Hubbard model obtained by this method. Within our DMFT calculation, we observe a nontrivial approximate scaling function describing the THG spectra in all Mott insulators, independent of the gap magnitude.
- 社団法人日本物理学会の論文
- 2006-08-15
著者
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遠山 貴己
京都大学基礎物理学研究所
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Jafari S.
Institute For Materials Research Tohoku University:department Of Physics Isfahan University Of Techn
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Tohyama Takami
Institute For Materials Research Tohoku University
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MAEKAWA Sadamichi
Institute for Materials Research,Tohoku University
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Maekawa Sadamichi
Institute For Materials Research Tohoku University:crest Japan Science And Technology Agency
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Maekawa Sadamichi
Institute For Materials Research Tohoku University
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Maekawa Sadamichi
Institute For Iron And Other Metals Tohoku University
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