Dynamical Mean Field Theory of Optical Third Harmonic Generation

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Abstract

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 <I>scaling</I> function describing the THG spectra in all Mott insulators, independent of the gap magnitude.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 75(8), "83706-1"-"83706-4", 2006-08-15

    The Physical Society of Japan (JPS)

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  • Nonlinear Optical Response of SDW Insulators

    JAFARI S. Akbar , TOHYAMA Takami , MAEKAWA Sadamichi

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    J-STAGE  References (19) Cited by (2)

Codes

  • NII Article ID (NAID)
    110004799193
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    00319015
  • NDL Article ID
    8019756
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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