Efficient O(N2) approach to solve the Bethe-Salpeter equation for excitonic bound states
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چکیده
Excitonic effects in optical spectra and electron-hole pair excitations are described by solutions of the Bethe-Salpeter equation BSE that accounts for the Coulomb interaction of excited electron-hole pairs. Although for the computation of excitonic optical spectra in an extended frequency range efficient methods are available, the determination and analysis of individual exciton states still requires the diagonalization of the
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تاریخ انتشار 2008