On the combined use of GW approximation and cumulant expansion in the calculations of quasiparticle spectra: The paradigm of Si valence bands
نویسندگان
چکیده
Branko Gumhalter,1,* Vjekoslav Kovač,2 Fabio Caruso,3 Henry Lambert,3 and Feliciano Giustino3 1Institute of Physics, HR-10000 Zagreb, Croatia 2Department of Mathematics, University of Zagreb, HR-10000 Zagreb, Croatia 3Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom (Received 15 February 2016; revised manuscript received 27 April 2016; published 5 July 2016)
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