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cond-mat.mes-hall2020
Biexciton State Energies from Many-Body Perturbation Theory Based on Density Functional Theory Simulation
Deyan Mihaylov, Andrei Kryjevski
We develop a method for computing self-energy of a biexciton state in a semiconductor nanostructure using many-body perturbation theory (MBPT) based on the density functional theor…
cond-mat.str-el2020★ 1 cited
Electronic structure of semiconductor nanoparticles from stochastic evaluation of imaginary-time path integral
Andrei Kryjevski, Thomas Luu, Valentin Karasiev
In the Kohn-Sham orbital basis imaginary-time path integral for electrons in a semiconductor nanoparticle has a mild Fermion sign problem and is amenable to evaluation by the stand…