is directly related to the Hamiltonian function in classical
physics, which will be defined in the first chapter. The ket-vector state and
its physical meaning will be introduced in . . . . .
This is not the book I thought I’d be writing. When, about a decade ago, I initiated the
discussions that led to our Computational Physics course, I thought we would teach mainly
physics in it. The . . . . .
Contents: introduction; Green-function approach to many-electron systems; properties of self-energy function in GW scheme; towards actual calculation of GW self-energy in the quasi-particle approximat . . . . .
Ever since its discovery, the notion of Berry phase has permeated through all branches of physics.
Over the last three decades, it was gradually realized that the Berry phase of the electronic wave
. . . . .