@article{193, keywords = {paper, theory}, author = {Hannes Hübener}, title = {Second-order response Bethe-Salpeter equation}, abstract = {A Bethe-Salpeter equation for the three-particle correlation function is derived, representing a second-order response generalization of the usual Bethe-Salpeter equation. The equation can be solved formally, giving the three-particle correlation function in terms of the two-particle correlation function and many-body interaction kernels. The similarity to second-order response time-dependent density-functional theory can be used to improve the understanding of the higher-order exchange and correlation kernels of this theory. An exact expression for such a kernel is derived.}, year = {2011}, journal = {Phys. Rev. A}, volume = {83}, number = {6}, pages = {062122}, month = {Jun}, publisher = {American Physical Society}, url = {http://pra.aps.org/abstract/PRA/v83/i6/e062122}, doi = {10.1103/PhysRevA.83.062122}, }