# Conical Intersections from Particle-Particle Random Phase and Tamm-Dancoff Approximations.

@article{Yang2016ConicalIF, title={Conical Intersections from Particle-Particle Random Phase and Tamm-Dancoff Approximations.}, author={Yang Yang and Lin Shen and Du Yao Zhang and Weitao Yang}, journal={The journal of physical chemistry letters}, year={2016}, volume={7 13}, pages={ 2407-11 } }

- Published in The journal of physical chemistry letters 2016
DOI:10.1021/acs.jpclett.6b00936

The particle-particle random phase approximation (pp-RPA) and the particle-particle Tamm-Dancoff approximation (pp-TDA) are applied to the challenging conical intersection problem. Because they describe the ground and excited states on the same footing and naturally take into account the interstate interaction, these particle-particle methods, especially the pp-TDA, can correctly predict the dimensionality of the conical intersection seam as well as describe the potential energy surface in the… CONTINUE READING