Analytic Time Evolution, Random Phase Approximation, and Green Functions for Matrix Product States

Details Analytic Time Evolution, Random Phase Approximation, and Green Functions for Matrix Product States Analytic Time Evolution, Random Phase Approximation, and Green Functions for Matrix Product States

2011-03-10

arxiv.org/abs/1103.2155v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

Drawing on similarities in Hartree-Fock theory and the theory of matrix product states (MPS), we explore extensions to time evolution, response theory, and Green functions. We derive analytic equations of motion for MPS from the least action principle, which describe optimal evolution in the small time-step limit. We further show how linearized equations of motion yield a MPS random phase approximation, from which one obtains response functions and excitations. Finally we analyze the structure of site-based Green functions associated with MPS, as well as the structure of correlations introduced via the fluctuation-dissipation theorem.

Affiliated with

Also associated with

No associations

Rating

Analytic Time Evolution, Random Phase Approximation, and Green Functions for Matrix Product States does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Analytic Time Evolution, Random Phase Approximation, and Green Functions for Matrix Product States, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytic Time Evolution, Random Phase Approximation, and Green Functions for Matrix Product States will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-429529