High-order Time Expansion Path Integral Ground State

Details High-order Time Expansion Path Integral Ground State High-order Time Expansion Path Integral Ground State

2009-07-23

arxiv.org/abs/0907.3998v1

Physics

Condensed Matter

Other Condensed Matter

4 pages

Scientific paper

The feasibility of path integral Monte Carlo ground state calculations with very few beads using a high-order short-time Green's function expansion is discussed. An explicit expression of the evolution operator which provides dramatic enhancements in the quality of ground-state wave-functions is examined. The efficiency of the method makes possible to remove the trial wave function and thus obtain completely model-independent results still with a very small number of beads. If a single iteration of the method is used to improve a given model wave function, the result is invariably a shadow-type wave function, whose precise content is provided by the high-order algorithm employed.

Affiliated with

Also associated with

No associations

Rating

High-order Time Expansion Path Integral Ground State 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 High-order Time Expansion Path Integral Ground State, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-order Time Expansion Path Integral Ground State will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-354599