Wang-Landau sampling for quantum systems: algorithms to overcome tunneling problems and calculate the free energy

Details Wang-Landau sampling for quantum systems: algorithms to overcome tunneling problems and calculate the free energy Wang-Landau sampling for quantum systems: algorithms to overcome tunneling problems and calculate the free energy

2002-07-04

arxiv.org/abs/cond-mat/0207138v3

Phys. Rev. Lett. 90, 120201 (2003).

Physics

Condensed Matter

Statistical Mechanics

Added a plot showing the efficiency at first order phase transitions

Scientific paper

10.1103/PhysRevLett.90.120201

We present a generalization of the classical Wang-Landau algorithm [Phys. Rev. Lett. 86, 2050 (2001)] to quantum systems. The algorithm proceeds by stochastically evaluating the coefficients of a high temperature series expansion or a finite temperature perturbation expansion to arbitrary order. Similar to their classical counterpart, the algorithms are efficient at thermal and quantum phase transitions, greatly reducing the tunneling problem at first order phase transitions, and allow the direct calculation of the free energy and entropy.

Affiliated with

Also associated with

No associations

Rating

Wang-Landau sampling for quantum systems: algorithms to overcome tunneling problems and calculate the free energy 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 Wang-Landau sampling for quantum systems: algorithms to overcome tunneling problems and calculate the free energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wang-Landau sampling for quantum systems: algorithms to overcome tunneling problems and calculate the free energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-154846