Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2009-02-18
Phys. Rev. B 79, 165103 (2009)
Physics
Condensed Matter
Other Condensed Matter
12 pages. Minor revision, reference added
Scientific paper
10.1103/PhysRevB.79.165103
A Gaussian operator representation for the many body density matrix of fermionic systems, developed by Corney and Drummond [Phys. Rev. Lett, v93, 260401 (2004)], is used to derive approximate decoupling schemes for their dynamics. In this approach the reduced single electron density matrix elements serve as stochastic variables which satisfy an exact Fokker-Planck equation. The number of variables scales as ~N^2 rather than ~exp(N) with the basis set size, and the time dependent Hartree Fock approximation (TDHF) is recovered in the "classical" limit. An approximate closed set of equations of motion for the one and two-particle reduced density matrices, provides a direct generalization of the TDHF.
Mukamel Shaul
Rahav Saar
No associations
LandOfFree
Gaussian phase-space representation of Fermion dynamics; Beyond the time-dependent-Hartree-Fock approximation 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 Gaussian phase-space representation of Fermion dynamics; Beyond the time-dependent-Hartree-Fock approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gaussian phase-space representation of Fermion dynamics; Beyond the time-dependent-Hartree-Fock approximation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-129146