First-principles quantum dynamics for fermions: Application to molecular dissociation
Abstract
We demonstrate that the quantum dynamics of a many-body Fermi-Bose system can be simulated using a Gaussian phase-space representation method. In particular, we consider the application of the mixed fermion-boson model to ultracold quantum gases and simulate the dynamics of dissociation of a Bose-Einstein condensate of bosonic dimers into pairs of fermionic atoms. We quantify deviations of atom-atom pair correlations from Wick's factorization scheme, and show that atom-molecule and molecule-molecule correlations grow with time, in clear departures from pairing mean-field theories. As a first-principles approach, the method provides benchmarking of approximate approaches and can be used to validate dynamical probes for characterizing strongly correlated phases of fermionic systems.
Cite
@article{arxiv.0910.4440,
title = {First-principles quantum dynamics for fermions: Application to molecular dissociation},
author = {M. Ogren and K. V. Kheruntsyan and J. F. Corney},
journal= {arXiv preprint arXiv:0910.4440},
year = {2015}
}
Comments
Final published version