Doublon formation by ions impacting a strongly correlated finite lattice system
Abstract
Strongly correlated systems of fermions have a number of exciting collective properties. Among them, the creation of a lattice that is occupied by doublons, i.e. two quantum particles with opposite spins, offers interesting electronic properties. In the past a variety of methods have been proposed to control doublon formation, both, spatially and temporally. Here, a novel mechanism is proposed and verified by exact diagonalization and nonequilibrium Green functions simulations---fermionic doublon creation by the impact of energetic ions. We report the formation of a nonequilibrium steady state with homogeneous doublon distribution. The effect should be observable in strongly correlated solids in contact with a high-pressure plasma and in fermionic atoms in optical lattices.
Keywords
Cite
@article{arxiv.1801.05267,
title = {Doublon formation by ions impacting a strongly correlated finite lattice system},
author = {Karsten Balzer and Maximilian Rodriguez Rasmussen and Niclas Schlünzen and Jan-Philip Joost and Michael Bonitz},
journal= {arXiv preprint arXiv:1801.05267},
year = {2019}
}