TY - JOUR
T1 - Two-site Hubbard molecule with a spinless electron-positron pair
AU - Cossu, Fabrizio
AU - Schuster, Cosima
AU - Schwingenschlögl, Udo
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2012/12/20
Y1 - 2012/12/20
N2 - We determine the eigenvalues of the two-site Hubbard molecule with one electron and one positron to describe the characteristics of electron-positron interactions in solids. While the effect of hopping is, in general, opposite to the effect of on-site interaction, we find a complex scenario for the electron-positron pair with a non-vanishing potential drop. We give analytical solutions and discuss the combined effects of the model parameters.
AB - We determine the eigenvalues of the two-site Hubbard molecule with one electron and one positron to describe the characteristics of electron-positron interactions in solids. While the effect of hopping is, in general, opposite to the effect of on-site interaction, we find a complex scenario for the electron-positron pair with a non-vanishing potential drop. We give analytical solutions and discuss the combined effects of the model parameters.
UR - http://hdl.handle.net/10754/315803
UR - http://scitation.aip.org/content/aip/journal/jap/112/12/10.1063/1.4769741
UR - http://www.scopus.com/inward/record.url?scp=84886839156&partnerID=8YFLogxK
U2 - 10.1063/1.4769741
DO - 10.1063/1.4769741
M3 - Article
SN - 0021-8979
VL - 112
SP - 123706
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 12
ER -