TY - JOUR
T1 - The renormalized superperturbation theory (rSPT) approach to the Anderson model in and out of equilibrium
AU - Munoz, Enrique
AU - Zamani, Farzaneh
AU - Merker, Lukas
AU - Costi, Theo
AU - Kirchner, Stefan
PY - 2017/4/6
Y1 - 2017/4/6
N2 - The properties of current-carrying steady states of strongly correlated systems away from the linear-response regime are of topical interest. In this article, we review the renormalized perturbation theory, or renormalized SPT of reference [1] for the Anderson model. We present an extension to higher orders and compare the higher-order results with NRG calculations. Finally, we elucidate the role of Ward identities in calculating out-of-equilibrium properties and address claims made in the literature.
AB - The properties of current-carrying steady states of strongly correlated systems away from the linear-response regime are of topical interest. In this article, we review the renormalized perturbation theory, or renormalized SPT of reference [1] for the Anderson model. We present an extension to higher orders and compare the higher-order results with NRG calculations. Finally, we elucidate the role of Ward identities in calculating out-of-equilibrium properties and address claims made in the literature.
UR - http://www.scopus.com/inward/record.url?scp=85018266121&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/807/9/092001
DO - 10.1088/1742-6596/807/9/092001
M3 - Conference article
AN - SCOPUS:85018266121
SN - 1742-6588
VL - 807
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 9
M1 - 092001
T2 - 18th International Conference on Strongly Correlated Electron Systems, SCES 2016
Y2 - 9 May 2016 through 13 May 2016
ER -