期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.086403
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资金
- Austrian Science Fund (FWF) [F4103-N13, J3361-N20, P24081-N16]
- Austrian Science Fund (FWF) [P 24081] Funding Source: researchfish
- Austrian Science Fund (FWF) [P24081] Funding Source: Austrian Science Fund (FWF)
We introduce a versatile method to compute electronic steady-state properties of strongly correlated extended quantum systems out of equilibrium. The approach is based on dynamical mean-field theory (DMFT), in which the original system is mapped onto an auxiliary nonequilibrium impurity problem imbedded in a Markovian environment. The steady-state Green's function of the auxiliary system is solved by full diagonalization of the corresponding Lindblad equation. The approach can be regarded as the nontrivial extension of the exact-diagonalization-based DMFT to the nonequilibrium case. As a first application, we consider an interacting Hubbard layer attached to two metallic leads and present results for the steady-state current and the nonequilibrium density of states. DOI: 10.1103/PhysRevLett.110.086403
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