Twofold advance in the theoretical understanding of far-from-equilibrium properties of interacting nanostructures

Abstract

We calculate the full $I-V$ characteristics at vanishing temperature in the self-dual interacting resonant level model in two ways. The first uses careful time dependent DMRG with large number of states per block and a representation of the reservoirs as leads subjected to a chemical potential. The other is based on integrability in the continuum limit, and generalizes early work of Fendley Ludwig Saleur on the boundary sine-Gordon model. The two approaches are in excellent agreement, and uncover among other things a power law decay of the current at large voltages when $U>0$.

4 pages, 3 figures ; published version

References in corpus (4)

• Real time evolution using the density matrix renormalization group
• New method for studying steady states in quantum impurity problems: The interacting resonant level model
• Exact low temperature results for transport properties of the interacting resonant level model
• Strong enhancement of transport by interaction on contact links

Cited by in corpus (4)

• Real-time simulations of nonequilibrium transport in the single-impurity Anderson model
• Exactly Solved Model for an Electronic Mach-Zehnder Interferometer
• Transient dynamics of the nonequilibrium Majorana resonant level model
• Transport through quantum dots: A combined DMRG and cluster-embedding study