Title: A multilayer multiconfiguration time-dependent Hartree study of the nonequilibrium Anderson impurity model at zero temperature,
Abstract: Quantum transport is studied for the nonequilibrium Anderson impurity model
at zero temperature employing the multilayer multiconfiguration time-dependent
Hartree theory within the second quantization representation (ML-MCTDH-SQR) of
Fock space. To adress both linear and nonlinear conductance in the Kondo
regime, two new techniques of the ML-MCTDH-SQR simulation methodology are
introduced: (i) the use of correlated initial states, which is achieved by
imaginary time propagation of the overall Hamiltonian at zero voltage and (ii)
the adoption of the logarithmic discretization of the electronic continuum.
Employing the improved methodology, the signature of the Kondo effect is
analyzed.