Nonequilibrium dynamics of the Anderson impurity model
نویسندگان
چکیده
منابع مشابه
ac response in the nonequilibrium Anderson impurity model.
The ac response of a single Anderson impurity coupled to two reservoirs with different chemical potentials is studied using an equation of motion approach. In the Kondo regime, we show that resonant behavior in the ac response is found in the low-frequency limit and the frequency of the ac field matches the chemical potential differences. The resonant behavior is a direct consequence of the “do...
متن کاملReal-time simulations of nonequilibrium transport in the single-impurity Anderson model
F. Heidrich-Meisner,1 A. E. Feiguin,2,3 and E. Dagotto4 1Institut für Theoretische Physik C, RWTH Aachen University, 52056 Aachen, Germany and JARA–Jülich Aachen Research Alliance, Forschungszentrum Jülich, 52425 Jülich, Germany 2Microsoft Project Q, University of California, Santa Barbara, California 93106, USA 3Condensed Matter Theory Center, University of Maryland, College Park, Maryland 207...
متن کاملSpectral Density of the Two-Impurity Anderson Model
We investigate static and dynamical ground-state properties of the twoimpurity Anderson model at half filling in the limit of vanishing impurity separation using the dynamical density-matrix renormalization group method. In the weakcoupling regime, we find a quantum phase transition as function of inter-impurity hopping driven by the charge degrees of freedom. For large values of the local Coul...
متن کاملNoncrossing approximation solution of the anisotropic Anderson impurity model
The thermodynamic and magnetic properties of a single impurity Anderson model that describes Ce in an environment with hexagonal symmetry is treated within the noncrossing approximation. It is found that the properties of the system at temperatures larger than the crystal field splitting are described by a Kondo temperature of the sixfold-degenerate spin-orbit multiplet and at low temperatures ...
متن کاملOn the Multi-channel Anderson Impurity Model of Uranium Compounds
In this talk we will present the solution of the two-channel Anderson impurity model, proposed in the context of the heavy fermion compound UBe13, and discuss briefly the more general multi-channel case. We will show results for the thermodynamics in the full range of temperature and fields and make the connection with the current experimental situation. 1. Models of Uranium ions During the las...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 1998
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.58.5649