Numerical renormalization group method for quantum impurity systems
R Bulla, TA Costi, T Pruschke - Reviews of Modern Physics, 2008 - APS
In the early 1970s, Wilson developed the concept of a fully nonperturbative renormalization
group transformation. When applied to the Kondo problem, this numerical renormalization …
group transformation. When applied to the Kondo problem, this numerical renormalization …
Energy resolution and discretization artifacts in the numerical renormalization group
R Žitko, T Pruschke - Physical Review B—Condensed Matter and Materials …, 2009 - APS
We study the limits of the energy resolution that can be achieved in the calculations of
spectral functions of quantum impurity models using the numerical renormalization group …
spectral functions of quantum impurity models using the numerical renormalization group …
Density matrix embedding from broken symmetry lattice mean fields
Several variants of the recently proposed density matrix embedding theory (DMET)[G. Knizia
and G. KL. Chan, Phys. Rev. Lett. 109, 186404 (2012) PRLTAO 0031-9007 …
and G. KL. Chan, Phys. Rev. Lett. 109, 186404 (2012) PRLTAO 0031-9007 …
Variational matrix-product-state approach to quantum impurity models
We present a unified framework for renormalization group methods, including Wilson's
numerical renormalization group (NRG), and White's density-matrix renormalization group …
numerical renormalization group (NRG), and White's density-matrix renormalization group …
Nonequilibrium steady-state transport in quantum impurity models: A thermofield and quantum quench approach using matrix product states
The numerical renormalization group (NRG) is tailored to describe interacting impurity
models in equilibrium, but it faces limitations for steady-state nonequilibrium, arising, eg, due …
models in equilibrium, but it faces limitations for steady-state nonequilibrium, arising, eg, due …
Fano-Kondo effect in side-coupled double quantum dots at finite temperatures and the importance of two-stage Kondo screening
R Žitko - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We study the zero-bias conductance through the system of two quantum dots, one of which
is embedded directly between the source and drain electrodes, while the second dot is side …
is embedded directly between the source and drain electrodes, while the second dot is side …
Supercurrent in a double quantum dot
We demonstrate the Josephson effect in a serial double quantum dot defined in a nanowire
with epitaxial superconducting leads. The supercurrent stability diagram adopts a …
with epitaxial superconducting leads. The supercurrent stability diagram adopts a …
Manipulating non-abelian anyons in a chiral multichannel kondo model
Non-Abelian anyons are fractional excitations of gapped topological models believed to
describe certain topological superconductors or quantum Hall states. Here, we provide the …
describe certain topological superconductors or quantum Hall states. Here, we provide the …
Multiple-impurity Anderson model for quantum dots coupled in parallel
The system of several (N) quantum dots coupled in parallel to the same single-mode
conduction channel can be modeled as a single-channel N-impurity Anderson model. Using …
conduction channel can be modeled as a single-channel N-impurity Anderson model. Using …
Chebyshev expansion for impurity models using matrix product states
We improve a recently developed expansion technique for calculating real-frequency
spectral functions of any one-dimensional model with short-range interactions, by …
spectral functions of any one-dimensional model with short-range interactions, by …