Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Fabian Güttge"'
A hybrid approach to nonequilibrium dynamics of quantum impurity systems is presented. The numerical renormalization group serves as a means to generate a suitable low-energy Hamiltonian, allowing for an accurate evaluation of the real-time dynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db99635ab6fe5652fcff7cdfaef00473
http://arxiv.org/abs/1206.2186
http://arxiv.org/abs/1206.2186
The time-dependent numerical renormalization-group approach (TD-NRG), originally devised for tracking the real-time dynamics of quantum-impurity systems following a single quantum quench, is extended to multiple switching events. This generalization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e647e1974fcb27c0e6edd8de7bdadd1f
http://arxiv.org/abs/1201.3080
http://arxiv.org/abs/1201.3080
We discuss a particular source of error in the Numerical Renormalization Group (NRG) method for quantum impurity problems, which is related to a renormalization of impurity parameters due to the bath propagator. At any step of the NRG calculation, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::173e102aee6a6596f6256ba01cc1b909
http://arxiv.org/abs/0911.4490
http://arxiv.org/abs/0911.4490