M. Vanzini
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View article: Dynamical Hubbard approach to correlated materials: the case of transition-metal monoxides
Dynamical Hubbard approach to correlated materials: the case of transition-metal monoxides Open
Electronic correlations beyond static mean-field theories are of fundamental importance in describing the properties of complex materials - such as transition-metal oxides - where the low-energy physics is driven by localized d or f electr…
View article: Towards a minimal description of dynamical correlation in metals
Towards a minimal description of dynamical correlation in metals Open
Dynamical correlations and non-local contributions beyond static mean-field theories are of fundamental importance for describing the electronic structure of correlated metals. Their effects are usually described with many-body approaches …
View article: Unraveling intrinsic correlation effects with angle-resolved photoemission spectroscopy
Unraveling intrinsic correlation effects with angle-resolved photoemission spectroscopy Open
Significance Photoemission spectra reflect the many-body electronic structure of materials. The main peaks whose energies vary as a function of angle-resolved momentum usually correspond to the band structure. Replicas of these peaks, call…
View article: Design of auxiliary systems for spectroscopy
Design of auxiliary systems for spectroscopy Open
In this contribution, we advocate the possibility of designing auxiliary systems with effective potentials or kernels that target only the specific spectral properties of interest and are simpler than the self-energy of many-body perturbat…
View article: Recycling knowledge to explore materials: a connector theory approach
Recycling knowledge to explore materials: a connector theory approach Open
Computational materials design often profits from the fact that a part of the complicated interaction contributions is not calculated for the real material, but replaced by results of models such as the homogeneous electron gas. We turn th…
View article: Re-using model results to determine materials properties: connector theory approach
Re-using model results to determine materials properties: connector theory approach Open
Computational materials design often profits from the fact that some complicated contributions are not calculated for the real material, but replaced by results of models. We turn this approximation into a very general and in principle exa…
View article: Dispersing and non-dispersing satellites in the photoemission spectra of aluminum
Dispersing and non-dispersing satellites in the photoemission spectra of aluminum Open
Satellites in electronic spectra are pure many-body effects, and their study has been of increasing interest in both experiment and theory. The presence of satellites due to plasmon excitations can be understood with simple models of elect…
View article: Dynamical local connector approximation for electron addition and removal spectra
Dynamical local connector approximation for electron addition and removal spectra Open
Realistic calculations of electron addition and removal spectra rely most often on Green's functions and complex, non-local self-energies. We introduce a shortcut to obtain the spectral function directly from a local and frequency-dependen…