papers
Publications (13)
cond-mat.mtrl-sci2019
van der Waals forces stabilize low-energy polymorphism in B2O3: Implications for the crystallization anomaly
Guillaume Ferlat, Maria Hellgren, François-Xavier Coudert +3
physics.chem-ph2013
Bond Breaking and Bond Formation: How Electron Correlation is Captured in Many-Body Perturbation Theory and Density-Functional Theory
Fabio Caruso, Daniel R. Rohr, Maria Hellgren +4
cond-mat.str-el2016
Molecular bonding with the RPAx: from weak dispersion forces to strong correlation
Nicola Colonna, Maria Hellgren, Stefano de Gironcoli
cond-mat.mes-hall2009
Exact-exchange kernel of time-dependent density functional theory: Frequency dependence and photoabsorption spectra of atoms
Maria Hellgren, Ulf von Barth
cond-mat.mes-hall2009
Linear density response function within the time-dependent exact-exchange approximation
Maria Hellgren, Ulf von Barth
cond-mat.str-el2018
Local vertex corrections from exchange-correlation kernels with a discontinuity
Maria Hellgren
cond-mat.mtrl-sci2017
Critical role of the exchange interaction for the electronic structure and charge-density-wave formation in TiSe2
Maria Hellgren, Jacopo Baima, Raffaello Bianco +3
physics.chem-ph2014
Derivative discontinuity and exchange-correlation potential of meta-GGAs in density-functional theory
F. G. Eich, Maria Hellgren
cond-mat.mes-hall2018
Exciton-Peierls mechanism and universal many-body gaps in carbon nanotubes
Maria Hellgren, Jacopo Baima, Anissa Acheche
cond-mat.mes-hall2009
Correlation energy functional and potential from time-dependent exact-exchange theory
Maria Hellgren, Ulf von Barth
cond-mat.mtrl-sci2018
Beyond the random phase approximation with a local exchange vertex
Maria Hellgren, Nicola Colonna, Stefano de Gironcoli
cond-mat.str-el2014
Correlation energy within exact-exchange ACFD theory: systematic development and simple approximations
Nicola Colonna, Maria Hellgren, Stefano de Gironcoli
cond-mat.str-el2015
Static correlation and electron localization in molecular dimers from the self-consistent RPA and GW approximation
Maria Hellgren, Fabio Caruso, Daniel R. Rohr +4