Refine my results

Influence of Fock exchange in combined many-body perturbation and dynamical mean field theory

Ayral, Thomas ; Biermann, Silke ; Werner, Philipp ; Boehnke, Lewin

In: Physical Review B, 2017, vol. 95, no. 24, p. 245130

In electronic systems with long-range Coulomb interaction, the nonlocal Fock- exchange term has a band-widening effect. While this effect is included in combined many-body perturbation theory and dynamical mean field theory (DMFT) schemes, it is not taken into account in standard extended DMFT (EDMFT) calculations. Here, we include this instantaneous term in both approaches and investigate its...

Mirage simulations of the massiv sample

Amram, P. ; Perret, V. ; Epinat, B. ; Bournaud, F. ; Contini, T. ; Divoy, C. ; Garilli, B. ; Kissler-Patig, M. ; Le Fevre, O. ; Lopez-Sanjuan, C. ; Moultaka, J. ; Pairo, L. ; Perez-Montero, E. ; Queyrel, J. ; Tasca, L. ; Tresse, L. ; Vergani, D.

In: Proceedings of the International Astronomical Union, 2014, vol. 10, no. S309, p. 298-298

The formation of disc galaxies in a ΛCDM universe

Agertz, Oscar ; Teyssier, Romain ; Moore, Ben

In: Monthly Notices of the Royal Astronomical Society, 2011, vol. 410, no. 2, p. 1391-1408

Cosmic shear systematics: software-hardware balance

Amara, A. ; Réfrégier, A. ; Paulin-Henriksson, S.

In: Monthly Notices of the Royal Astronomical Society, 2010, vol. 404, no. 2, p. 926-930

Fundamental differences between SPH and grid methods

Agertz, Oscar ; Moore, Ben ; Stadel, Joachim ; Potter, Doug ; Miniati, Francesco ; Read, Justin ; Mayer, Lucio ; Gawryszczak, Artur ; Kravtsov, Andrey ; Nordlund, Åke ; Pearce, Frazer ; Quilis, Vicent ; Rudd, Douglas ; Springel, Volker ; Stone, James ; Tasker, Elizabeth ; Teyssier, Romain ; Wadsley, James ; Walder, Rolf

In: Monthly Notices of the Royal Astronomical Society, 2007, vol. 380, no. 3, p. 963-978

Modelling the breakup of solid aggregates in turbulent flows

BÄBLER, MATTHÄUS U. ; MORBIDELLI, MASSIMO ; BAŁDYGA, JERZY

In: Journal of Fluid Mechanics, 2008, vol. 612, p. 261-289

Large-scale galactic turbulence: can self-gravity drive the observed H i velocity dispersions?

Agertz, Oscar ; Lake, George ; Teyssier, Romain ; Moore, Ben ; Mayer, Lucio ; Romeo, Alessandro B.

In: Monthly Notices of the Royal Astronomical Society, 2009, vol. 392, no. 1, p. 294-308

Corotation resonances for gravity waves and their impact on angular momentum transport in stellar interiors

Alvan, Lucie ; Mathis, Stéphane ; Decressin, Thibaut

In: Proceedings of the International Astronomical Union, 2013, vol. 9, no. S301, p. 377-378

Screening and nonlocal correlations in the extended Hubbard model from self-consistent combined GW and dynamical mean field theory

Ayral, Thomas ; Biermann, Silke ; Werner, Philipp

In: Physical Review B, 2013, vol. 87, no. 12, p. 125149

We describe a recent implementation of the combined GW and dynamical mean field method (GW+DMFT) for the two-dimensional Hubbard model with onsite and nearest-neighbor repulsion. We clarify the relation of the GW+DMFT scheme to alternative approaches in the literature, and discuss the corresponding approximations to the free-energy functional of the model. Furthermore, we describe a numerically...

Spectral Properties of Correlated Materials: Local Vertex and Nonlocal Two-Particle Correlations from Combined GW and Dynamical Mean Field Theory

Ayral, Thomas ; Werner, Philipp ; Biermann, Silke

In: Physical Review Letters, 2012, vol. 109, no. 22, p. 226401

We present a fully self-consistent combined GW and dynamical mean field (DMFT) study of the extended two-dimensional Hubbard model. The inclusion of the local dynamical vertex stemming from the DMFT self-energy and polarization is shown to cure the known problems of self-consistent GW. We calculate momentum-resolved spectral functions, two-particle polarizations, and electron-loss spectra, as...