215 citations
- Centre National de la Recherche ScientifiqueFR25 papers
- Laboratoire Structures, Propriétés et Modélisation des SolidesFR11 papers
- Laboratoire d'Énergétique Moléculaire et Macroscopique, CombustionFR7 papers
- École Nationale Supérieure de Mécanique et d'AérotechniqueFR3 papers
- Sorbonne UniversitéFR3 papers
- Université Paris-Panthéon-AssasFR3 papers
- École Normale Supérieure Paris-SaclayFR2 papers
- Indian Institute of Science BangaloreIN2 papers
- Institut de Chimie Moléculaire et des Matériaux d'OrsayFR2 papers
- Institut des NanoSciences de ParisFR2 papers
- Laboratoire de physique de la matière condenséeFR2 papers
- Université de Picardie Jules VerneFR2 papers
5 papers · 1 filter
Second harmonic generation and X-ray diffraction studies of pretransitional region in relaxor K(1-x) LixTaO3
Hiroko Yokota, Yoshiaki Uesu, Charlotte Malibert +1
Optical second-harmonic-generation(SHG) observations and precise X-ray diffraction experiments have been performed on quantum paraelectrics KTaO3 (KTO) and relaxor K(1-x)LixTaO3 wi…
Phase diagram of Pb(Zr,Ti)O3 solid solutions from first principles
Igor A. Kornev, L. Bellaiche, P. -E. Janolin +2
A first-principles-derived scheme, that incorporates ferroelectric and antiferrodistortive degrees of freedom, is developed to study finite-temperature properties of PbZr1-xTixO3 s…
Closed-form expressions for correlated density matrices: application to dispersive interactions and example of (He)2
Sebastien Ragot, Pierre J. Becker
Empirically correlated density matrices of N-electron systems are investigated. Exact closed-form expressions are derived for the one- and two-electron reduced density matrices fro…
Exact Kohn-Sham versus Hartree-Fock in momentum-space: examples of two-fermion systems
Sebastien Ragot
The question of how density functional theory (DFT) compares with Hartree-Fock (HF) for the computation of momentum-space properties is addressed in relation to systems for which (…
The Multiparameter Fractional Brownian Motion
Erick Herbin, Ely Merzbach
We define and study the multiparameter fractional Brownian motion. This process is a generalization of both the classical fractional Brownian motion and the multiparameter Brownian…