93 citations
- Université Toulouse III - Paul SabatierFR31 papers
- Centre National de la Recherche ScientifiqueFR23 papers
- Laboratoire de Physique ThéoriqueFR18 papers
- Laboratoire de Chimie et Physique QuantiquesFR8 papers
- Laboratoire Collisions Agrégats RéactivitéFR7 papers
- École Normale Supérieure - PSLFR3 papers
- Laboratoire Kastler BrosselFR2 papers
- Sorbonne UniversitéFR2 papers
- Université Fédérale de Toulouse Midi-PyrénéesFR2 papers
- Abcam (United States)US1 paper
- AREA Science ParkIT1 paper
- Australian National UniversityAU1 paper
10 papers · 1 filter
Theoretical studies of the phase transition in the anisotropic 2-D square spin lattice
Mohamad Al Hajj, Nathalie Guihery, Jean-Paul Malrieu +1
The phase transition occurring in a square 2-D spin lattice governed by an anisotropic Heisenberg Hamiltonian has been studied according to two recently proposed methods. The first…
Quantum computation and analysis of Wigner and Husimi functions: toward a quantum image treatment
M. Terraneo, B. Georgeot, D. L. Shepelyansky
We study the efficiency of quantum algorithms which aim at obtaining phase space distribution functions of quantum systems. Wigner and Husimi functions are considered. Different qu…
Phase transitions in the Shastry-Sutherland lattice
Mohamad Al Hajj, Jean-Paul Malrieu
Two recently developed theoretical approaches are applied to the Shastry-Sutherland lattice, varying the ratio between the couplings on the square lattice and on the oblique…
Modeling of inelastic transport in one-dimensional metallic atomic wires
Thomas Frederiksen, Mads Brandbyge, Nicolas Lorente +1
Inelastic effects in electron transport through nano-sized devices are addressed with a method based on nonequilibrium Green's functions (NEGF) and perturbation theory to infinite…
A renormalized excitonic method in terms of block excitations. Application to spin lattices
Mohamad Al Hajj, Jean-Paul Malrieu, Nathalie Guihéry
Dividing the lattice into blocks with singlet ground state and knowing the exact low energy spectrum of the blocks and of dimers (or trimers) of blocks, it is possible to approach…
Cluster excitation and ionization in high velocity collisions:the atomic approach
Ferid Mezdari, Karine Wohrer-Beroff, Marin Chabot
The independent atom and electron model [1] is introduced in a quantum context and associated approximations tentatively estimated. Confrontation of the model to measured ionizatio…