769 citations
- Foundation for Research and Technology HellasGR59 papers
- Iowa State UniversityUS15 papers
- Observatoire de ParisFR15 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- Cornell UniversityUS12 papers
- FORTH Institute of Electronic Structure and LaserGR12 papers
- Ames National LaboratoryUS11 papers
- Max Planck Institute for Extraterrestrial PhysicsDE10 papers
- California Institute of TechnologyUS8 papers
- Centre de Physique ThéoriqueFR7 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR7 papers
- École PolytechniqueFR7 papers
16 papers · 1 filter
On the best constant of Hardy-Sobolev Inequalities
Adimurthi, Stathis Filippas, Achilles Tertikas
We obtain the sharp constant for the Hardy-Sobolev inequality involving the distance to the origin. This inequality is equivalent to a limiting Caffarelli-Kohn-Nirenberg inequality…
Femtosecond Coherent Control of Spin with Light in (Ga,Mn)As ferromagnets
M. D. Kapetanakis, I. E. Perakis, K. J. Wickey +2
Using density matrix equations of motion, we predict a femtosecond collective spin tilt triggered by nonlinear, near--ultraviolet (3eV), coherent photoexcitation of (Ga,Mn)As…
Negative refractive index due to chirality
Jiangfeng Zhou, Jianfeng Dong, Thomas Koschny +2
We demonstrate experimentally and numerically that metamaterials based on bilayer cross wires give giant optical activity, circular dichroism, and negative refractive index. The pr…
Negative refractive index response of weakly and strongly coupled optical metamaterials
Jiangfeng Zhou, Thomas Koschny, Maria Kafesaki +1
e present a detailed study of the retrieved optical parameters, electrical permittivity, magnetic permeability and refractive index, of the coupled fishnet metamaterial structures…
Nonplanar Chiral Metamaterials with Negative Index
Bingnan Wang, Jiangfeng Zhou, Thomas Koschny +1
We demonstrate experimentally and numerically that nonplanar chiral metamaterials give giant optical activity, circular dichroism, and negative refractive index. The transmission,…
Yang-Baxter maps associated to elliptic curves
Vassilios G. Papageorgiou, Anastasios G. Tongas
We present Yang-Baxter maps associated to elliptic curves. They are related to discrete versions of the Krichever-Novikov and the Landau-Lifshits equations. A lifting of scalar int…