Objective The project is mainly intended to bring together the efforts of four research teams (two from Russia and two from INTAS countries) with a recognized experience in the field of high intensity laser-atom interactions. It is proposed to investigate two specific classes of processes, which have attracted considerable attention recently and are considered as "hot topics" in the domain. The general strategy is to combine the analytical expertise of the Russian groups with the computing experience gained by the INTAS partners. Another goal is to perform new experiments in the field, within the framework of a close collaboration between theorists and experimentalists.One of the topics to be considered is focused on the experimental and theoretical study of the stabilization of atoms against ionisation in ultra intense laser fields, a counterintuitive phenomenon which has attracted much attention and has received several different interpretations. The goal is to perform joint experimental and theoretical investigations in order to get a clearer picture of the basic mechanism leading to the effect, in Rydberg atomic states.Another objective of the project is to explore the difficult questions related to the importance of relativity in atom-laser interactions.Broadly, relativistic effects are expected to become important in two distinct instances:- in the high frequency limit, which applies to the radiation produced by X-ray laser devices or by high order harmonic sources, when considering multiphoton processes involving inner-shells in high-Z atoms or ions. Relativity and retardation have to be taken into account as the usual nonrelativistic treatment is no longer valid.- in the ultrahigh-intensity limit when even an initially slow electron will acquire a ponderomotive energy comparable to its rest mass energy.In both situations, deriving adequate theoretical descriptions of the phenomena to be observed presents major difficulties. The teams involved in the projects have already a recognized experience in the field and it is expected that significant advances will be achieved thanks to the planned cooperation. Programme(s) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Topic(s) 1B - Condensed Matter, Optics and Plasma Physics RUSSIA - RUSSIA Call for proposal Data not available Funding Scheme Data not available Coordinator Universite Pierre et Marie Curie EU contribution No data Address Rue Pierre et Marie Curie 11 75005 Paris France See on map Total cost No data Participants (3) Sort alphabetically Sort by EU Contribution Expand all Collapse all Russian Academy of Sciences Russia EU contribution No data Address Vavilov Street 38 117942 Moscow See on map Total cost No data Universite Libre de Bruxelles Belgium EU contribution No data Address Campus Plaine, C. P. 227, Boulevard du Triomphe 1050 Bruxelles See on map Total cost No data Voronezh State University Russia EU contribution No data Address University Square 1 394693 Voronezh See on map Total cost No data
