EPSRC Reference: 
GR/N26241/01 
Title: 
LASERDRIVEN DYNAMICS OF MANYELECTRON ATOMS COMBINING BSPLINE TECHNIQUES AND RMATRIX FLOQUET THEORY 
Principal Investigator: 
van der Hart, Professor H 
Other Investigators: 

Researcher CoInvestigators: 

Project Partners: 

Department: 
Sch of Mathematics and Physics 
Organisation: 
Queen's University of Belfast 
Scheme: 
Standard Research (PreFEC) 
Starts: 
07 November 2000 
Ends: 
06 May 2002 
Value (£): 
58,950

EPSRC Research Topic Classifications: 
Scattering & Spectroscopy 


EPSRC Industrial Sector Classifications: 
No relevance to Underpinning Sectors 


Related Grants: 

Panel History: 

Summary on Grant Application Form 
The rapid advances in laser technology have unearthed a wealth of new phenomena in atomic physics. Since atoms generally contain many electrons, the full theoretical description must take all the interactions into account. The necessity for this treatment is shown most dramatically in the probability for double ionization versus single ionization, which has been measured to be 6 to 12 orders of magnitude larger than could be expected from a singleactive electron response.In this project we will develop an approach which describes the full dynamics of two electrons in a laser field of arbitrary strength. This is achieved by combining two stateoftheart techniques, Bspline basis sets for accurate atomic structure calculations and Rmatrix Floquet theory for multiphoton processes. We will extend Bspline basis techniques to enable the study of double photoionization processes. We will improve the efficiency of the Rmatrix Floquet calculations, so thatcalculations will become feasible at intensities an order of magnitude stronger than feasible at present.Keywords describing areas of proposalAtom and Molecular, Computing, Lasers, PhysicsManyelectron systems, electron repulsion, double photoionization

Key Findings 
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Potential use in nonacademic contexts 
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Summary 

Date Materialised 


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Project URL: 

Further Information: 

Organisation Website: 
http://www.qub.ac.uk 