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2Physics Quote:
"Can photons in vacuum interact? The answer is not, since the vacuum is a linear medium where electromagnetic excitations and waves simply sum up, crossing themselves with no interaction. There exist a plenty of nonlinear media where the propagation features depend on the concentration of the waves or particles themselves. For example travelling photons in a nonlinear optical medium modify their structures during the propagation, attracting or repelling each other depending on the focusing or defocusing properties of the medium, and giving rise to self-sustained preserving profiles such as space and time solitons or rapidly rising fronts such as shock waves." -- Lorenzo Dominici, Mikhail Petrov, Michal Matuszewski, Dario Ballarini, Milena De Giorgi, David Colas, Emiliano Cancellieri, Blanca Silva Fernández, Alberto Bramati, Giuseppe Gigli, Alexei Kavokin, Fabrice Laussy, Daniele Sanvitto. (Read Full Article: "The Real-Space Collapse of a Two Dimensional Polariton Gas" )

Saturday, September 03, 2005

'Inertial Confinement'

The "inertial confinement" technique uses lasers or ion beams rather than
magnets to confine the plasma. This will be investigated by the National
Ignition Facility (NIF) in the US and the Laser Mégajoule (LMJ) in France.
However, both these billion-dollar lasers will primarily be used for nuclear
-weapons research, with only 15% of their time being available for other
areas of physics. In this conventional approach to inertial confinement, the
lasers that compress the fuel capsule also heat it.

Some useful links on this topic:


At 11:19 PM, Blogger Vijay said...


Can you post some links and details about such topics.

IMO, it really doesn't serve the purpose when your posts are this short. Just my 2 cents.

At 11:09 AM, Blogger Vijay said...

Thanks for the links. The link to ucb IFE details the whole concept and the programme with the limitations behind it.

I really appreciate your effort !


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