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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" )

Sunday, October 03, 2010

Upcoming Physics Conferences

[To add an upcoming physics conference to this list, please send an email to 2Physics@gmail.com ]

Oct 18-23: 4th Intl Symposium "High Energy Physics, Cosmology and Gravity" (Kyiv, Ukraine)
Oct 23-28: New Trends in Nonlinear Dynamics: Heat Control and Thermo-electric Efficiency(Erice, Sicily, Italy)
Nov 01-06: Petrov 2010 Anniversary Symposium on General Relativity and Gravitation (Kazan, Russia)
Nov 01-07: Finsler Extensions of Relativity Theory (Moscow, Russia)
Nov 03-05: 12th WSEAS Intl Conference on Mathematical and Computational Methods in Science and Engineering (Faro, Portugal)
Nov 03-05: 3rd WSEAS Intl Conference on Materials Science (Faro, Portugal)
Nov 17-19: International Conference on Two Cosmological Models (Mexico City, Mexico)
Feb 16-18: Foundational Aspects of Cosmology (Hamburg, Germany)
May 02-06: 5th Feynman Festival (Guarujá or Foz de Iguaçu, Brazil)
May 02-06: 12th Intl Conference on Squeezed States and Uncertainty Relations (Guarujá or Foz de Iguaçu, Brazil)
May 16-18: Intl Symposium on Photonics and Optoelectronics (Wuhan, China)
May 30- June 03: 8th Alexander Friedmann Intl Seminar on Gravitation and Cosmology (with a Satellite symposium devoted to the Casimir effect) (Rio de Janeiro, Brazil)
Jul 24-30: 19th International Conference on Composites or Nano Engineering (Shanghai, China)
Aug 07-13: Quantum Theory and Symmetries (Prague, Czech Republic)

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