On the linearity of the Schrödinger equationVienna, May 2005http://www.cft.edu.pl/~birula/sem/Vienna.pdfParticle beams guided by electromagnetic vorticesLondon, September 2005http://www.cft.edu.pl/~birula/sem/London.pdfThe Riemann-Silberstein vector as a photon wave functionSeptember 2005http://www.cft.edu.pl/~birula/sem/2005.pdfTrojan Dynamics: From the Solar System to Molecules, Atoms, and ElectronsMay 2006http://www.cft.edu.pl/~birula/sem/TrojanDynamics.pdfCan twistors be useful in physics?Wrocław, October 2006http://www.cft.edu.pl/~birula/sem/Wroclaw.pdfQuantum electrodynamics of qubitsApril 2007http://www.cft.edu.pl/~birula/sem/QubitQED.pdfVariations on a theme of electrodynamicsJune 2008Gdańskhttp://www.cft.edu.pl/~birula/sem/PhotWig.pdfSpace-time description of squeezing and entanglement of photonsSeptember 2008http://www.cft.edu.pl/~birula/sem/BadHonnef.pdfHelicity in quantum electrodynamicsNovember 2008http://www.cft.edu.pl/~birula/sem/Helicity.pdfThe R´enyi entropy and the uncertainty relations in quantum mechanicsNovember 2008http://www.cft.edu.pl/~birula/sem/EntropicMath.pdf75 years of Born-Infeld electrodynamicsWarsaw, December 2008http://www.cft.edu.pl/~birula/sem/BornInf.pdfDeformed states of atomsZakopane, June 2009http://www.cft.edu.pl/~birula/sem/Deformed.pptTrojan states of electrons in atomsWarsaw, April 2009http://www.cft.edu.pl/~birula/sem/Trojans.ppt