====== Christos Gagatsos ====== {| class="portrait" |- | style="width:159px;" rowspan="4" | {{members:gagatsos:image.jpg?nolink&150}} ! style="width:50px;"| Email: | style="width:541px;"| cgagatso (at) ulb.ac.be |- ! Phone: | +32-2-650 29 72 |- ! Fax: | +32-2-650 29 41 |- ! Address: | QuIC - Ecole Polytechnique de Bruxelles \\ Université Libre de Bruxelles \\ 50 av. F. D. Roosevelt - CP 165/59 \\ B-1050 Bruxelles \\ Belgique |} === Short biography === * Born in May under the sunny skies of Athens, Greece. * University Diploma in Physics [[http://en.uoa.gr/|University of Athens]]. * M.Sc. in Nuclear Physics and Physics of Elementary Particles [[http://en.uoa.gr/|University of Athens]]. * After a one year visit as a pre-Ph.D researcher at ULB in 2010, I registered as a Ph.D student in 2011. * I defended successfully my [[http://theses.ulb.ac.be/ETD-db/collection/available/ULBetd-01052015-120307/|Ph.D. thesis]] in December 2014. === Research interests === * Theoretical Quantum Optics * Quantum Information Theory * Open Quantum Systems * Quantum Field Theory and Quantum Information === Teaching === * Classical Information Theory (exercises), Ecole Polychnique de Bruxelles, 2011-2012, 2012-2013. * Monte Carlo simulation methods, Nuclear Physics lab, Physics Department, University of Athens, 2008-2009. === Publications and works in preparation === * //Quantum entropic characterization of Gaussian optical transformations using the replica method// C. N. Gagatsos, A. I. Karanikas, G. Kordas, and N. J. Cerf. http://arxiv.org/abs/1408.5062 * //Heralded noiseless amplification and attenuation of non-gaussian states of light// C. N. Gagatsos, J. Fiurasek, A. Zavatta, M. Bellini, and N. J. Cerf. Phys. Rev. A 89, 062311 (2014) http://link.aps.org/doi/10.1103/PhysRevA.89.062311 * //Majorization relations and entanglement generation in a beam splitter// C. N. Gagatsos,O. Oreshkov, and N. J. Cerf. Phys. Rev. A 87, 042307 (2013) http://link.aps.org/doi/10.1103/PhysRevA.87.042307 * //Mutual information and Bose-Einstein condensation// C. N. Gagatsos, A. I. Karanikas and G. I. Kordas. Open Syst. and Inf. Dyn. (World Scientific) Vol. 20, Issue 02 (2013) http://www.worldscientific.com/doi/abs/10.1142/S123016121350008X * //Probabilistic phase-insensitive optical squeezer in compliance with causality// C. N. Gagatsos, E. Karpov and N. J. Cerf. Phys. Rev. A 86, 012324 (2012) http://link.aps.org/doi/10.1103/PhysRevA.86.012324. * //Complex Time Evolution of Open Quantum Systems// C. N. Gagatsos, A. I. Karanikas and G. I. Kordas, Open Syst. and Inf. Dyn. (World Scientific), Vol. 18, Issue 03, Page 261 (2011) http://www.worldscinet.com/osid/18/1803/S1230161211000182.html