My collaborators All the people that contributed to what I know nowadays … Oriol Pujolas, UAB/IFAE Barcelona Lasma Alberte, Imperial College Amadeo Jimenez Alba, IFT Madrid Martin Ammon, Jena University Mikhail Goykhman, Jerusalem University Tomas Andrade, UB Barcelona Weijia Li, Dalian University Andrea Amoretti, Genoa University Andrei Khmelnitsky , ICTP Trieste Alexander Krikun, Leiden University Alessio Zaccone, Milan University Alex Buchel, Perimeter Institute- University of Western Ontario Blaise Gouteraux, Ecole Polytechnique, CPHT Bikash Padhi, University of Illinois Chandan Setty, University of Florida Danny Brattan, Genoa University Daniele Musso, IGFAE – Instituto Galego de Física das Altas Enerxías Elias Kiritsis, University of Crete – APC Paris Kostya Trachenko, Queen Mary Londond Nicodemo Magnoli, Genoa University Napat Poovuttikul, Iceland University Philip Phillips, University of Illinois Sebastian Moeckel , Jena University Victor Cancer Castillo, IFAE Mikhail Vasin, Russian Academy of Sciences Vadim Brazkhin, Institute for High Pressure Physics of Russian Academy of Sciences Panagiotis Betzios, University of Crete Vasilis Niarchos, Durham University Ulf Gran, Chalmers University Marcus Tronso, Chalmers University Tobias Zingg, Nordita Sebastian Grieninger, Jena University Sean Gray, Jena University Akash Jain, Victoria University Antonio Garcia Garcia, Jiao Tong University Shangai Ayan Mukhopadhyay , Indian Institute Of Technology Madras Dario Rosa, KIAS Seoul Saso Grozdanov, MIT