Álvaro de Rújula Álvaro de Rújula is a theorist at CERN and IFT/CSIC/UAM in Madrid, Spain. Who invented quarks? 30 May 2014 | Opinion for CERN people | Álvaro de Rújula | The official story is demonstrably wrong, says CERN theorist Álvaro de Rújula What is a "theoretical physicist"? 14 Apr 1999 | Opinion for the public | Álvaro de Rújula | Imagine them as absent-minded, egg-headed, bizarre characters scratching their chins while deeply engaged in thought? Well, you might be right.