It was not until the late 1960s, prompted partly by results in algebraic quantum field theory and quantum statistical mechanics due to the school of Rudolf Haag, that the more general non-tracial Tomita–Takesaki theory was developed, heralding a new era in the theory of von Neumann algebras.
The years immediately after the death of Franco were chaotic, offering young academics few opportunities, and so Elizalde spent his postdoctoral years abroad with Rudolf Haag at the II.
Since the end of the eighties, the local quantum field theory approach due to Rudolf Haag and Daniel Kastler has been implemented in order to include an algebraic version of quantum field theory in curved spacetime.
Rudolf Nureyev | Rudolf Steiner | Rudolf Virchow | Rudolf Hess | Rudolf II, Holy Roman Emperor | Rudolf Kempe | Rudolf Hilferding | Rudolf | Rudolf Schwarz | Rudolf Haag | Rudolf, Crown Prince of Austria | Rudolf Schwarz (conductor) | Rudolf Platte | Rudolf Nebel | Rudolf Carnap | Den Haag Hollands Spoor railway station | Rudolf Thurneysen | Rudolf Stingel | Rudolf Serkin | Rudolf II | Rudolf Bultmann | Rudolf Baumgartner | Richard Haag | Rudolf von Jhering | Rudolf Scharping | Rudolf Otto | Rudolf (musical) | Rudolf Kreitlein | Rudolf III, Duke of Saxe-Wittenberg | Rudolf Hruska |
Since the 1960s, following the work of Arthur Wightman and Rudolf Haag, also modern quantum field theory can be considered close to an axiomatic description.