23rd Solvay Conference on Physics
Hotel MQtropole (Brussels), 1-3 December 2005
The Quantum Structure of Space and
TimeChair: Professor David Gross
The 23rd Solvay Conference on Physics took place in Brussels from December1 through December 3, 2005 according to the tradition initiated by Lorentz at the
1st Solvay Conference on Physics in 1911 (“Premier Conseil de Physique Solvay”).
It was followed on December 4 by a public event co-organized with the European
Commission, during which R. Dijkgraaf and B. Greene delivered public lectures and
a panel of scientists (T. Damour, R. Dijkgraaf, B. Greene, D. Gross, G. ’t Hooft, L.
Randall, G. Veneziano) answered questions from the audience.
The Solvay Conferences have always benefitted from the support and encourage-
ment of the Royal Family. His Royal Highness Prince Philippe of Belgium attended
the first session on December 1 and met some of the participants.
The organization of the 23rd Solvay Conference has been made possible thanks
to the generous support of the Solvay Family, the Solvay Company, the Belgian
National Lottery, the “Universitb Libre de Bruxelles”, the “Vrije Universeit Brus-
sel”, the “Communautk franCaise de Belgique”, the David and Alice Van Buuren
Foundation and the H6tel Mbtropole.
ix