uncertainty principle was introduced by Werner Heisenberg in 1926,
molding the celebrated Copenhagen interpretation of quantum mechanics.
Eighty years have passed and the approximate solution of Schrödinger
equation became so ubiquitous that we tend to forget about the
interpretation issues associated with quantum particles (electrons and
In an attempt to revive the spirit of quantum mechanics founders, the UPTP2009 (Uncertainty Principle in Theory and Practice) international workshop will gather theoreticians in an uncertain location to openly discuss the state-of-the-art of first-principles simulations. To add up to the uncertainty, there is a special activity programmed for Tuesday afternoon.