Thursday, March 21, 2019, 16:00
WHGA Auditorium
Jürg Fröhlich, ETHZ
Abstract:
New Foundations of Quantum Mechanics are proposed: the "ETH-Approach to
Quantum Mechanics" where "E" stands for Events, "T" for Trees, and "H"
for Histories. This approach enables us to introduce a precise notion
of "events" into Quantum Mechanics (c.f. Haag), explain what it means to
observe an event by recording the value of an appropriate physical
quantity, and to exhibit the stochastic dynamics of states of isolated
open systems featuring events. It adds to the standard formulation of
the theory two simple, but fundamental hypotheses concerning the
emergence of "events" and their effect on the evolution of states of
such systems.
The "ETH-Approach to QM" results in a "Quantum Theory without
observers". It does away with "extensions of Quantum Mechanics", all of
which have remained unacceptably vague.