Seminars and Workshops

ABSTRACT

ABSTRACT
The existence of incompatible measurements is a fundamental feature of quantum theory. Incompatibility has several different manifestations. For instance, not all pairs of measurements can be performed simultaneously. Another fact is that generally a measurement disturbs the subsequent measuremens. I will review some recent results on this topic of incompatibility of quantum measurements.

ABSTRACT

ABSTRACT
We show how to use a unitary Mourre method to prove the absence of singular continuous spectrum for abstract unitary operators. As in the self-adjoint case, one can also control the possible eigenvalues. Finally, we show how to apply the theory in several specifc examples, including quantum mechanical systems.