The Modal Interpretation of Quantum Theory

Abstract

The paper presents the modal interpretation of quantum theory. The modal interpretation is special since in other classical physical theories and in other interpretations of quantum theory the synchronous states of the system are fixed once and for all, in the modal interpretation of quantum theory, however, the set of synchronous possibilities can vary in time. Thus, unlike in other theories, in the modal interpretation the evolution of the system does not govern the actual state, but the set of possible states.