The Existence and Role of Quantum-State Noise

Abstract

The key observation about quantum reality is that it often appears as if, at some moment, the probability of a quantum event becomes a definite outcome for us. A careful analysis suggests, however, that what we perceive as a definite state -- the observed outcome of a quantum experiment -- is not strictly definite. From this, we conclude that the quantum world is active: its influence extends beyond a merely statistical and permanently fixed determination of reality as we experience it.