The objectivity of observations in quantum mechanics

Abstract

The objectivity in quantum mechanics is not unambiguous. This issue is illustrated in Wigner’s friend thought experiment, where two observers experience different realities according to the deterministic evolution of the Schr¨odinger equation or according to the collapse when a measurement is performed. This work aims to discuss whether this different observer facts can be described in a framework where both are independent of the observer. To address this question, the problem is exposed and will be discussed