2018/03/13 by Luca Curcuraci, Curcuraci, Luca
Physics and Astronomy · Computer Science · #Quantum Mechanics and Applications #Statistical Mechanics and Entropy #Quantum Information and Cryptography
paper · pdf · doi:10.48550/arxiv.1803.04913
A central feature of quantum mechanics is the non-commutativity of operators used to describe physical observables. In this article, we present a critical analysis on the role of non-commutativity in quantum theory, focusing on its consequences in the probabilistic description. Typically, a random phenomenon is described using the measure-theoretic formulation of probability theory. Such a description can also be done using algebraic methods, which are capable to deal with non-commutative random variables (like in quantum mechanics). Here we propose a method to construct a non-commutative probability theory starting from an ordinary measure-theoretic description of probability. This will be done using the entropic uncertainty relations between random variables, in order to evaluate the presence of non-commutativity in their algebraic description.