I will discuss a way to quantify the degrees of incompatibility of two observables in a probabilistic physical theory and, based on this, a global measure of the degree of incompatibility inherent in such theories, across all observable pairs. This makes it possible to compare probabilistic theories with respect to the nonclassical feature of incompatibility, raising many interesting questions. I will show that quantum theory contains observables that are as incompatible as any probabilistic physical theory can have. In particular, two of the most common pairs of complementary observables (position and momentum; number and phase) are maximally incompatible.
De Anthony Leverrier
De Zbigniew Puchała
De Benoit Collins
De Satya Majumdar
De Motohisa Fukuda
De Nilanjana Datta
De Daniel Stilck Franca
De Radosław Adamczak
De Madalin Guta
De Antonio Acín
De Ashley Montanaro
De Ping Zhong
De James Mingo
De Camille Male
De Albert Schwarz
De Clément Delcamp
De Clément Delcamp
De Giuseppe Savaré
