Making sense of Born's rule p α = Ψ α 2 with the many-worlds interpretation

International audienceThis work is an attempt to justify Born's rule within the framework of the many-worlds interpretation proposed by Everett. Here, we develop a unitary model of many-minds based on the work of Albert and Loewer (Synthese 77, 195 (1988)). At the difference of the model of Albert and Loewer ours is not genuinely stochastic and dualistic and also involves some classicallike randomness based on ignorance about initial conditions of the Universe. We also compare the present method for recovering Born's rule with previous works based on Decision theory a la Deutsch Wallace and envariance a la Zurek and found that all these approaches are strongly related to each other