Thèse de doctorat : Università della Svizzera italiana, 2021 ; 2021INFO010.
The idea of agents in superposition is central to both encapsulated observers, i.e. Wigner’s-friend-type experiments, and correlations without definite causal order. An agent might be regarded as a thinking or computing entity that is able to perform operations on (other) quantum systems. In case of Wigner’s-friend setups, an agent’s ability to make predictions about other agents...
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