A Bayesian approach to compatibility, improvement, and pooling of quantum states

  title={A Bayesian approach to compatibility, improvement, and pooling of quantum states},
  author={Matthew Leifer and Robert W. Spekkens},
  journal={Journal of Physics A: Mathematical and Theoretical},
  • M. Leifer, R. Spekkens
  • Published 5 October 2011
  • Philosophy
  • Journal of Physics A: Mathematical and Theoretical
In approaches to quantum theory in which the quantum state is regarded as a representation of knowledge, information, or belief, two agents can assign different states to the same quantum system. This raises two questions: when are such state assignments compatible? And how should the state assignments of different agents be reconciled? In this paper, we address these questions from the perspective of the recently developed conditional states formalism for quantum theory (Leifer M S and… 

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