# Operational quantum theory without predefined time

@inproceedings{Oreshkov2016OperationalQT, title={Operational quantum theory without predefined time}, author={Ognyan Oreshkov and Nicolas J. Cerf}, year={2016} }

- Published 2016
DOI:10.1088/1367-2630/18/7/073037

The standard formulation of quantum theory assumes a predefined notion of time. This is a major obstacle in the search for a quantum theory of gravity, where the causal structure of space-time is expected to be dynamical and fundamentally probabilistic in character. Here, we propose a generalized formulation of quantum theory without predefined time or causal structure, building upon a recently introduced operationally time-symmetric approach to quantum theory. The key idea is a novel… CONTINUE READING

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