A quantum evolution over several instants can be represented as a single vector in a tensor product of Hilbert spaces using the entangled history formalism, resolving Aharonov's challenge.
Bell Tests for Histories
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abstract
We describe a procedure to create entangled history states and measurements that would enable one to check for temporal entanglement. The checks take the form of inequalities among observable quantities. They are similar in spirit, but different in detail, to Bell tests for ordinary entanglement.
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quant-ph 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
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Discrete-Time Modelling of Quantum Evolutions, the Energy-Time Uncertainty Relation and General Extensions in the Entangled History Formalism
A quantum evolution over several instants can be represented as a single vector in a tensor product of Hilbert spaces using the entangled history formalism, resolving Aharonov's challenge.