Different unravelings of open quantum systems cannot be distinguished by any protocol without prior knowledge of the measurement scheme, since access to unraveling-dependent nonlinear statistics would violate relativistic causality.
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quant-ph 2years
2025 2verdicts
UNVERDICTED 2representative citing papers
Authors develop a quantum counterfactual formalism with measurement settings as antecedents that non-trivially answers hypothetical questions about alternative detectors.
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Theoretical Limits of Protocols for Distinguishing Different Unravelings
Different unravelings of open quantum systems cannot be distinguished by any protocol without prior knowledge of the measurement scheme, since access to unraveling-dependent nonlinear statistics would violate relativistic causality.
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Counterfactual quantum measurements
Authors develop a quantum counterfactual formalism with measurement settings as antecedents that non-trivially answers hypothetical questions about alternative detectors.