Zero net change in quantum measurement ‘non-objectivity’ defines a new boundary for interpreting probabilistic outcomes. Unlike previous approaches, this work demonstrates how reductions in measurement asymmetry, indicating greater objectivity, are always balanced by increases in inherent uncertainty. This decomposition into unsharpness and asymmetry tensors offers refined tools for assessing when measurements reveal pre-existing properties rather than creating them.
Researchers Quantify How Objective a Quantum Measurement Is
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