Maximum and Minimum Causal Effects of Physical Processes

We introduce two quantitative measures of the strength of causal relations in quantum theory and more general physical theories. These two measures, called the maximum and minimum causal effect, quantify the maximum and minimum changes in the output of a quantum process induced by changes in its inp...

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Bibliographic Details
Main Authors: Giulio Chiribella, Kaumudibikash Goswami
Format: Article
Language:English
Published: American Physical Society 2025-05-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/PRXQuantum.6.020335
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