Rethinking causality in quantum mechanics / Christina Giarmatzi.

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Rethinking causality in quantum mechanics / Christina Giarmatzi.

9783030319304 (electronic book)
303031930X (electronic book)
9783030319298

https://doi.org/10.1007/978-3-030-31930-4
https://doi.org/10.1007/978-3-030-31

Cham : Springer, [2019]

©2019

English

1 online resource : illustrations.

10.1007/978-3-030-31930-4 doi
10.1007/978-3-030-31

QC6.4.C3 G53 2019eb

530.01

Causality is central to understanding the mechanisms of nature: some event "A" is the cause of another event "B". Surprisingly, causality does not follow this simple rule in quantum physics: due to to quantum superposition we might be led to believe that "A causes B" and that "B causes A". This idea is not only important to the foundations of physics but also leads to practical advantages: a quantum circuit with such indefinite causality performs computationally better than one with definite causality. This thesis provides one of the first comprehensive introductions to quantum causality, and presents a number of advances.It provides an extension and generalization of a framework that enables us to study causality within quantum mechanics, thereby setting the stage for the rest of the work. This comprises: mathematical tools to define causality in terms of probabilities; computational tools to prove indefinite causality in an experiment; means to experimentally test particular causal structures; and finally an algorithm that detects the exact causal structure in an quantum experiment.

"Doctoral thesis accepted by The University of Queensland, Brisbane, Australia."

Includes bibliographical references.

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Online resource; title from PDF title page (SpringerLink, viewed October 31, 2019).

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