Experiments on quantum causality

• URL: http://arxiv.org/abs/2009.00515v1
• Date: Tue, 1 Sep 2020 15:25:26 GMT
• Title: Experiments on quantum causality
• Authors: K. Goswami and J. Romero
• Abstract summary: Quantum causality extends the conventional notion of fixed causal structure by allowing channels and operations to act in an indefinite causal order. In this review, we will walk through the basic theory of indefinite causal order and focus on experiments that rely on a physically realisable indefinite causal ordered process.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum causality extends the conventional notion of fixed causal structure by allowing channels and operations to act in an indefinite causal order. The importance of such an indefinite causal order ranges from the foundational---e.g. towards a theory of quantum gravity---to the applied---e.g. for advantages in communication and computation. In this review, we will walk through the basic theory of indefinite causal order and focus on experiments that rely on a physically realisable indefinite causal ordered process---the quantum switch.

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