Work

Experiments on quantum causality

Year: 2020

Type: article

Abstract: Quantum causality extends the conventional notion of the 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, the authors will walk through the basic theory of indefinite causal order and focus on experiments that rely on a physically realizable indefinite causal ordered process—the quantum switch.

Source: AVS Quantum Science

DOI: 10.1116/5.0010747

Authors: K. Goswami, J. Romero

Institutions: The University of Queensland, ARC Centre of Excellence for Engineered Quantum Systems

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: Westpac Bicentennial Foundation, Australian Research Council

Award: ARC Centre of Excellence for Engineered Quantum Systems