Projects per year
Abstract
In the past decade, the toolkit of quantum information has been expanded to include processes in which the basic operations do not have definite causal relations. Originally considered in the context of the unification of quantum mechanics and general relativity, these causally indefinite processes have been shown to offer advantages in a wide variety of quantum-information processing tasks, ranging from quantum computation to quantum metrology. Here, we overview these advantages and the experimental efforts to realize them. We survey both the experimental techniques employed and the theoretical methods developed in support of the experiments, before discussing the interpretations of current experimental results and giving an outlook on the future of the field.
Original language | English |
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Pages (from-to) | 483–499 |
Number of pages | 17 |
Journal | Nature Reviews Physics |
Volume | 6 |
Issue number | 8 |
DOIs | |
Publication status | Published - Aug 2024 |
Austrian Fields of Science 2012
- 103025 Quantum mechanics
- 103026 Quantum optics
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quantA: Quantum Science Austria
Aspelmeyer, M., Arndt, M., Brukner, C., Schuch, N., Walther, P. & Nunnenkamp, A.
1/10/23 → 30/09/28
Project: Research funding
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GRAVITES: Gravitational interferometry with entangled states in optical fibers
Walther, P. & Chrusciel, P. T.
1/04/23 → 31/03/29
Project: Research funding
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Applications and Hardware for Photonic Quantum Information Processing
1/03/21 → 28/02/25
Project: Research funding