[HTML][HTML] Photonic quantum information processing: A concise review

S Slussarenko, GJ Pryde - Applied physics reviews, 2019‏ - pubs.aip.org
Photons have been a flagship system for studying quantum mechanics, advancing quantum
information science, and develo** quantum technologies. Quantum entanglement …

High‐dimensional quantum communication: benefits, progress, and future challenges

D Cozzolino, B Da Lio, D Bacco… - Advanced Quantum …, 2019‏ - Wiley Online Library
In recent years, there has been a rising interest in high‐dimensional quantum states and
their impact on quantum communication. Indeed, the availability of an enlarged Hilbert …

Charging quantum batteries via indefinite causal order: Theory and experiment

G Zhu, Y Chen, Y Hasegawa, P Xue - Physical review letters, 2023‏ - APS
In the standard quantum theory, the causal order of occurrence between events is
prescribed, and must be definite. This has been maintained in all conventional scenarios of …

Quantum metrology with indefinite causal order

X Zhao, Y Yang, G Chiribella - Physical review letters, 2020‏ - APS
We address the study of quantum metrology enhanced by indefinite causal order,
demonstrating a quadratic advantage in the estimation of the product of two average …

Bell's theorem for temporal order

M Zych, F Costa, I Pikovski, Č Brukner - Nature communications, 2019‏ - nature.com
Time has a fundamentally different character in quantum mechanics and in general relativity.
In quantum theory events unfold in a fixed order while in general relativity temporal order is …

Experimental quantum communication enhancement by superposing trajectories

G Rubino, LA Rozema, D Ebler, H Kristjánsson… - Physical Review …, 2021‏ - APS
In quantum communication networks, wires represent well-defined trajectories along which
quantum systems are transmitted. In spite of this, trajectories can be used as a quantum …

Indefinite causal order enables perfect quantum communication with zero capacity channels

G Chiribella, M Banik, SS Bhattacharya… - New Journal of …, 2021‏ - iopscience.iop.org
Quantum mechanics is compatible with scenarios where the relative order between two
events can be indefinite. Here we show that two independent instances of a noisy process …

Experimental aspects of indefinite causal order in quantum mechanics

LA Rozema, T Strömberg, H Cao, Y Guo, BH Liu… - Nature Reviews …, 2024‏ - nature.com
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 …

Quantum refrigeration with indefinite causal order

D Felce, V Vedral - Physical review letters, 2020‏ - APS
We propose a thermodynamic refrigeration cycle which uses indefinite causal orders to
achieve nonclassical cooling. The cycle cools a cold reservoir while consuming purity in a …

Cyclic quantum causal models

J Barrett, R Lorenz, O Oreshkov - Nature communications, 2021‏ - nature.com
Causal reasoning is essential to science, yet quantum theory challenges it. Quantum
correlations violating Bell inequalities defy satisfactory causal explanations within the …