Quantum resource theories

E Chitambar, G Gour - Reviews of modern physics, 2019 - APS
Quantum resource theories (QRTs) offer a highly versatile and powerful framework for
studying different phenomena in quantum physics. From quantum entanglement to quantum …

Quantum internet—applications, functionalities, enabling technologies, challenges, and research directions

A Singh, K Dev, H Siljak, HD Joshi… - … Surveys & Tutorials, 2021 - ieeexplore.ieee.org
The advanced notebooks, mobile phones, and Internet applications in today's world that we
use are all entrenched in classical communication bits of zeros and ones. Classical Internet …

Quantum computations without definite causal structure

G Chiribella, GM D'Ariano, P Perinotti, B Valiron - Physical Review A—Atomic …, 2013 - APS
We show that quantum theory allows for transformations of black boxes that cannot be
realized by inserting the input black boxes within a circuit in a predefined causal order. The …

Enhanced communication with the assistance of indefinite causal order

D Ebler, S Salek, G Chiribella - Physical review letters, 2018 - APS
In quantum Shannon theory, the way information is encoded and decoded takes advantage
of the laws of quantum mechanics, while the way communication channels are interlinked is …

Indefinite causal order in a quantum switch

K Goswami, C Giarmatzi, M Kewming, F Costa… - Physical review …, 2018 - APS
Quantum mechanics allows events to happen with no definite causal order: this can be
verified by measuring a causal witness, in the same way that an entanglement witness …

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 causal modelling

F Costa, S Shrapnel - New Journal of Physics, 2016 - iopscience.iop.org
Causal modelling provides a powerful set of tools for identifying causal structure from
observed correlations. It is well known that such techniques fail for quantum systems, unless …

Experimental superposition of orders of quantum gates

LM Procopio, A Moqanaki, M Araújo, F Costa… - Nature …, 2015 - nature.com
Quantum computers achieve a speed-up by placing quantum bits (qubits) in superpositions
of different states. However, it has recently been appreciated that quantum mechanics also …

Experimental verification of an indefinite causal order

G Rubino, LA Rozema, A Feix, M Araújo, JM Zeuner… - Science …, 2017 - science.org
Investigating the role of causal order in quantum mechanics has recently revealed that the
causal relations of events may not be a priori well defined in quantum theory. Although this …

Quantum common causes and quantum causal models

JMA Allen, J Barrett, DC Horsman, CM Lee… - Physical Review X, 2017 - APS
Reichenbach's principle asserts that if two observed variables are found to be correlated,
then there should be a causal explanation of these correlations. Furthermore, if the …