Results 61 to 70 of about 378,715 (336)

Quantum channels and their entropic characteristics [PDF]

open access: yesReports on Progress in Physics, 2012
One of the major achievements of the recently emerged quantum information theory is the introduction and thorough investigation of the notion of quantum channel which is a basic building block of any data-transmitting or data-processing system. This development resulted in an elaborated structural theory and was accompanied by the discovery of a whole ...
HOLEVO A. S, GIOVANNETTI, VITTORIO
openaire   +5 more sources

The Regulation of Trace Metal Elements in Cancer Ferroptosis

open access: yesAdvanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang   +5 more
wiley   +1 more source

Idler-free multi-channel discrimination via multipartite probe states

open access: yesnpj Quantum Information, 2021
The characterisation of Quantum Channel Discrimination (QCD) offers critical insight for future quantum technologies in quantum metrology, sensing and communications. The task of multi-channel discrimination creates a scenario in which the discrimination
Cillian Harney, Stefano Pirandola
doaj   +1 more source

Public Quantum Communication and Superactivation

open access: yes, 2010
Is there a meaningful quantum counterpart to public communication? We argue that the symmetric-side channel -- which distributes quantum information symmetrically between the receiver and the environment -- is a good candidate for a notion of public ...
Brandão, Fernando G. S. L.   +1 more
core   +1 more source

Quantum channel learning

open access: yesPhysical Review E
The unitary learning from arXiv:2405.10263 is generalized to density matrices and quantum channels.
Mikhail Gennadievich Belov   +3 more
openaire   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

The Structure and Quantum Capacity of a Partially Degradable Quantum Channel

open access: yesIEEE Access, 2014
The quantum capacity of degradable quantum channels has been proven to be additive. On the other hand, there is no general rule for the behavior of quantum capacity for antidegradable quantum channels.
Laszlo Gyongyosi
doaj   +1 more source

Optimisation of the routing protocol for quantum wireless Ad Hoc network

open access: yesIET Quantum Communication, 2022
This study addresses the optimisation of on‐demand routing protocols for quantum wireless Ad Hoc network. The study improves the route discovery protocol by proposing a ‘reverse synchronisation method’, which means after the route request is completed ...
Ling Zhang, Qin Liu
doaj   +1 more source

Entropy Bound for the Classical Capacity of a Quantum Channel Assisted by Classical Feedback [PDF]

open access: yes, 2019
We prove that the classical capacity of an arbitrary quantum channel assisted by a free classical feedback channel is bounded from above by the maximum average output entropy of the quantum channel.
Ding, Dawei   +3 more
core   +3 more sources

Quantum channels and memory effects [PDF]

open access: yesReviews of Modern Physics, 2014
Any physical process can be represented as a quantum channel mapping an initial state to a final state. Hence it can be characterized from the point of view of communication theory, i.e., in terms of its ability to transfer information. Quantum information provides a theoretical framework and the proper mathematical tools to accomplish this.
CARUSO, FILIPPO   +3 more
openaire   +4 more sources

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