Results 91 to 100 of about 4,287,757 (400)
Energy-Constrained LOCC-Assisted Quantum Capacity of the Bosonic Dephasing Channel
Entropy, 2023 We study the LOCC-assisted quantum capacity of a bosonic dephasing channel with energy constraint on the input states. We start our analysis by focusing on the energy-constrained squashed entanglement of the channel, which is an upper bound for the ...
Amir Arqand +2 more
doaj +1 more source
Quantum channels and their entropic characteristics [PDF]
Reports 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
Advanced 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
Volume of the space of qubit-qubit channels and state transformations under random quantum channels [PDF]
Reviews in Mathematical Physics, 30(10), 1850019. (2018), 2017 The simplest building blocks for quantum computations are the qubit-qubit quantum channels. In this paper, we analyze the structure of these channels via their Choi representation. The restriction of a quantum channel to the space of classical states (i.e. probability distributions) is called the underlying classical channel.
arxiv +1 more source
Strong Converse Exponents for a Quantum Channel Discrimination Problem and Quantum-Feedback-Assisted Communication [PDF]
Communications in Mathematical Physics, 2014 This paper studies the difficulty of discriminating between an arbitrary quantum channel and a “replacer" channel that discards its input and replaces it with a fixed state.
T. Cooney, M. Mosonyi, M. Wilde
semanticscholar +1 more source
Advanced 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
Optimisation of the routing protocol for quantum wireless Ad Hoc network
IET 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
Channel Polarization of Two-dimensional-input Quantum Symmetric Channels [PDF]
arXiv, 2021 Being attracted by the property of classical polar code, researchers are trying to find its analogue in quantum fields, which is called quantum polar code. The first step and the key to design quantum polar code is to find out for the quantity which can measure the quality of quantum channels, whether there is a polarization phenomenon which is similar
arxiv
Bounds on classical information capacities for a class of quantum memory channels [PDF]
Phys. Rev. A 71, 034310 (2005), 2003 The maximum rates for information transmission through noisy quantum channels has primarily been developed for memoryless channels, where the noise on each transmitted state is treated as independent. Many real world communication channels experience noise which is modelled better by errors that are correlated between separate channel uses.
arxiv +1 more source
Strong Converse Exponent for Classical-Quantum Channel Coding [PDF]
Communications in Mathematical Physics, 2014 We determine the exact strong converse exponent of classical-quantum channel coding, for every rate above the Holevo capacity. Our form of the exponent is an exact analogue of Arimoto’s, given as a transform of the Rényi capacities with parameters α>1 ...
M. Mosonyi, T. Ogawa
semanticscholar +1 more source