Results 51 to 60 of about 352,049 (339)
Quantum Communication with Zero-Capacity Channels [PDF]
Science, 2008 Communication over a noisy quantum channel introduces errors in the transmission that must be corrected. A fundamental bound on quantum error correction is the quantum capacity, which quantifies the amount of quantum data that can be protected. We show theoretically that two quantum channels, each with a transmission capacity of zero, can have a ...
Smith, Graeme, Yard, Jon
openaire +3 more sources
Superadditivity of Private Information for Any Number of Uses of the Channel. [PDF]
, 2015 The quantum capacity of a quantum channel is always smaller than the capacity of the channel for private communication. Both quantities are given by the infinite regularization of the coherent and the private information, respectively, which makes their ...
Elkouss, David, Strelchuk, Sergii
core +6 more sources
Experimental Detection of Quantum Channel Capacities [PDF]
Physical Review Letters, 2017 5 pages and 3 figures in the principal article, and 4 pages in the supplementary ...
Cuevas, Álvaro +6 more
openaire +7 more sources
Zero-error Coding Method Based on Quantum Five-symbol Confusion Channel Model [PDF]
Jisuanji gongcheng, 2018 In view of the lack of effective coding schemes for quantum zero-error channel,based on the characteristics of quantum five-symbol confusion channel model and the theory of matrix theory,a coding method of five-symbol confusion channel combining quantum ...
LI Jingya,YU Wenbin,LIU Wenjie,WANG Jinwei
doaj +1 more source
Coherence requirements for quantum communication from hybrid circuit dynamics
SciPost Physics, 2023 The coherent superposition of quantum states is an important resource for quantum information processing which distinguishes quantum dynamics and information from their classical counterparts.
Shane P. Kelly, Ulrich Poschinger, Ferdinand Schmidt-Kaler, Matthew P. A. Fisher, Jamir Marino
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Quantum Capacity under Adversarial Quantum Noise: Arbitrarily Varying Quantum Channels [PDF]
Communications in Mathematical Physics, 2012 49 pages, no figures, final version of our papers arXiv:1010.0418v2 and arXiv:1010.0418.
Ahlswede, Rudolf +3 more
openaire +3 more sources
Physical Review X, 2023 The expressive capacity of physical systems employed for learning is limited by the unavoidable presence of noise in their extracted outputs. Though present in physical systems across both the classical and quantum regimes, the precise impact of noise on
Fangjun Hu +8 more
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Post-quantum cryptography Algorithm's standardization and performance analysis
Array, 2022 -Quantum computer is no longer a hypothetical idea. It is the world's most important technology and there is a race among countries to get supremacy in quantum technology.
Manish Kumar
doaj +1 more source
Advanced Engineering Materials, EarlyView.A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source
The Quantum Zeno Capacity and Dynamic Evolution Mode of a Quantum System
EntropyThe quantum Zeno effect (QZE) is widely employed in quantum engineering due to the issue of frequent measurements freezing a quantum system. In this study, the quantum Zeno factor is introduced to characterize the quantum Zeno capacity of a quantum ...
Zhenbo Ni, Yonggang Peng, Yujun Zheng
doaj +1 more source