Results 111 to 120 of about 4,583,269 (264)

Analysis of Randomization Capacity in Quantum Noise Randomized Cipher System

open access: yesPhotonics
We propose and verify a method for analyzing the randomization capacity in a 160 km quantum noise randomized cipher system with different data modulation formats. The randomization capacity is defined as the difference in mutual information between Alice
Mingrui Zhang   +5 more
doaj   +1 more source

Information Geometric Superactivation of Asymptotic Quantum Capacity and Classical Zero-Error Capacity of Zero-Capacity Quantum Channels [PDF]

open access: yesarXiv, 2012
The superactivation of zero-capacity quantum channels makes it possible to use two zero-capacity quantum channels with a positive joint capacity at the output. Currently, we have no theoretical background for describing all possible combinations of superactive zero-capacity channels; hence, there may be many other possible combinations.
arxiv  

The Entanglement-Assisted Communication Capacity over Quantum Trajectories [PDF]

open access: yesarXiv, 2021
The unique and often-weird properties of quantum mechanics allow an information carrier to propagate through multiple trajectories of quantum channels simultaneously. This ultimately leads us to quantum trajectories with an indefinite causal order of quantum channels.
arxiv  

Performance Analysis of Quantum Based Cloud Radio Access Networks

open access: yesIEEE Access, 2020
Quantum computing can provide a solution for many problems that classical communication networks encounter, but the knowledge gap between these two is not bridged yet.
Basit N. A. Khalif   +3 more
doaj   +1 more source

Average capacity of quantum entanglement

open access: yesJournal of Physics A: Mathematical and Theoretical, 2023
Abstract As an alternative to entanglement entropies, the capacity of entanglement becomes a promising candidate to probe and estimate the degree of entanglement of quantum bipartite systems. In this work, we study the statistical behavior of entanglement capacity over major models of random states.
openaire   +2 more sources

Experimental quantification of entanglement through heat capacity

open access: yesNew Journal of Physics, 2013
A new experimental realization of heat capacity as an entanglement witness is reported. Entanglement properties of a low–dimensional quantum spin system are investigated by heat capacity measurements performed down to very low temperatures (400 mK), for ...
H Singh   +6 more
doaj   +1 more source

Zero-error capacity of a quantum channel [PDF]

open access: yesIJQI, vol. 3(1), pp.135-139, 2005., 2004
We define the quantum zero-error capacity, a new kind of classical capacity of a noisy quantum channel. Moreover, the necessary requirement for which a quantum channel has zero-error capacity greater than zero is also given.
arxiv  

Post-quantum cryptography Algorithm's standardization and performance analysis

open access: yesArray, 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  

Entangling and disentangling capacities of nonlocal maps [PDF]

open access: yesarXiv, 2007
Entangling and disentangling capacities are the key manifestation of the nonlocal content of a quantum operation. A lot of effort has been put recently into investigating (dis)entangling capacities of unitary operations, but very little is known about capacities of non-unitary operations.
arxiv  

Capacities of classical compound quantum wiretap and classical quantum compound wiretap channels [PDF]

open access: yesarXiv, 2012
We determine the capacity of the classical compound quantum wiretapper channel with channel state information at the transmitter. Moreover we derive a lower bound on the capacity of this channel without channel state information and determine the capacity of the classical quantum compound wiretap channel with channel state information at the ...
arxiv  

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