Results 21 to 30 of about 12,091 (250)

Correlations in Entanglement-Assisted Prepare-and-Measure Scenarios

open access: yesPRX Quantum, 2021
We investigate the correlations that can arise between Alice and Bob in prepare-and-measure communication scenarios where the source (Alice) and the measurement device (Bob) can share prior entanglement. The paradigmatic example of such a scenario is the
Armin Tavakoli   +3 more
doaj   +1 more source

Generalization of Steane's Enlargement Construction of Quantum Codes and Applications [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
We generalize Steane's enlargement construction of binary quantum codes to q-ary quantum codes. We then apply this result to BCH codes and the study of asymptotic bounds, and obtain improvements to the quantum BCH codes constructed by Aly and Klappenecker and the quantum asymptotic bounds from algebraic geometry codes obtained by Feng, Ling, and Xing.
San Ling, Jinquan Luo, Chaoping Xing
openaire   +2 more sources

Some New Classes of Entanglement-Assisted Quantum MDS Codes Derived From Constacyclic Codes

open access: yesIEEE Access, 2019
Although quantum maximal-distance-separable (MDS) codes that satisfy the quantum singleton bound have become an important research topic in the quantum coding theory, it is not an easy task to search for quantum MDS codes with the minimum distance that ...
Jianzhang Chen   +4 more
doaj   +1 more source

Quantum generalized Reed-Solomon codes: Unified framework for quantum MDS codes

open access: yesCoRR, 2008
We construct a new family of quantum MDS codes from classical generalized Reed-Solomon codes and derive the necessary and sufficient condition under which these quantum codes exist. We also give code bounds and show how to construct them analytically.
Zhuo Li 0007, Li-Juan Xing, Xinmei Wang
openaire   +2 more sources

Robust entanglement distribution via quantum network coding

open access: yesNew Journal of Physics, 2016
Many protocols of quantum information processing, like quantum key distribution or measurement-based quantum computation, ‘consume’ entangled quantum states during their execution.
Michael Epping   +2 more
doaj   +1 more source

Synchronization in Quantum Key Distribution Systems

open access: yesCryptography, 2017
In the description of quantum key distribution systems, much attention is paid to the operation of quantum cryptography protocols. The main problem is the insufficient study of the synchronization process of quantum key distribution systems.
Anton Pljonkin   +2 more
doaj   +1 more source

On the generalization of the construction of quantum codes from Hermitian self-orthogonal codes

open access: yesDesigns, Codes and Cryptography, 2022
AbstractMany q-ary stabilizer quantum codes can be constructed from Hermitian self-orthogonal $$q^2$$ q 2 -ary linear codes. This result can be generalized to $$q^{2 m}$$ q 2
Carlos Galindo 0001, Fernando Hernando
openaire   +3 more sources

Cacao (Theobroma cacao L.) Response to Water Stress: Physiological Characterization and Antioxidant Gene Expression Profiling in Commercial Clones

open access: yesFrontiers in Plant Science, 2021
The increase in events associated with drought constraints plant growth and crop performance. Cacao (Theobroma cacao L.) is sensitive to water deficit stress (DS), which limits productivity.
Mayra Andreina Osorio Zambrano   +3 more
doaj   +1 more source

Tight Bounds on the Simultaneous Estimation of Incompatible Parameters

open access: yesPhysical Review X, 2021
The estimation of multiple parameters in quantum metrology is important for a vast array of applications in quantum information processing. However, the unattainability of fundamental precision bounds for incompatible observables greatly diminishes the ...
Jasminder S. Sidhu   +3 more
doaj   +1 more source

Beating no-go theorems by engineering defects in quantum spin models

open access: yesNew Journal of Physics, 2015
Diverse no-go theorems exist, ranging from no-cloning to monogamies of quantum correlations and Bell inequality violations, which restrict the processing of information in the quantum world.
Debasis Sadhukhan   +4 more
doaj   +1 more source

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