Results 31 to 40 of about 96,137 (178)

Quantum Generalized Reed-Solomon codes

open access: yesActa Physica Sinica, 2008
We construct a family of quantum error-correcting codes with parameters [[n,n-2k,k+1]]q which are defined in q-dimensional quantum systems,where q is an arbitrary prime power. These codes are optimal in the sense that the minimum distance is maximal. It is shown that codes exist for all n satisfying 2≤n≤q or q2-q+2≤n≤q2.
null Li Zhuo, null Xing Li-Juan
openaire   +1 more source

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

Coding Theorems for Quantum Channels [PDF]

open access: yes, 1998
The more than thirty years old issue of the (classical) information capacity of quantum communication channels was dramatically clarified during the last years, when a number of direct quantum coding theorems was discovered.
Holevo, Alexander S.
core   +3 more sources

Quantum convolutional coding with shared entanglement: general structure [PDF]

open access: yesQuantum Information Processing, 2010
We present a general theory of entanglement-assisted quantum convolutional coding. The codes have a convolutional or memory structure, they assume that the sender and receiver share noiseless entanglement prior to quantum communication, and they are not restricted to possess the Calderbank-Shor-Steane structure as in previous work.
Wilde, Mark M., Brun, Todd A.
openaire   +2 more sources

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

Experimental Implementation of a Concatenated Quantum Error-Correcting Code [PDF]

open access: yes, 2004
Concatenated coding provides a general strategy to achieve the desired level of noise protection in quantum information storage and transmission. We report the implementation of a concatenated quantum error-correcting code able to correct against phase ...
A. M. Steane   +6 more
core   +1 more source

Dynamic Resource Scheduling Optimization With Network Coding for Multi-User Services in the Internet of Vehicles

open access: yesIEEE Access, 2020
For Internet of Vehicles (IoV) systems with multiple users, network coding can be introduced to provide efficient error control and throughput improvement services. However, if the heterogeneity characteristics and requirements of the end users (vehicles)
Chen Huang   +3 more
doaj   +1 more source

Quantum Walks, Quantum Gates and Quantum Computers [PDF]

open access: yes, 2007
The physics of quantum walks on graphs is formulated in Hamiltonian language, both for simple quantum walks and for composite walks, where extra discrete degrees of freedom live at each node of the graph.
A. Ambainis   +11 more
core   +2 more sources

Quantum soundness of testing tensor codes

open access: yesDiscrete Analysis, 2022
Quantum soundness of testing tensor codes, Discrete Analysis 2022:17, 73 pp. This paper proves an essential component of a major recent result in complexity theory, known as the MIP*=RE theorem, which was proved by the same authors.
Zhengfeng Ji   +4 more
doaj   +1 more source

Quantum generalized Reed-Solomon codes: Unified framework for quantum maximum-distance-separable codes [PDF]

open access: yesPhysical Review A, 2008
We construct a family of quantum maximum-distance-separable (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, Li-Juan Xing, Xin-Mei Wang
openaire   +1 more source

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