Results 21 to 30 of about 357,987 (308)
Generalized noiseless quantum codes utilizing quantum enveloping algebras [PDF]
Journal of Physics A: Mathematical and General, 2001 A generalization of the results of Rasetti and Zanardi concerning avoiding errors in quantum computers by using states preserved by evolution is presented. The concept of dynamical symmetry is generalized from the level of classical Lie algebras and groups to the level of dynamical symmetry based on quantum Lie algebras and quantum groups (in the sense
Đurđevich, Micho +2 more
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Dense Coding with Locality Restriction on Decoders: Quantum Encoders versus Superquantum Encoders
PRX Quantum, 2022 We investigate practical dense coding by imposing locality restrictions on decoders and symmetry restrictions on encoders within the resource theory of asymmetry framework.
Masahito Hayashi, Kun Wang
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Quantum coding with finite resources [PDF]
Nature Communications, 2015 The quantum capacity of a memoryless channel determines the maximal rate at which we can communicate reliably over asymptotically many uses of the channel.
M. Tomamichel, M. Berta, J. Renes
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CODES FOR KEY GENERATION IN QUANTUM CRYPTOGRAPHY [PDF]
International Journal of Quantum Information, 2005 As an alternative to the usual key generation by two-way communication in schemes for quantum cryptography, we consider codes for key generation by one-way communication. We study codes that could be applied to the raw key sequences that are ideally obtained in recently proposed scenarios for quantum key distribution, which can be regarded as ...
Englert, B.-G. +3 more
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Quantum Obfuscation of Generalized Quantum Power Functions with Coefficient
Entropy, 2023 Quantum obfuscation is one of the important primitives in quantum cryptography that can be used to enhance the security of various quantum cryptographic schemes.
Yazhuo Jiang +3 more
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Quantum Teleportation and Entanglement of the 5-Qubit State Over a GHZ-Like Channel
Tikrit Journal of Pure Science, 2023 Quantum information processing has a wide range of uses, including the solution of complex algorithms, cryptography, dense coding, quantum computation, and quantum teleportation.
Aseel Hamad +2 more
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Entanglement-assisted quantum communication with simple measurements [PDF]
Nature Communications, 2022 Quantifying communication capabilities produced by sharing an entangled qubit pair is still a subject of debate. Here the authors show that there are communication tasks for which sharing an entangled pair gives higher power than sharing two classical ...
A. Piveteau +5 more
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General Mixed State Quantum Data Compression with and without Entanglement Assistance [PDF]
International Symposium on Information Theory, 2019 We consider the most general (finite-dimensional) quantum mechanical information source, which is given by a quantum system A that is correlated with a reference system R. The task is to compress A in such a way as to reproduce the joint source state ρAR
Z. Khanian, A. Winter
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Simulation of Closed Timelike Curves in a Darwinian Approach to Quantum Mechanics
Universe, 2023 Closed timelike curves (CTCs) are non-intuitive theoretical solutions of general relativity field equations. The main paradox associated with the physical existence of CTCs, the so-called grandfather paradox, can be satisfactorily solved by a quantum ...
Carlos Baladrón, Andrei Khrennikov
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General Linear Group Action on Tensors: A Candidate for Post-Quantum Cryptography [PDF]
IACR Cryptology ePrint Archive, 2019 Starting from the one-way group action framework of Brassard and Yung (Crypto '90), we revisit building cryptography based on group actions. Several previous candidates for one-way group actions no longer stand, due to progress both on classical ...
Zhengfeng Ji +3 more
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