Results 11 to 20 of about 29,458 (256)
Quantum Teleportation and Dense Coding in Multiple Bosonic Reservoirs
Entropy, 2022 The effect of a reservoir on quantum communication depends on its spectral density. The efficiency of quantum teleportation and dense coding is explored when each one of the channel qubits is coupled simultaneously to multiple bosonic reservoirs.
Yu Wang, Ming-Liang Hu
doaj +5 more sources
Quantum Advantages of Teleportation and Dense Coding Protocols in an Open System
Mathematics, 2023 Quantum teleportation and dense coding are well-known quantum protocols that have been widely explored in the field of quantum computing. In this paper, the efficiency of quantum teleportation and dense coding protocols is examined in two-level atoms ...
Saeed Haddadi +4 more
doaj +3 more sources
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
doaj +2 more sources
Results in Physics, 2022 We investigate measurement uncertainty of two incompatible observables, dense coding capacity, teleportation fidelity, and quantum Fisher information for two qubits traversing sequentially a dephasing channel modeled by the multimode bosonic field. Using
Yu-Hang Sun, Yu-Xia Xie
doaj +3 more sources
Quantum dense coding over Bloch channels
, 2010 Dynamics of coded information over Bloch channels is investigated for different values of the channel's parameters. We show that, the suppressing of the travelling coded information over Bloch channel can be increased by decreasing the equilibrium ...
Ban M +11 more
core +2 more sources
Quantum Dense Coding Exploiting Bright EPR Beam [PDF]
, 2001 Highly efficient quantum dense coding for continuous variables has been experimentally accomplished by means of exploiting bright EPR beam with anticorrelation of amplitude quadratures and correlation of phase quadratures, which is generated from a ...
A. Barenco +34 more
core +3 more sources
Quantum dense coding by spatial state entanglement [PDF]
Physics Letters A, 2003 We have presented a theoretical extended version of dense coding protocol using entangled position state of two particles shared between two parties.
A.T. Rezakhani +23 more
core +3 more sources
Multipartite entanglement measures: A review. [PDF]
Fundam ResQuantum entanglement, a fundamental aspect of quantum mechanics, has captured significant attention in the era of quantum information science. In multipartite quantum systems, entanglement plays a crucial role in facilitating various quantum information ...
Ma M, Li Y, Shang J.
europepmc +2 more sources
Dense-Coding Attack on Three-Party Quantum Key Distribution Protocols [PDF]
IEEE Journal of Quantum Electronics, 2011 Cryptanalysis is an important branch in the study of cryptography, including both the classical cryptography and the quantum one. In this paper we analyze the security of two three-party quantum key distribution protocols (QKDPs) proposed recently, and ...
Gao, Fei +3 more
core +3 more sources
Multi-Receiver Quantum Dense Coding with Non-Symmetric Quantum Channel
, 2006 A two-receiver quantum dense coding scheme and an $N$-receiver quantum dense coding scheme, in the case of non-symmetric Hilbert spaces of the particles of the quantum channel, are investigated in this paper.
Barenco A +16 more
core +2 more sources