Results 231 to 240 of about 29,458 (256)
Some of the next articles are maybe not open access.
Non-Equilibrium Dynamics of Quantum Dense Coding Process
Journal of the Physical Society of Japan, 2004Summary: The theory of quantum mechanical communication channel under the influence of environmental fluctuations is formulated on the basis of non-equilibrium statistical mechanics. The formalism is explicitly applied to the quantum dense coding process where a qubit signal is sent into the channel in which the temperature and/or quantum fluctuations ...
Yonemura, Tomoko +2 more
openaire +1 more source
2015
Quantum information theory distinguishes classical bits from quantum bits or qubits. The quantum state of n qubits is represented by a complex vector in .C2/ n, where .C2/ n is the tensor product of n 2-dimensional complex vector spaces. Classical n-bit strings form a basis for the vector space .C2/ n.
openaire +1 more source
Quantum information theory distinguishes classical bits from quantum bits or qubits. The quantum state of n qubits is represented by a complex vector in .C2/ n, where .C2/ n is the tensor product of n 2-dimensional complex vector spaces. Classical n-bit strings form a basis for the vector space .C2/ n.
openaire +1 more source
Polarization-entangled Photons and Quantum Dense Coding
Optics and Photonics News, 1996A down-conversion source of truly polarization-entangled photons has been developed [1], much brighter and more stable than all previous sources. In type-II phase-matching, the correlated photons are emitted with orthogonal polarizations. In contrast to the more familiar case of type-I phase matching, the cones of the emitted light are not concentric ...
Paul G. Kwiat +3 more
openaire +1 more source
Multiqubit quantum dense coding
Theoretical and Natural ScienceMultipartite quantum-information transmission has been a key task for practice purposes and applications in the past decades. In this paper, we present a novel protocol for the multiqubit super dense coding, by using the Greenberger-Horne-Zeilinger (GHZ) states.
openaire +1 more source
A SCHEME FOR QUANTUM DENSE CODING IN CAVITY QED
International Journal of Modern Physics B, 2011Quantum mechanics allows one to encode the information in the superposition of a quantum state which embodies the nature of quantum nonlocality. Here we propose a realizable physical scheme for a multiparticle quantum dense coding (QDC) between two users in cavity quantum electrodynamics (QED).
Zou, Chang-Lin, Cao, Zhuo-Liang
openaire +2 more sources
Controlled Dense Coding with Non-Symmetric Quantum State
International Journal of Theoretical Physics, 2014zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Dynamics of Quantum Fluctuations in a Communication Channel –Quantum Dense Coding–
Journal of the Physical Society of Japan, 2004Summary: The dynamics of a quantum dense coding process is formulated and exactly solved on the basis of a boson detector model previously used to study decoherence processes. When classical information encoded in entangled states is transmitted through a quantum mechanical communication channel, an environment exerts quantum noise causing decoherence ...
openaire +2 more sources
2023 2nd International Conference on Computing, Communication, Perception and Quantum Technology (CCPQT), 2023
openaire +1 more source
openaire +1 more source
Quantum Teleportation and Quantum Dense Coding in a Finite-Dimensional Hilbert Space
International Journal of Theoretical Physics, 2003Irreducible unitary representations of compact (finite) groups describe quantum state transformations (quantum coding) and quantum measurements (quantum decoding). Teleportation and dense coding in a finite-dimensional Hilbert space are formulated in terms of an irreducible unitary representation of a compact group.
openaire +2 more sources
On Quantum Dense Coding for Bipartite Systems
Theoretical and Natural ScienceQuantum communication, as a vital area of quantum information science, aims to leverage quantum phenomenaparticularly entanglementto achieve tasks that are impossible or inefficient in classical systems. It plays a key role in the development of secure communication protocols and advanced information processing. This paper focuses on one such protocol,
openaire +1 more source