Results 41 to 50 of about 29,458 (256)
Continuous-variable dense coding via a general Gaussian state: Monogamy relation [PDF]
, 2014 We study a continuous variable (CV) dense-coding protocol, originally proposed to employ a two-mode squeezed state, using a general two-mode Gaussian state as a quantum channel.
Ji, Se-Wan +3 more
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Optimal dense coding with mixed state entanglement [PDF]
, 2000 I investigate dense coding with a general mixed state on the Hilbert space $C^{d}\otimes C^{d}$ shared between a sender and receiver. The following result is proved.
+6 more
core +2 more sources
Connectomes and properties of quantum entanglement
Journal of High Energy Physics, 2023 Topological quantum field theories (TQFT) encode properties of quantum states in the topological features of abstract manifolds. One can use the topological avatars of quantum states to develop intuition about different concepts and phenomena of quantum ...
Dmitry Melnikov
doaj +1 more source
Continuous-Variable Arbitrated Quantum Signature Based on Dense Coding and Teleportation
IEEE Access, 2019 Motivated by the dense coding and teleportation of two-mode squeezed vacuum (TMSV) state, a continuous-variable arbitrated quantum signature (CV-AQS) scheme is proposed.
Xiaoping Lou +4 more
doaj +1 more source
All Teleportation and Dense Coding Schemes [PDF]
, 2000 We establish a one-to-one correspondence between (1) quantum teleportation schemes, (2) dense coding schemes, (3) orthonormal bases of maximally entangled vectors, (4) orthonormal bases of unitary operators with respect to the Hilbert-Schmidt scalar ...
Agaian S S +12 more
core +3 more sources
Two instances of random access code in the quantum regime
New Journal of Physics, 2023 We consider two classes of quantum generalisations of random access code (RAC) and study the bounds for probabilities of success for such tasks. It provides a useful framework for the study of certain information processing tasks with constrained ...
Nitica Sakharwade +3 more
doaj +1 more source
Quantum Teleportation and Super-Dense Coding in Operator Algebras [PDF]
International Mathematics Research Notices, 2019 Abstract We show for any $d,m\ge 2$ with $(d,m)\neq (2,2)$, the matrix-valued generalization of the (tensor product) quantum correlation set of $d$ inputs and $m$ outputs is not closed. Our argument uses a reformulation of super-dense coding and teleportation in terms of $C^*$-algebra isomorphisms.
Gao, Li +2 more
openaire +2 more sources
Interplays between classical and quantum entanglement-assisted communication scenarios
New Journal of Physics, 2023 Prepare-and-measure scenarios ( pm ), in their many forms, can be seen as the basic building blocks of communication tasks. As such, they can be used to analyze a diversity of classical and quantum protocols—of which dense coding and random access codes ...
Carlos Vieira +3 more
doaj +1 more source
Correlations in Entanglement-Assisted Prepare-and-Measure Scenarios
PRX 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
Superdense Coding Using Higher Dimensional Embedding
EntropyQuantum dense coding is a foundational protocol in quantum communication, allowing two classical bits to be transmitted by sending a single qubit when a maximally entangled pair is shared.
Elio Thadhani +4 more
doaj +1 more source