Results 21 to 30 of about 2,245 (174)

Quantum Two-Way Protocol Beyond Superdense Coding: Joint Transfer of Data and Entanglement

open access: goldIEEE Transactions on Quantum Engineering
In this article, we introduce a generalization of one-way superdense coding to two-way communication protocols for transmitting classical bits by using entangled quantum pairs.
Kristian S. Jensen   +4 more
doaj   +2 more sources

Role of complementarity in superdense coding [PDF]

open access: yesPhysical Review A, 2013
The complementarity of two observables is often captured in uncertainty relations, which quantify an inevitable tradeoff in knowledge. Here we study complementarity in the context of an information processing task: we link the complementarity of two ...
Coles, Patrick J.
core   +2 more sources

Probabilistic superdense coding [PDF]

open access: greenPhysical Review A, 2005
We explore the possibility of performing super dense coding with non-maximally entangled states as a resource. Using this we find that one can send two classical bits in a probabilistic manner by sending a qubit. We generalize our scheme to higher dimensions and show that one can communicate 2log_2 d classical bits by sending a d-dimensional quantum ...
Arun Kumar Pati   +2 more
openalex   +4 more sources

Absolutely Secure Distributed Superdense Coding: Entanglement Requirement for Optimality [PDF]

open access: greenPhysica Scripta, 2021
Abstract Superdense coding uses entanglement as a resource to communicate classical information efficiently through quantum channels. A superdense coding method is optimal when its capacity reaches Holevo bound. We show that for optimality, maximal entanglement is a necessity across the bipartition of Alice and Bob, but neither absolute ...
Sagnik Dutta   +2 more
openalex   +3 more sources

Superdense Coding with Uniformly Accelerated Particle [PDF]

open access: greenInternational Journal of Theoretical Physics, 2016
We study superdense coding with uniformly accelerated particle in single mode approximation and beyond single mode approximation. We use four different functions, the capacity of superdense coding, negativity, discord and the probability of success for evaluating the final results. In single mode approximation, all the four functions behave as expected,
Mehrnoosh Farahmand   +3 more
openalex   +4 more sources

Entanglement Witness Derived from NMR Superdense Coding [PDF]

open access: greenJournal of Physics A: Mathematical and General, 2004
We show that it is possible to transfer two-bit information via encoding a single qubit in a conventional nuclear magnetic resonance (NMR) experiment with two very weakly polarized nuclear spins. Nevertheless, the experiment can not be regarded as a demonstration of superdense coding by means of NMR because it is based on the large number of molecules ...
Robabeh Rahimi   +3 more
openalex   +4 more sources

Superdense coding using multipartite states [PDF]

open access: green, 2004
We show that with the fourpartite quantum channel used to teleport an arbitrary two qubit state, we can construct a superdense coding protocol where it is possible to transmit 4 bits of classical information sending only 2 qubits. Alice and Bob initially share a four qubit maximally entangled state and by locally manipulating her two qubits Alice can ...
Gustavo Rigolin
openalex   +3 more sources

Topological Quantum Teleportation and Superdense Coding -- Without Braiding [PDF]

open access: green, 2023
33 pages, 2 animations; content reorganised, and instead give an alternative derivation of braided protocols for Ising anyons (as corollary to braid-free versions)
Sachin J. Valera
openalex   +3 more sources

Rigidity of superdense coding

open access: greenACM Transactions on Quantum Computing, 2020
The famous superdense coding protocol of Bennett and Wiesner demonstrates that it is possible to communicate two bits of classical information by sending only one qubit and using a shared EPR pair. Our first result is that an arbitrary protocol for achieving this task (where there are no assumptions on the sender’s encoding operations or ...
Ashwin Nayak, Henry Yuen
openalex   +3 more sources

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