Results 11 to 20 of about 268,104 (280)

Measurement uncertainty and dense coding in a two-qubit system: Combined effects of bosonic reservoir and dipole–dipole interaction

open access: yesResults in Physics, 2022
The uncertainty principle imposes a limitation on the measurement accuracy of two incompatible observables and has potential applications in quantum information science.
Saeed Haddadi   +5 more
doaj   +3 more sources

Quantum Advantages of Teleportation and Dense Coding Protocols in an Open System

open access: yesMathematics, 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

Probabilistic Super Dense Coding [PDF]

open access: yesPhysical Review A, 2004
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.
A. K. Pati   +5 more
core   +2 more sources

Deterministic and Unambiguous Dense Coding [PDF]

open access: yesPhysical Review A, 2005
Optimal dense coding using a partially-entangled pure state of Schmidt rank $\bar D$ and a noiseless quantum channel of dimension $D$ is studied both in the deterministic case where at most $L_d$ messages can be transmitted with perfect fidelity, and in ...
K. Kraus   +8 more
core   +4 more sources

Deterministic Quantum Dense Coding Networks [PDF]

open access: yesPhysics Letters A, 2018
We consider the scenario of deterministic classical information transmission between multiple senders and a single receiver, when they a priori share a multipartite quantum state -- an attempt towards building a deterministic dense coding network ...
Chanda, Titas   +4 more
core   +4 more sources

All Teleportation and Dense Coding Schemes [PDF]

open access: yesJournal of Physics A: Mathematical and General, 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   +5 more sources

Dense coding with multipartite quantum states [PDF]

open access: yesInternational Journal of Quantum Information, 2005
We consider generalisations of the dense coding protocol with an arbitrary number of senders and either one or two receivers, sharing a multiparty quantum state, and using a noiseless channel.
ADITI SEN(DE)   +8 more
core   +4 more sources

Optimal probabilistic dense coding schemes [PDF]

open access: yesQuantum Information Processing, 2017
Dense coding with non-maximally entangled states has been investigated in many different scenarios. We revisit this problem for protocols adopting the standard encoding scheme.
Kögler, Roger Alfredo, Neves, Leonardo
core   +2 more sources

Dense coding for continuous variables [PDF]

open access: yesPhysical Review A, 2000
A scheme to achieve dense quantum coding for the quadrature amplitudes of the electromagnetic field is presented. The protocol utilizes shared entanglement provided by nondegenerate parametric down conversion in the limit of large gain to attain high efficiency.
Braunstein, Samuel L., Kimble, H. J.
openaire   +6 more sources

Deterministic entanglement-assisted quantum communication over 20 km fiber channel [PDF]

open access: yesLight: Science & Applications
Entanglement-assisted quantum communication has substantial advantages in surpassing the power of classical communication by utilizing the entangled state.
Siyu Ren   +7 more
doaj   +2 more sources

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