Results 51 to 60 of about 12,176,929 (371)

Quantum information to the home [PDF]

open access: yesNew Journal of Physics, 2011
A novel Raman-noise suppression scheme has enabled the first quantum key distribution (QKD) over a Gigabit-Ethernet PON carrying realistic data traffic. The DPSK-QKD system produced a sifted-key rate of 84kb/s with a Quantum-BER of 4%.
Choi, Iris   +2 more
openaire   +5 more sources

Entanglement-interference complementarity and experimental demonstration in a superconducting circuit

open access: yesnpj Quantum Information, 2023
Quantum entanglement between an interfering particle and a detector for acquiring the which-path information plays a central role for enforcing Bohr’s complementarity principle.
Xin-Jie Huang   +14 more
doaj   +1 more source

Quantum Computation and Quantum Information: Bibliography

open access: yes, 2010
Preface Acknowledgement Nomenclature and notation Part I. Fundamental Concepts: 1. Introduction and overview 2. Introduction to quantum mechanics 3. Introduction to computer science Part II. Quantum Computation: 4. Quantum circuits 5. The quantum Fourier
Nikolay Raychev, I. Chuang
semanticscholar   +1 more source

Quantum advantages for transportation tasks - projectiles, rockets and quantum backflow

open access: yesnpj Quantum Information, 2023
Consider a scenario where a quantum particle is initially prepared in some bounded region of space and left to propagate freely. After some time, we verify if the particle has reached some distant target region.
David Trillo   +2 more
doaj   +1 more source

Quantum Information Transfer between a Two-Level and a Four-Level Quantum System [PDF]

open access: yesPhoton. Res. 10, 2854-2865 (2022), 2020
Quantum mechanics provides a disembodied way to transfer quantum information from one quantum object to another. In theory, this quantum information transfer can occur between quantum objects of any dimension, yet the reported experiments of quantum information transfer to date have mainly focused on the cases where the quantum objects have the same ...
arxiv   +1 more source

Photonic quantum information processing: a review [PDF]

open access: yesReports on progress in physics. Physical Society, 2018
Photonic quantum technologies represent a promising platform for several applications, ranging from long-distance communications to the simulation of complex phenomena. Indeed, the advantages offered by single photons do make them the candidate of choice
Fulvio Flamini   +2 more
semanticscholar   +1 more source

Quantum-enhanced radiometry via approximate quantum error correction

open access: yesNature Communications, 2022
Exotic quantum states can be advantageous for sensing, but are very fragile, so that some form of quantum error correction is needed. Here, the authors show how approximate QEC helps overcoming decoherence due to noise when measuring the excitation ...
W. Wang   +14 more
doaj   +1 more source

Quantum Information Causality [PDF]

open access: yesPhysical Review Letters, 2013
How much information can a transmitted physical system fundamentally communicate? We introduce the principle of quantum information causality, which states the maximum amount of quantum information that a quantum system can communicate as a function of its dimension, independently of any previously shared quantum physical resources.
openaire   +4 more sources

Partial quantum information [PDF]

open access: yesNature, 2005
Information--be it classical or quantum--is measured by the amount of communication needed to convey it. In the classical case, if the receiver has some prior information about the messages being conveyed, less communication is needed. Here we explore the concept of prior quantum information: given an unknown quantum state distributed over two systems,
Horodecki, M, Oppenheim, J, Winter, AJ
openaire   +4 more sources

Relativistically invariant quantum information [PDF]

open access: yes, 2004
We show that quantum information can be encoded into entangled states of multiple indistinguishable particles in such a way that any inertial observer can prepare, manipulate, or measure the encoded state independent of their Lorentz reference frame ...
Daniel R. Terno   +4 more
core   +3 more sources

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