Results 21 to 30 of about 1,096,615 (330)

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   +2 more sources

Deep quantum neural networks on a superconducting processor

open access: yesNature Communications, 2023
Deep learning and quantum computing have achieved dramatic progresses in recent years. The interplay between these two fast-growing fields gives rise to a new research frontier of quantum machine learning.
Xiaoxuan Pan   +12 more
doaj   +1 more source

Quantum simulation for topological Euler insulators

open access: yesCommunications Physics, 2022
A new class of topological systems has been recently discovered, it has been dubbed the Euler insulator and can manifest in two-dimensional systems. The authors present an experimental implementation for realizing the Euler insulator with 171Yb+ ion ...
Wending Zhao   +11 more
doaj   +1 more source

Quantum Information and Entropy [PDF]

open access: yes, 2006
Thermodynamic entropy is not an entirely satisfactory measure of information of a quantum state. This entropy for an unknown pure state is zero, although repeated measurements on copies of such a pure state do communicate information. In view of this, we
A. C. Elitzur   +5 more
core   +3 more sources

Quantum Information and Randomness [PDF]

open access: yesEuropean Review, 2010
8 pages, 3 ...
Johannes Kofler, Anton Zeilinger
openaire   +3 more sources

Observation of a quantum phase transition in the quantum Rabi model with a single trapped ion

open access: yesNature Communications, 2021
Quantum phase transition occurs in many-body systems with abrupt changes in the ground state around zero temperature. Here the authors report signatures of quantum phase transition in single trapped ion that can be described using quantum Rabi model.
M.-L. Cai   +9 more
doaj   +1 more source

Hybrid quantum information processing [PDF]

open access: yes, 2014
The development of quantum information processing has traditionally followed two separate and not immediately connected lines of study. The main line has focused on the implementation of quantum bit (qubit) based protocols whereas the other line has been
Andersen, Ulrik L.   +3 more
core   +2 more sources

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   +3 more sources

Quantum data processing and error correction [PDF]

open access: yes, 1996
This paper investigates properties of noisy quantum information channels. We define a new quantity called {\em coherent information} which measures the amount of quantum information conveyed in the noisy channel.
A. Wehrl   +14 more
core   +3 more sources

Persistence of quantum information [PDF]

open access: yesPhysics Letters A, 2007
There is an increasing interest in the role of macroscopic environments to our understanding of the basics of quantum theory. The knowledge of the implications of the quantum theory to other theories, especially to the statistical mechanics and the domain of validity has captivated scientists from the beginning of quantum description. In such a context,
Schulz, Michael, Trimper, Steffen
openaire   +2 more sources

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