Results 71 to 80 of about 1,516,017 (282)

Classical wave-optics analogy of quantum information processing [PDF]

open access: yes, 2001
An analogous model system for quantum information processing is discussed, based on classical wave optics. The model system is applied to three examples that involve three qubits: ({\em i}) three-particle Greenberger-Horne-Zeilinger entanglement, ({\em ...
A. Aspect   +39 more
core   +2 more sources

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

open access: yesAdvanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri   +6 more
wiley   +1 more source

Quantifying entanglement for unknown quantum states via artificial neural networks

open access: yesScientific Reports
Quantum entanglement acts as a crucial part in quantum computation and quantum information, hence quantifying unknown entanglement is an important task. Due to the fact that the amount of entanglement cannot be achieved directly by measuring any physical
Guo-Zhu Pan   +5 more
doaj   +1 more source

Estimation of the Influence of a Noisy Environment on the Binary Decision Strategy in a Quantum Illumination Radar

open access: yesSensors, 2022
A quantum illumination radar uses quantum entanglement to enhance photodetection sensitivity. The entanglement is quickly destroyed by the decoherence in an environment, although the sensitivity enhancement could survive thanks to quantum correlations ...
Sylvain Borderieux   +2 more
doaj   +1 more source

Entanglement Availability Differentiation Service for the Quantum Internet

open access: yes, 2018
A fundamental concept of the quantum Internet is quantum entanglement. In a quantum Internet scenario where the legal users of the network have different priority levels or where a differentiation of entanglement availability between the users is a ...
Gyongyosi, Laszlo, Imre, Sandor
core   +1 more source

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

open access: yesAdvanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina   +11 more
wiley   +1 more source

Combined Physical- and Link-Layer Protocols for Quantum Networks

open access: yesIEEE Transactions on Quantum Engineering
Future communication systems are expected to integrate quantum networks to enable highly secure communication and enhance computational capabilities.
Benedikt Baier   +4 more
doaj   +1 more source

Time-invariant entanglement and sudden death of nonlocality for multipartite systems under collective dephasing

open access: yes, 2017
We investigate the dynamics of entanglement and nonlocality for multipartite quantum systems under collective dephasing. Using an exact and computable measure for genuine entanglement, we demonstrate the possibility of a non trivial phenomenon of time ...
Ali, Mazhar
core   +1 more source

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

Entanglement classification via neural network quantum states

open access: yesNew Journal of Physics, 2020
The task of classifying the entanglement properties of a multipartite quantum state poses a remarkable challenge due to the exponentially increasing number of ways in which quantum systems can share quantum correlations.
Cillian Harney   +3 more
doaj   +1 more source

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