Results 71 to 80 of about 378,715 (336)

First‐Principles Modeling of Solid Solution Softening and Hardening Effects in Al–Mg–Zr–Si Aluminum Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay   +3 more
wiley   +1 more source

Quantum Entanglement Capacity with Classical Feedback

open access: yes, 2007
For any quantum discrete memoryless channel, we define a quantity called quantum entanglement capacity with classical feedback ($E_B$), and we show that this quantity lies between two other well-studied quantities.
A. W. Leung   +5 more
core   +1 more source

Entanglement-assisted communication of classical and quantum information [PDF]

open access: yes, 2010
We consider the problem of transmitting classical and quantum information reliably over an entanglement-assisted quantum channel. Our main result is a capacity theorem that gives a three-dimensional achievable rate region.
Hsieh, Min-Hsiu, Wilde, Mark M.
core   +3 more sources

The Roles of a Quantum Channel on a Quantum State [PDF]

open access: yesInternational Journal of Theoretical Physics, 2013
When a quantum state undergoes a quantum channel, the state will be inevitably influenced. In general, the fidelity of the state is reduced, so is the entanglement if the sub- systems go through the channel. However, the influence on the coherence of the state is quite different.
Chang-shui Yu, Lin Wang
openaire   +3 more sources

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun   +7 more
wiley   +1 more source

Approximating Decoherence Processes for the Design and Simulation of Quantum Error Correction Codes on Classical Computers

open access: yesIEEE Access, 2020
Quantum information is prone to suffer from errors caused by the so-called decoherence, which describes the loss in coherence of quantum states associated to their interactions with the surrounding environment.
Josu Etxezarreta Martinez   +3 more
doaj   +1 more source

Protecting nonlocal quantum correlations in correlated squeezed generalized amplitude damping channel

open access: yesScientific Reports, 2022
Nonlocal quantum correlations, such as quantum entanglement, quantum steering, and Bell nonlocality, are crucial resources for quantum information tasks.
Shuo Wang   +6 more
doaj   +1 more source

Describing a Quantum Channel by State Tomography of a Single Probe State

open access: yes, 2009
A general law is presented for (composite) quantum systems which directly describes the time evolution of quantum states (with one or both components) through an arbitrary noisy quantum channel.
Song, He-shan, Yu, Chang-shui
core   +1 more source

Asymmetric quantum channel for quantum teleportation [PDF]

open access: yesPhysical Review A, 2001
There are a few obstacles, which bring about imperfect quantum teleportation of a continuous variable state, such as unavailability of maximally entangled two-mode squeezed states, inefficient detection and imperfect unitary transformation at the receiving station.
Jinhyoung Lee   +2 more
openaire   +3 more sources

Deciphering the Origin of Higher Shell Coordination on Single Iron Catalysts for Resilient Modulating Persulfate Oxidation Into Singlet Oxygen Pathway

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reveals that higher shell S coordination can effectively modulate the spin state of FeN4 site via long‐range electronic interactions, giving rise to the oriented generation of singlet oxygen from peroxymonosulfate activation. Abstract Precise manipulation of coordination structure of single‐atom sites and establishment of schematic ...
Liang Zhang   +8 more
wiley   +1 more source

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