Results 101 to 110 of about 74,976 (305)

Decoupling Light Absorption From Photocatalytic Reactivity in TiO2 via Defect and Interfacial Engineering

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid photoprotective material integrates N‐doped TiO2 with a metal‐phenolic network (MPN) to achieve broad‐spectrum attenuation and robust reactive oxygen species (ROS) suppression. Nitrogen doping extends attenuation into the UVA/high energy visible light (HEV) regions and facilitates fast charge recombination to inhibit ROS formation.
Saehan Choi   +9 more
wiley   +1 more source

Exploring quantum vacuum with low-energy photons [PDF]

open access: yes, 2012
Although quantum mechanics (QM) and quantum field theory (QFT) are highly successful, the seemingly simplest state – vacuum – remains mysterious. While the LHC experiments are expected to clarify basic questions on the structure of QFT vacuum, much can ...
C. CURCEANU   +29 more
core   +1 more source

Colour Information Loss due to Decoherence in Vacuum

open access: yesEPJ Web of Conferences, 2016
The model of stochastic vacuum of quantum chromodynamics might be used for an alternative treatment of subhadronic processes. The possibility of considering the stochastic vacuum as an environment for colour charges is discussed.
Kuvshinov Viatcheslav, Bagashov Eugene
doaj   +1 more source

Ultrawide Bandwidth Optomechanical Magnetometry Using Flux Concentration

open access: yesAdvanced Functional Materials, EarlyView.
High‐permeability flux concentrators enable ultrawide‐bandwidth chip‐scale optomechanical magnetometry by exploiting magnetic nonlinearity to up‐convert low‐frequency fields to the mechanical resonance, where sensitivity is optimal. This enables flat wideband operation over more than four orders of magnitude, from tens of kilohertz to sub‐hertz ...
Benjamin J. Carey   +6 more
wiley   +1 more source

The Dirac equation, the concept of quanta, and the description of interactions in quantum electrodynamics [PDF]

open access: yes, 2010
In this article the Dirac equation is used as a guideline to the historical emergence of the concept of quanta, associated with the quantum field.
bacelar valente, mario
core  

Spin decoherence and manipulation in quantum dots : the role of the spin-orbit interaction [PDF]

open access: yes, 2010
Solid state based quantum information processing is focused on physical implementation of all necessary elements of quantum computation and quantum information in solid state systems, mainly due to their scalability compared to e.g.
Borhani, Massoud
core   +1 more source

A Gaussian-Distributed Quantum Random Number Generator Using Vacuum Shot Noise [PDF]

open access: yes, 2020
Among all the methods of extracting randomness, quantum random number generators are promising for their genuine randomness. However, existing quantum random number generator schemes aim at generating sequences with a uniform distribution, which may not ...
Min Huang   +3 more
core   +1 more source

Mimicking Silent Synapse Recruitment: A SiOx/Cu‐Pancake Memristive Device For Analog Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
Electroforming‐free TiN/SiOx/Cu/SiOx/TiN memristive devices exploit pancake‐like Cu nanoparticles embedded in a SiOx double layer to create a heterogeneous Schottky‐barrier landscape. Under bias, oxygen‐vacancy redistribution progressively lowers local barriers and recruits initially inactive Cu‐PC pathways into a parallel conduction ensemble, enabling
Rouven Lamprecht   +10 more
wiley   +1 more source

Are Rindler Quanta Real? Inequivalent Particle Concepts in Quantum Field Theory [PDF]

open access: yes, 2000
Philosophical reflection on quantum field theory has tended to focus on how it revises our conception of what a particle is. However, there has been relatively little discussion of the threat to the "reality" of particles posed by the possibility of ...
Halvorson, Hans, Clifton, Rob
core  

A New Inflationary Universe Scenario with Inhomogeneous Quantum Vacuum

open access: yesAdvances in High Energy Physics, 2018
We investigate the quantum vacuum and find that the fluctuations can lead to the inhomogeneous quantum vacuum. We find that the vacuum fluctuations can significantly influence the cosmological inhomogeneity, which is different from what was previously ...
Yilin Chen, Jin Wang
doaj   +1 more source

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