Results 91 to 100 of about 2,494,307 (343)

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

A Van Benthem Characterization Result for Distribution-Free Logics

open access: yesLogics
This article contributes to recent results in the model theory of distribution-free logics (which include a Goldblatt-Thomason theorem and a development of their Sahlqvist theory) by lifting van Benthem’s characterization result for modal logic to the ...
Chrysafis Hartonas
doaj   +1 more source

Quantum Locality?

open access: yes, 2011
Robert Griffiths has recently addressed, within the framework of a 'consistent quantum theory' that he has developed, the issue of whether, as is often claimed, quantum mechanics entails a need for faster-than-light transfers of information over long ...
A. Fine   +6 more
core   +2 more sources

A proof of the weak gravity conjecture [PDF]

open access: yes, 2017
The weak gravity conjecture suggests that, in a self-consistent theory of quantum gravity, the strength of gravity is bounded from above by the strengths of the various gauge forces in the theory. In particular, this intriguing conjecture asserts that in
S. Hod
semanticscholar   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 more
wiley   +1 more source

A note on the geometry of hypermultiplets in the field theory of intersecting D3-branes

open access: yesNuclear Physics B
We study the Kähler geometry of the hypermultiplet moduli space in the effective field theory of two intersecting D3-branes from the viewpoint of the classical RG flow equation governing the running of the Kähler potential defining the theory. We analyze
Reza Abbaspur
doaj   +1 more source

Deformation of Algebra Factorisations

open access: yes, 1999
A general deformation theory of algebras which factorise into two subalgebras is studied. It is shown that the classification of deformations is related to the cohomology of a certain double complex reminiscent of the Gerstenhaber-Schack complex of a ...
Brzezinski, Tomasz
core   +3 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Insights on deflation theory

open access: yesBrazilian Journal of Political Economy
Irving Fisher offered a ‘tentative’ debt-deflation theory of great depressions rather than a fully consistent theory of his ‘creed’: “I say ‘creed’ because, for brevity, it is purposely expressed dogmatically and without proof.
ANGEL ASENSIO
doaj   +1 more source

Security of differential phase shift QKD from relativistic principles [PDF]

open access: yesQuantum
The design of quantum protocols for secure key generation poses many challenges: On the one hand, they need to be practical concerning experimental realisations.
Martin Sandfuchs   +3 more
doaj   +1 more source

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