Results 91 to 100 of about 1,201 (210)

Gouy Phase Induced Optical Skyrmion Transformation in Diffraction Limited Scale

open access: yesLaser &Photonics Reviews, Volume 19, Issue 2, January 22, 2025.
The tight focusing of the incident skyrmionic beams will produce topology transformations between the incident and the corresponding focused beams. The Gouy phase plays a key role in such transformations, which is related to the orbital angular momentum carried by the high order Laguerre–Gaussian mode in the skyrmionic beam.
Jian Chen   +3 more
wiley   +1 more source

The proton microscopic optical potential based on Skyrme interaction

open access: yes, 2018
The proton microscopic optical potential (MOP) based on Skyrme interaction has been achieved by the Green function method in the nuclear matter, and given by the local density approximation (LDA) for finite nuclei.
Yinlu Han, Qingbiao Shen, Yongli Xu
core   +1 more source

Mean-field description of fusion barriers with Skyrme's interaction [PDF]

open access: yesNuclear Physics A, 2003
7 pages, latex, 5 ...
Dobrowolski, A.   +2 more
openaire   +2 more sources

Contextual Admissions: Normative Considerations

open access: yesHigher Education Quarterly, Volume 79, Issue 1, January 2025.
ABSTRACT Access to higher education is often competitive, and much attention has been placed on the question of admission decision‐making in such high stakes situations. We identify various approaches to distributive justice and consider these under the framework developed by Pike distinguishes between ‘egalitaria’ (everyone gets the same); ‘necessitia’
Joanne Moore, Anna Mountford‐Zimdars
wiley   +1 more source

Learning from positive deviants in fisheries

open access: yesFish and Fisheries, Volume 25, Issue 3, Page 409-428, May 2024.
Sustainable fishing is linked to ecological and human factors. We were curious to find out which factors are most important in predicting the health of fish stocks in Canada. We also investigated the outliers—stocks doing better or worse than expected—to see how to improve the management of underperforming fisheries.
Laurenne Schiller   +3 more
wiley   +1 more source

Non-derivative axionic couplings to nucleons at large and small N

open access: yesJournal of High Energy Physics, 2020
Among the possible CP-odd couplings of the axion to ordinary matter, the most relevant ones for phenomenology are the Yukawa couplings to nucleons. We analyze such non-derivative couplings within three different approaches: standard effective field ...
Francesco Bigazzi   +3 more
doaj   +1 more source

THE SKYRME MODEL AND STRONG-INTERACTIONS (TO THE 30TH ANNIVERSARY OF THE SKYRME MODEL)

open access: yes, 2020
In the review article we sum up the results of development of Skyrme's solitonic approach in the baryon structure description. Contrary to the already existing literature in the field we pay a special tribute not to pragmatical aspects or the model, but rather to initial ideas, deep topological content and to such delicate problems as an existence or ...
MAHANKOV V.G.   +3 more
openaire   +1 more source

Velocity dependence of the Skyrme interaction

open access: yesPhysics Letters B, 1975
Abstract The role of the velocity dependence in the Skyrme interaction is studied. A higher order term is introduced to improve the level density near the fermi level in 208 Pb and to yield the dipole state in 208 Pb closer to the experimental position. Landau parameters are reported.
openaire   +1 more source

Tightly focused optical skyrmions and merons formed by electric‐field vectors with prescribed characteristics

open access: yesNanophotonics, Volume 13, Issue 2, Page 251-261, January 2024.
Abstract Optical skyrmions, which are topological quasi‐particles with nontrivial electromagnetic textures, have garnered escalating research interest recently for their potential in diverse applications. In this paper, we present a method for generating tightly focused optical skyrmion and meron topologies formed by electric‐field vectors under 4π ...
Yongxi Zeng   +4 more
wiley   +1 more source

Skyrme's interaction in the asymptotic basis

open access: yesJournal de Physique, 1972
Matrix elements of the two-body, three-body and spin-orbit parts of Skyrme's interaction are calculated analytically in the asymptotic basis. These matrix elements only involve combinations of some simple functions which makes their numerical evaluation rather easy.
openaire   +1 more source

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