Results 21 to 30 of about 9,766 (268)

Collective modes of vortex lattices in two-component Bose–Einstein condensates under synthetic gauge fields

open access: yesNew Journal of Physics, 2019
We study collective modes of vortex lattices in two-component Bose–Einstein condensates subject to synthetic magnetic fields in mutually parallel or antiparallel directions. By means of the Bogoliubov theory with the lowest-Landau-level approximation, we
Takumi Yoshino   +3 more
doaj   +1 more source

The phase structure of mixed lattice gauge theories

open access: yesNuclear Physics B, 1982
Abstract The mixed compact-non-compact U(1) model is shown to be equivalent to a compact U(1) Higgs model. It is argued that the mixed SO(3)-SU(2) model is dual to an SO(3) gauge theory coupled to a scalar field in the fundamental representation. The degrees of freedom are Z(2) monopoles and charges or, in a dual picture, monopoles and loops.
L. Caneschi, I.G. Halliday, A. Schwimmer
openaire   +1 more source

Neutrosophic Multigroups and Applications

open access: yesMathematics, 2019
In recent years, fuzzy multisets and neutrosophic sets have become a subject of great interest for researchers and have been widely applied to algebraic structures include groups, rings, fields and lattices.
Derya Bakbak   +2 more
doaj   +1 more source

Fuzzy Soft Sets and Fuzzy Soft Lattices [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2012
The theory of soft sets was introduced by Molodtsov in 1999 in order to deal with uncertainties. In this paper, the notion of fuzzy soft lattice is defined and some related properties are derived, which extends the notion of a fuzzy lattice to include ...
Yingchao Shao, Keyun Qin
doaj   +1 more source

Perspective: Photonic flatbands

open access: yesAPL Photonics, 2018
Flatbands are receiving increasing theoretical and experimental attention in the field of photonics, in particular in the field of photonic lattices.
Daniel Leykam, Sergej Flach
doaj   +1 more source

Phase structure of SU(2) lattice gauge theory with quantum gravity [PDF]

open access: yesPhysics Letters B, 1993
We investigate 4$d$ SU(2) lattice gauge theory with Regge--Einstein quantum gravity on a dynamically coupled Regge skeleton. To overview the phase diagram we perform simulations on a small $2\cdot 4^3$ system. Evidence for an entropy--dominated disordered, an entropy--dominated ordered and an ill--defined region is presented.
Berg, Bernd A.   +1 more
openaire   +2 more sources

Minimal Generators from Positive and Negative Attributes: Analysing the Knowledge Space of a Mathematics Course

open access: yesInternational Journal of Computational Intelligence Systems, 2022
Formal concept analysis is a data analysis framework based on lattice theory. In this paper, we analyse the use, inside this framework, of positive and negative (mixed) attributes of a dataset, which has proved to represent more information on the use of
Manuel Ojeda-Hernández   +4 more
doaj   +1 more source

Toughness enhancement of honeycomb lattice structures through heterogeneous design

open access: yesMaterials & Design, 2022
Inspired by the microstructures feature in the architected composites, which are consisted of a stiff phase and a soft phase, the concept of varying the struts thickness in the uniform honeycomb (UH) is proposed to enhance the toughness of UH structures ...
Xin Shu   +5 more
doaj   +1 more source

Bipartite Digraphs with Modular Concept Lattices of height 2

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
This paper investigates the interaction between Formal Concept Analysis (FCA) and graph theory, with a focus on understanding the structure and representation of concept lattices derived from bipartite directed graphs.
A.O. Basheyeva   +2 more
doaj   +1 more source

Strongly correlated and topological states in [111] grown transition metal oxide thin films and heterostructures

open access: yesAPL Materials, 2020
We highlight recent advances in the theory, materials fabrication, and experimental characterization of strongly correlated and topological states in [111] oriented transition metal oxide thin films and heterostructures, which are notoriously difficult ...
Jak Chakhalian   +2 more
doaj   +1 more source

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