Results 31 to 40 of about 106,609 (287)

Blowing Polar Skyrmion Bubbles in Oxide Superlattices

open access: yes, 2017
Particle-like topological structures such as skyrmions and vortices have garnered ever-increasing interests due to the rich physical insights and potential broad applications.
Chen, Long-Qing, Hong, Zijian
core   +1 more source

Fraisse Limits, Ramsey Theory, and Topological Dynamics of Automorphism Groups [PDF]

open access: yes, 2004
We study in this paper some connections between the Fraisse theory of amalgamation classes and ultrahomogeneous structures, Ramsey theory, and topological dynamics of automorphism groups of countable structures.Comment: 73 pages, LaTeX 2e, to appear in ...
Kechris, A. S.   +2 more
core   +2 more sources

Representing geometric structures ind dimensions: Topology and order [PDF]

open access: yesDiscrete & Computational Geometry, 1989
The work investigates data structures for representing and manipulating \(d\)-dimensional geometric objects for arbitrary \(d\geq 1\). A class of geometric objects is defined, the `subdivided \(d\)-manifolds', which is large enough to encompass many applications. A new representation is given for such objects, the `cell-tuple structure', which provides
openaire   +3 more sources

Two Dimensional Descriptors Based on Degree, Neighborhood Degree, and Reverse Degree for HEX (Hexagonal) Lattice

open access: yesJournal of Mathematics, 2022
Crystal structures are of great scrutiny due to the elegant and well-ordered symmetry that influences a significant role in determining numerous physical properties.
Asima Razzaque   +3 more
doaj   +1 more source

Moir\'e excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices [PDF]

open access: yes, 2017
Highly uniform and ordered nanodot arrays are crucial for high performance quantum optoelectronics including new semiconductor lasers and single photon emitters, and for synthesizing artificial lattices of interacting quasiparticles towards quantum ...
Liu, Gui-Bin   +4 more
core   +2 more sources

Modelling brain dynamics by Boolean networks

open access: yesScientific Reports, 2022
Understanding the relationship between brain architecture and brain function is a central issue in neuroscience. We modeled realistic spatio-temporal patterns of brain activity on a human connectome with a Boolean networks model with the aim of ...
Francesca Bertacchini   +3 more
doaj   +1 more source

Quantum phase transition between symmetry enriched topological phases in tensor-network states

open access: yesPhysical Review Research, 2023
Quantum phase transitions between different topologically ordered phases exhibit rich structures and are generically challenging to study in microscopic lattice models.
Lukas Haller   +3 more
doaj   +1 more source

Investigating the topological structure of quenched lattice QCD with overlap fermions by using multi-probing approximation

open access: yes, 2017
The topological charge density and topological susceptibility are determined by multi-probing approximation using overlap fermions in quenched SU(3) gauge theory.
Chen, Ying   +6 more
core   +1 more source

Boojums in Rotating Two-Component Bose-Einstein Condensates

open access: yes, 2006
A boojum is a topological defect that can form only on the surface of an ordered medium such as superfluid $^3$He and liquid crystals. We study theoretically boojums appearing between two phases with different vortex structures in two-component BECs ...
Blaauwgeers R.   +14 more
core   +1 more source

Characterization of Self-Assembled 2D Patterns with Voronoi Entropy

open access: yesEntropy, 2018
The Voronoi entropy is a mathematical tool for quantitative characterization of the orderliness of points distributed on a surface. The tool is useful to study various surface self-assembly processes. We provide the historical background, from Kepler and
Edward Bormashenko   +7 more
doaj   +1 more source

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