Results 61 to 70 of about 129,807 (319)

On Sombor indices of generalized tensor product of graph families

open access: yesResults in Control and Optimization
Graph invariants are extensively being used in different fields for analysing the structural properties of different compounds. Several topological indices, their properties and relations between different indices have been explored. Ivan Gutman recently
Nadar Jenita Mary Masilamani Raja   +1 more
doaj   +1 more source

Torsion-induced gravitational $$\theta $$ θ term and gravitoelectromagnetism

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Motivated by the analogy between a weak field expansion of general relativity and Maxwell’s laws of electrodynamics, we explore physical consequences of a parity violating $$\theta $$ θ term in gravitoelectromagnetism.
Athanasios Chatzistavrakidis   +2 more
doaj   +1 more source

Pivotal tricategories and a categorification of inner-product modules

open access: yes, 2014
This article investigates duals for bimodule categories over finite tensor categories. We show that finite bimodule categories form a tricategory and discuss the dualities in this tricategory using inner homs.
Schaumann, Gregor
core   +1 more source

Cluster State as a Noninvertible Symmetry-Protected Topological Phase. [PDF]

open access: yesPhysical Review Letters
We show that the standard 1+1D Z_{2}×Z_{2} cluster model has a noninvertible global symmetry, described by the fusion category Rep(D_{8}). Therefore, the cluster state is not only a Z_{2}×Z_{2} symmetry protected topological (SPT) phase, but also a ...
Sahand Seifnashri, Shu-Heng Shao
semanticscholar   +1 more source

Adaptive anisotropic porous structure design and modeling for 2.5D mechanical parts

open access: yesMaterials & Design, 2021
As displaying many advantages including high specific strength, light weight, energy absorption, etc., porous structures have been widely used in aerospace, medical science, engineering and other fields.
Bin Liu   +4 more
doaj   +1 more source

A functional-analytic theory of vertex (operator) algebras, I

open access: yes, 1998
This paper is the first in a series of papers developing a functional-analytic theory of vertex (operator) algebras and their representations. For an arbitrary Z-graded finitely-generated vertex algebra (V, Y, 1) satisfying the standard grading ...
Huang, Yi-Zhi
core   +1 more source

A note on order topologies on ordered tensor products [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1970
If E, F are regularly ordered vector spaces the tensor product E ⊗ F can be ordered by the conic hull Kπ of tensors, x ⊗ y with x ≥ 0 in E and y ≥ 0 in F, or by the cone K⊗ of tensors Φ ∈ E ⊗ F such that Φ(x′, y′) ≥ 0 for positive linear functionals x′, y′ on E, F.If E, F are locally convex spaces the tensor product can te given the π-topology which is
openaire   +2 more sources

AKLT-States as ZX-Diagrams: Diagrammatic Reasoning for Quantum States

open access: yesPRX Quantum, 2022
From Feynman diagrams to tensor networks, diagrammatic representations of computations in quantum mechanics have catalyzed progress in physics. These diagrams represent the underlying mathematical operations and aid physical interpretation, but cannot ...
Richard D.P. East   +3 more
doaj   +1 more source

New universal gates for topological quantum computation with Fibonacci-$\boldsymbol{\varepsilon}$ composite Majorana edge modes on topological superconductor multilayers

open access: yes, 2020
We propose a new design of universal topological quantum computer device through a hybrid of the 1-, 2- and 7-layers of chiral topological superconductor ($\chi$TSC) thin films.
Bin Chen   +5 more
core   +1 more source

Ultrahigh Piezoelectricity in Truss‐Based Ferroelectric Ceramics Metamaterials

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By leveraging the unique combination of polarization direction and loading state, ultrahigh piezoelectricity is achieved through careful tuning of the relative density and scaling ratio in truss‐based ferroelectric metamaterials. This approach enables the simultaneous realization of extremely high piezoelectric constants and ultralow dielectric ...
Jiahao Shi   +6 more
wiley   +1 more source

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