Results 31 to 40 of about 8,260 (218)

Discrete flavour symmetries from the Heisenberg group

open access: yesPhysics Letters B, 2016
Non-abelian discrete symmetries are of particular importance in model building. They are mainly invoked to explain the various fermion mass hierarchies and forbid dangerous superpotential terms.
E.G. Floratos, G.K. Leontaris
doaj   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

B-splines on the Heisenberg Group

open access: yesComplex Analysis and Operator Theory
Abstract The aim of this paper is to introduce a class of B-splines $${\phi }_n$$ ϕ n on the Heisenberg group $${\mathbb {H}}$$
Das, S. R., Massopust, P., Radha, R.
openaire   +3 more sources

High‐Throughput Discovery of Quantum Frustrated Materials

open access: yesAdvanced Functional Materials, EarlyView.
Physics‐guided discovery of frustrated kagome and triangular magnets. ABSTRACT Geometrical frustration provides a fertile platform for realizing exotic quantum phases such as spin liquids, yet, the predictive identification of frustrated magnets remains limited.
Byeong‐Hyeon Jeong   +4 more
wiley   +1 more source

$C^{*}$-Rigidity of the Heisenberg Group

open access: yesPublications of the Research Institute for Mathematical Sciences
We prove that the Heisenberg groups can be distinguished from the other connected and simply connected Lie groups via their group C^{*} -algebras.
Ingrid Beltiţă, Daniel Beltiţă
openaire   +2 more sources

Hölder-topology of the Heisenberg group [PDF]

open access: yesAequationes mathematicae, 2020
The Heisenberg groups are examples of sub-Riemannian manifolds homeomorphic, but not diffeomorphic to the Euclidean space. Their metric is derived from curves which are only allowed to move in so-called horizontal directions. We report on some recent progress in the Analysis of the Hölder topology of the Heisenberg group, some related and some ...
openaire   +2 more sources

B-tubular surfaces in Lorentzian Heisenberg Group H3

open access: yesActa Scientiarum: Technology, 2015
In this paper, B-tubular surfaces in terms of biharmonic spacelike new type B-slant helices according to Bishop frame in the Lorentzian Heisenberg group H3 are studied. The Necessary and sufficient conditions for new type B-slant helices to be biharmonic
Talat Körpınar
doaj   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

open access: yesAdvanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens   +8 more
wiley   +1 more source

Measuring the Hall Effect in Hysteretic Materials

open access: yesAdvanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya   +6 more
wiley   +1 more source

Critical nonlocal Schrödinger-Poisson system on the Heisenberg group

open access: yesAdvances in Nonlinear Analysis, 2021
In this paper, we are concerned with the following a new critical nonlocal Schrödinger-Poisson system on the Heisenberg group:
Liu Zeyi   +4 more
doaj   +1 more source

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