Results 51 to 60 of about 2,145,711 (307)
Observation of Chiral Fermions with a Large Topological Charge and Associated Fermi-Arc Surface States in CoSi. [PDF]
Physical Review Letters, 2018 Topological semimetals materialize a new state of quantum matter where massless fermions protected by a specific crystal symmetry host exotic quantum phenomena.
D. Takane +14 more
semanticscholar +1 more source
Topological charges of noncommutative soliton [PDF]
Physics Letters B, 2001 The noncommutative soliton is characterized by the use of the projection operators in non-commutative space. By using the close relation with the K-theory of $C^*$-algebra, we consider the variations of projection operators along the commutative directions and identify their topological charges.
openaire +3 more sources
Topology and index theorem with a generalized Villain lattice action – a test in 2d
Physics Letters B, 2019 Using 2-d U(1) lattice gauge theory we study two definitions of the topological charge constructed from a generalized Villain action and analyze the implementation of the index theorem based on the overlap Dirac operator.
Christof Gattringer, Pascal Törek
doaj +1 more source
Low-dimensional long-range topological structure in the QCD vacuum [PDF]
, 2003 Lattice topological charge associated with Ginsparg-Wilson fermions exhibits generic topological stability over quantum ensemble of configurations contributing to the QCD path integral. Moreover, the underlying chiral symmetry leads to the suppression of
Cornwall +19 more
core +1 more source
Spiral phase plate with multiple singularity centers
Компьютерная оптика, 2020 We investigate a multispiral phase plate (MSPP) with multiple centers of phase singularity arbitrarily located in the MSPP plane. Equations to describe the topological charge of an optical vortex in the initial plane immediately behind the MSPP and ...
V.V. Kotlyar +3 more
doaj +1 more source
Probing Topological Charge of Discrete Vortices
Physical Review Applied, 2023 Discrete vortex, formed by a one-dimensional (1D) ring array of lasers, contains high output power as compared to a conventional continuous vortex, therefore, has attracted considerable interest due to widespread applications in various fields. We present a method for probing the magnitude and sign of the topological charge (TC) of an unknown discrete ...
Vasu Dev, Vishwa Pal
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Topology of Born-Infeld AdS black holes in 4D novel Einstein-Gauss-Bonnet gravity
Physics Letters B, 2022 The topological classification of critical points of black holes in 4D Einstein-Gauss-Bonnet gravity coupled to Born-Infeld theory is investigated. Considered independently, Born-infeld corrections to the Einstein action alter the topological charge of ...
Pavan Kumar Yerra +1 more
doaj +1 more source
Impact of Dynamical Fermions on QCD Vacuum Structure [PDF]
, 2008 We examine how dynamical fermions affect both the UV and infrared structure of the QCD vacuum. We consider large $28^3 \times 96$ lattices from the MILC collaboration, using a gluonic definition of the topological charge density, founded on a new over ...
Derek B. Leinweber +5 more
core +3 more sources
Topological charge of a linear combination of optical vortices: topological competition.
Optics Express, 2020 We theoretically show that optical vortices conserve the integer topological charge (TC) when passing through an arbitrary aperture or shifted from the optical axis of an arbitrary axisymmetric carrier beam.
V. Kotlyar, A. Kovalev, A. Volyar
semanticscholar +1 more source
Topological charge of center vortices [PDF]
Nuclear Physics B - Proceedings Supplements, 2003 Proceedings, Lattice 2002, 3p ...
openaire +3 more sources