Results 21 to 30 of about 2,473,071 (281)

Edge localized mode control with an edge resonant magnetic perturbation [PDF]

Physics of Plasmas, 2005
A low amplitude (δbr∕BT=1 part in 5000) edge resonant magnetic field perturbation with toroidal mode number n=3 and poloidal mode numbers between 8 and 15 has been used to suppress most large type I edge localized modes (ELMs) without degrading core plasma confinement. ELMs have been suppressed for periods of up to 8.6 energy confinement times when the
Moyer, R. A, Evans, T. E, Osborne, T. H, Thomas, P. R, Becoulet, M., Harris, J., Finken, K.-H, Boedo, J. A, Doyle, E. J, Fenstermacher, M. E, Gohil, P., Groebner, R. J, Groth, M., Jackson, G. L, La Haye, R. J, Lasnier, C. J, Leonard, A. W, McKee, G. R, Reimerdes, H., Rhodes, T. L, Rudakov, D. L, Schaffer, M. J, Snyder, P. B, Wade, M. R, Wang, G., Watkins, J. G, West, W. P, Zeng, L.   +27 more
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Edge Localized Modes as New Bifurcation in Tokamaks

Physical Review Letters, 1996
A model of giant edge localized modes in tokamaks is developed. The theory of self-sustained turbulence of a current-diffusive ballooning mode is extended. A bifurcation from the H mode to a third state with magnetic braiding, the M mode, is found to occur if the pressure gradient reaches a critical value.
, Itoh, , Itoh, , Fukuyama, , Yagi
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Edge Modes and Nonlocal Conductance in Graphene Superlattices [PDF]

Physical Review Letters, 2018
We study the existence of edge modes in gapped Moiré superlattices in graphene monolayer ribbons. We find that the superlattice bands acquire finite Chern numbers, which lead to a Valley Hall Effect. The presence of dispersive edge modes is confirmed by calculations of the band structure of realistic nanoribbons using tight binding methods.
Brown, Rory, Walet, Niels; id_orcid 0000-0002-2061-5534, Guinea, Francisco   +2 more
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Edge states and the η invariant

Physics Letters B, 2023
We propose a relation between the η invariant on a manifold with boundary, the η invariants of edge states, and the η invariant in an infinite volume limit. With the example of planar fermions with bag and chiral bag boundary conditions we show that this
Rodrigo Fresneda, Lucas de Souza, Dmitri Vassilevich   +2 more
doaj   +1 more source

Experimental observation of edge states in SSH-Stub photonic lattices

Physical Review Research, 2022
We reveal unconventional edge states in a one-dimensional Stub lattice of coupled waveguides with staggered hoppings. The edge states appear for the same values of hoppings as topological edge states in the Su-Schrieffer-Heeger model. They have different
Gabriel Cáceres-Aravena, Bastián Real, Diego Guzmán-Silva, Alberto Amo, Luis E. F. Foa Torres, Rodrigo A. Vicencio   +5 more
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Localized Conical Edge Modes of Higher Orders in Photonic Liquid Crystals

Crystals, 2019
Most studies of the localized edge (EM) and defect (DM) modes in cholesteric liquid crystals (CLC) are related to the localized modes in a collinear geometry, i.e., for the case of light propagation along the spiral axis.
Vladimir A. Belyakov, Sergei V. Semenov   +1 more
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Effect of electromechanical coupling on locally resonant quasiperiodic metamaterials

AIP Advances, 2023
Electromechanical metamaterials have been the focus of many recent studies for use in simultaneous energy harvesting and vibration control. Metamaterials with quasiperiodic patterns possess many useful topological properties that make them a good ...
Joshua LeGrande, Mohammad Bukhari, Oumar Barry   +2 more
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Spatial structure of unstable normal modes in a glass-forming liquid

SciPost Physics, 2021
The phenomenology of glass-forming liquids is often described in terms of their underlying, high-dimensional potential energy surface. In particular, the statistics of stationary points sampled as a function of temperature provides useful insight into
Masanari Shimada, Daniele Coslovich, Hideyuki Mizuno, Atsushi Ikeda
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Dynamics of Quasiperiodic Beams

Crystals, 2020
Quasiperiodic metastrucures are characterized by edge localized modes of topological nature, which can be of significant technological interest. We here investigate such topological modes for stiffened and sandwich beams, which can be employed as ...
Mohit Gupta, Massimo Ruzzene
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Edge-localized-modes in tokamaks

Physics of Plasmas, 2014
Edge-localized-modes (ELMs) are a ubiquitous feature of H-mode in tokamaks. When gradients in the H-mode transport barrier grow to exceed the MHD stability limit the ELM instability grows explosively, rapidly transporting energy and particles onto open field lines and material surfaces.
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