Results 11 to 20 of about 189,025 (287)

Edge Localized Modes in Tokamaks [PDF]

open access: yesFusion Science and Technology, 2008
As one increases the heating power in a tokamak beyond a threshold, the confinement undergoes a bifurcation, with a dramatic increase in the confinement time by a factor ˜2.
Wilson, H. R.
openaire   +4 more sources

Dynamical signatures of topological order in the driven-dissipative Kitaev chain [PDF]

open access: yesSciPost Physics, 2019
We investigate the effects of dissipation and driving on topological order in superconducting nanowires. Rather than studying the non-equilibrium steady state, we propose a method to classify and detect dynamical signatures of topological order in ...
Moos van Caspel, Sergio Enrique Tapias Arze, Isaac Pérez Castillo
doaj   +4 more sources

Turbulence characterization during the suppression of edge-localized modes by magnetic perturbations on ASDEX Upgrade

open access: yesNuclear Fusion, 2023
We study localized edge turbulence in the ASDEX Upgrade tokamak that appears if resonant magnetic perturbations (RMP) are applied to suppress edge localized modes (ELMs) in the high confinement mode.
N. Leuthold   +19 more
doaj   +1 more source

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

open access: yesPhysics 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   +27 more
openaire   +2 more sources

Custodial glide symmetry of quantum spin Hall edge modes in WTe$_2$ monolayer [PDF]

open access: yes, 2018
A monolayer of WTe$_2$ has been shown to display quantum spin Hall (QSH) edge modes persisting up to 100~K in transport experiments. Based on density-functional theory calculations and symmetry-based model building including the role of correlations and ...
Di Sante, Domenico   +5 more
core   +2 more sources

Topological Valley Currents in Gapped Dirac Materials [PDF]

open access: yes, 2014
Gapped 2D Dirac materials, in which inversion symmetry is broken by a gap-opening perturbation, feature a unique valley transport regime. The system ground state hosts dissipationless persistent valley currents existing even when topologically protected ...
Lensky, Yuri D.   +3 more
core   +4 more sources

Topological Corner Modes in Graphene-Coated Nanowire Waveguide

open access: yesApplied Sciences, 2020
We study the plasmonic second-order topological modes in nanowire waveguides which are covered by monolayer graphene. The waveguide arrays are arranged in the kagome lattice. In a triangle-shaped lattice, the topological modes are localized at the corner
Ningliang Liu   +3 more
doaj   +1 more source

Self-trapping and stable localized modes in nonlinear photonic crystals [PDF]

open access: yes, 2015
We predict the existence of stable nonlinear localized modes near the band edge of a two-dimensional reduced-symmetry photonic crystal with a Kerr nonlinearity.
Kivshar, Yuri, Mingaleev, Sergei
core   +3 more sources

Discrete surface solitons in two dimensions [PDF]

open access: yes, 2006
We investigate fundamental localized modes in 2D lattices with an edge (surface). Interaction with the edge expands the stability area for ordinary solitons, and induces a difference between perpendicular and parallel dipoles; on the contrary, lattice ...
B. A. Malomed   +6 more
core   +3 more sources

Edge states and the η invariant

open access: yesPhysics 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   +2 more
doaj   +1 more source

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