Edge mode locality in perturbed symmetry protected topological order [PDF]
SciPost Physics, 2019 Spin chains with symmetry-protected edge zero modes can be seen as prototypical systems for exploring topological signatures in quantum systems. These are useful for robustly encoding quantum information. However in an experimental realization of such
Marcel Goihl, Christian Krumnow, Marek Gluza, Jens Eisert, Nicolas Tarantino
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Multi-scale Interaction Mechanism for Edge-Localized-Mode Suppression in the Tokamak Edge [PDF]
Nature CommunicationsA central challenge in fusion energy is reconciling the high-confinement mode required for reactor performance with the intense intermittent relaxation events it produces, known as edge-localized modes.
Zeyu Li +13 more
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Poloidal localization of the explosive onset of edge localized modes
Nuclear Fusion, 2023 In ASDEX Upgrade lower single null H-mode plasmas, the onset of the explosive phase of Edge Localized Modes (ELMs) is poloidally localized in the X-point/outer strike point (X/OSP) region. From this location, ELMs develop on average towards the low-field
E. Trier +5 more
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Programmable synthetic magnetism and chiral edge states in nano-optomechanical quantum Hall networks [PDF]
Nature CommunicationsArtificial magnetic fields break time-reversal symmetry in engineered materials—also known as metamaterials, enabling robust, topological transport of neutral excitations, much like edge channels facilitate electronic conduction in the integer quantum ...
Jesse J. Slim +2 more
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Prospects of core–edge integrated no-ELM and small-ELM scenarios for future fusion devices
Nuclear Materials and Energy, 2023 One of our grand challenges towards fusion energy is the achievement of a high-performance plasma core coupled to a boundary solution. The high confinement mode (H-mode) provides such a high-performance fusion core due to the build-up of an edge ...
E. Viezzer +25 more
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Automatic identification of edge localized modes in the DIII-D tokamak
APL Machine Learning, 2023 Fusion power production in tokamaks uses discharge configurations that risk producing strong type I edge localized modes. The largest of these modes will likely increase impurities in the plasma and potentially damage plasma facing components, such as ...
Finn H. O’Shea +3 more
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Nonlinear localized gap modes in width-modulated Fibonacci lattices
Results in Physics, 2022 We address the properties of nonlinear localized gap modes supported by the width-modulated Fibonacci lattices, including their existence and stability. Linear system with the width-modulated Fibonacci lattices has multiple gaps. We find the existence of
Weiwei Su +3 more
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The investigation of edge-localized modes on the Globus-M2 tokamak using Doppler backscattering
Nuclear Fusion, 2023 The first results of investigation of edge localized modes (ELMs) in the Globus-M2 tokamak using the Doppler backscattering method are presented in this paper. Specifically, ELMs that are initiated by sawtooth crashes in the H-mode are discussed.
A. Ponomarenko +12 more
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Plasmoid-mediated reconnection during nonlinear peeling–ballooning edge-localized modes
Nuclear Fusion, 2023 Plasmoid-mediated reconnection is investigated for nonlinear peeling–ballooning edge-localized modes (P-B ELMs). The formation of current sheets and the transition to 3D current sheet instability is demonstrated through fully nonlinear resistive MHD ...
Fatima Ebrahimi, Amitava Bhattacharjee
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Kink–ballooning mode in circular tokamak plasma
AIP Advances, 2022 Peeling–ballooning modes, which are driven by gradients of parallel current and pressure in the pedestal, are widely accepted as the instability triggering large Edge Localized Modes (ELMs).
Xinliang Xu, Benjamin Dudson
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