Topological phases and bulk-edge correspondence of magnetized cold plasmas

Yichen, Fu; Hong, Qin

doi:10.11578/1814934

Title: Topological phases and bulk-edge correspondence of magnetized cold plasmas

Dataset
Other Related Research

Abstract

The ﬁgures and related data are used to describe the topological phase in cold magnetized plasma.

Authors:

Yichen, Fu; Hong, Qin

Princeton University (PPPL)

Publication Date:: Thu Jun 03 04:00:00 UTC 2021

DOE Contract Number:: AC02-09CH11466

Research Org.:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

Subject:: plasma waves; topological phases

OSTI Identifier:: 1814934

DOI:: https://doi.org/10.11578/1814934

Citation Formats


                    Yichen, Fu, and Hong, Qin. Topological phases and bulk-edge correspondence of magnetized cold plasmas.  United States: N. p., 2021. 
        Web.  doi:10.11578/1814934.

Copy to clipboard


                    Yichen, Fu, & Hong, Qin. Topological phases and bulk-edge correspondence of magnetized cold plasmas.  United States.  doi:https://doi.org/10.11578/1814934

Copy to clipboard


                    Yichen, Fu, and Hong, Qin. 2021.  
"Topological phases and bulk-edge correspondence of magnetized cold plasmas".  United States.  doi:https://doi.org/10.11578/1814934.  https://www.osti.gov/servlets/purl/1814934. Pub date:Thu Jun 03 04:00:00 UTC 2021

Copy to clipboard


                    
@article{osti_1814934,

  title        = {Topological phases and bulk-edge correspondence of magnetized cold plasmas},

  author       = {Yichen, Fu and Hong, Qin},

  abstractNote = {The ﬁgures and related data are used to describe the topological phase in cold magnetized plasma.},

  doi          = {10.11578/1814934},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Jun 03 04:00:00 UTC 2021},

  month        = {Thu Jun 03 04:00:00 UTC 2021}

}

Copy to clipboard

Dataset:

View Dataset

DOI: https://doi.org/10.11578/1814934

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Data Explorer and OSTI.GOV collections:

Topological phases and bulk-edge correspondence of magnetized cold plasmas

Journal Article Fu, Yichen ; Qin, Hong - Nature Communications

Abstract Plasmas have been recently studied as topological materials. However, a comprehensive picture of topological phases and topological phase transitions in cold magnetized plasmas is still missing. Here we systematically map out all the topological phases and establish the bulk-edge correspondence in cold magnetized plasmas. We find that for the linear eigenmodes, there are 10 topological phases in the parameter space of density n , magnetic field B , and parallel wavenumber k _z , separated by the surfaces of Langmuir wave-L wave resonance, Langmuir wave-cyclotron wave resonance, and zero magnetic field. For fixed B and k _{more » z} , only the phase transition at the Langmuir wave-cyclotron wave resonance corresponds to edge modes. A sufficient and necessary condition for the existence of this type of edge modes is given and verified by numerical solutions. We demonstrate that edge modes exist not only on a plasma-vacuum interface but also on more general plasma-plasma interfaces. This finding broadens the possible applications of these exotic excitations in space and laboratory plasmas.« less
Topological phases and bulk-edge correspondence of magnetized cold plasmas

Journal Article Fu, Yichen ; Qin, Hong - Nature Communications

Plasmas have been recently studied as topological materials. However, a comprehensive picture of topological phases and topological phase transitions in cold magnetized plasmas is still missing. Here we systematically map out all the topological phases and establish the bulk-edge correspondence in cold magnetized plasmas. We find that for the linear eigenmodes, there are 10 topological phases in the parameter space of density n, magnetic field B, and parallel wavenumber k_z, separated by the surfaces of Langmuir wave-L wave resonance, Langmuir wave-cyclotron wave resonance, and zero magnetic field. For fixed B and k_z, only the phase transition at the Langmuir wave-cyclotronmore »« less
The dispersion and propagation of topological Langmuir-cyclotron waves in cold magnetized plasmas

Dataset Fu, Yichen ; Qin, Hong

The time evolution of the topological Langmuir-Cyclotron waves excited by an external source.
Gas Puff Imaging Diagnostics of Edge Plasma Turbulence in Magnetic Fusion Devices

Dataset Zweben, S J ; Terry, J L ; Stotler, D P ; ...

Gas puff imaging (GPI) is a diagnostic of plasma turbulence which usesa puff of neutral gas at the plasma edge to increase the local visiblelight emission for improved space-time resolution of plasmafluctuations. This paper reviews gas puff imaging diagnostics of edgeplasma turbulence in magnetic fusion research, with a focus on theinstrumentation, diagnostic cross-checks, and interpretationissues. The gas puff imaging hardware, optics, and detectors aredescribed for about 10 GPI systems implemented over the past ~15years. Comparison of GPI results with other edge turbulence diagnosticresults are described and many common features are observed. Severalissues in the interpretation of GPI measurements are discussed,more »« less
Observation of quasi-coherent edge fluctuations in Ohmic plasmas on NSTX

Dataset Banerjee, S. ; Diallo, A. ; Zweben, S.J.

A quasi-coherent mode with frequency f = 40 kHz is observed in Ohmic plasmas in NSTX with the gas puff imaging diagnostic (GPI). This mode is located predominantly just inside the separatrix, with a maximum fluctuation amplitude similar to that of the broadband turbulence in the same frequency range. The quasi-coherent mode has a poloidal wavelength 16 cm and a poloidal velocity 49 km/s in the electron diamagnetic direction, which are similar to the characteristics expected from a linear drift-wave like mode in the edge.

Similar Records