Topological phases and bulk-edge correspondence of magnetized cold plasmas

@article{Fu2021TopologicalPA,
  title={Topological phases and bulk-edge correspondence of magnetized cold plasmas},
  author={Yichen Fu and Hong Qin},
  journal={Nature Communications},
  year={2021},
  volume={12}
}
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 kz, separated by the… 
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References

SHOWING 1-10 OF 51 REFERENCES
Nontrivial topology in the continuous spectrum of a magnetized plasma
Classification of matter through topological phases and topological edge states between distinct materials has been a subject of great interest recently. While lattices have been the main setting for
Topological magnetoplasmon
TLDR
The historically studied two-dimensional magnetoplasmon, which bears gapped bulk states and gapless one-way edge states near-zero frequency, is topologically analogous to the 2D topological p+ip superconductor with chiral Majorana edge states and zero modes.
Topological Gaseous Plasmon Polariton in Realistic Plasma.
TLDR
It is shown that the gaseous plasmon polariton (GPP) may be found within a gapped spectrum in present-day laboratory devices, suggesting that platforms are currently available for experimental investigation of topological wave physics in plasmas.
Topological phase in plasma physics
  • J. Parker
  • Physics
    Journal of Plasma Physics
  • 2021
Recent discoveries have demonstrated that matter can be distinguished on the basis of topological considerations, giving rise to the concept of topological phase. Introduced originally in condensed
Topological origin of equatorial waves
TLDR
A topological origin is shown for two well-known equatorially trapped waves, the Kelvin and Yanai modes, owing to the breaking of time-reversal symmetry by Earth's rotation, which demonstrates that ocean and atmospheric waves share fundamental properties with topological insulators and that topology plays an unexpected role in Earth's climate system.
Physical Violations of the Bulk-Edge Correspondence in Topological Electromagnetics.
TLDR
The correspondence principle is physically violated for all practical purposes, as a result of the unavoidable attenuation of highly confined modes even if all materials are assumed perfect, with zero intrinsic bulk losses, due to confinement-induced Landau damping or nonlocality-induced radiation leakage.
Photonic Weyl degeneracies in magnetized plasma
TLDR
The presence of a novel type of plasmonic Weyl points in a naturally existing medium—magnetized plasma, in which Weyl Points arise as crossings between purely longitudinal plasma modes and transverse helical propagating modes is reported.
Proof of the Bulk-Edge Correspondence through a Link between Topological Photonics and Fluctuation-Electrodynamics
The bulk-edge correspondence links the Chern-topological numbers with the net number of unidirectional states supported at an interface of the relevant materials. This fundamental principle is
A bulk-interface correspondence for equatorial waves
Topology is introducing new tools for the study of fluid waves. The existence of unidirectional Yanai and Kelvin equatorial waves has been related to a topological invariant, the Chern number, that
One-way helical electromagnetic wave propagation supported by magnetized plasma
TLDR
This paper numerically investigates an interface between magnetized plasma, using a realistic model for parameter dispersion, and vacuum, to confirm the existence of one-way scatter-immune helical surface states.
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