Photonic topological fermi nodal disk in nonHermitian magnetic plasma

Wenhui Wang; Wenlong Gao; Leifeng Cao; Yuanjiang Xiang; Shuang Zhang

doi:10.1038/s41377-020-0274-3

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Photonic topological fermi nodal disk in nonHermitian magnetic plasma

Article

- Photonic topological fermi nodal disk in nonHermitian magnetic plasma
- Photonic topological fermi nodal disk in nonHermitian magnetic plasma
- LSA 2020年9卷第2期页码：369-376
- Affiliations：
  
  1.International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Institute of Microscale Optoelectronics (IMO), Shenzhen University, 518060 Shenzhen, China
  2.School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, UK
  3.National Key Laboratory for Laser Fusion, Research Centre of Laser Fusion, CAEP, 621900 Mianyang, China
  4.School of Physics and Electronics, Hunan University, 410082 Changsha, China
- Author bio：
  
  Yuanjiang Xiang (xiangyuanjiang@126.com)
  Shuang Zhang (s.zhang@bham.ac.uk)
- Funds：
- DOI：10.1038/s41377-020-0274-3
  中图分类号：
- 纸质出版日期：2020，
  
  网络出版日期：2020-03-11，
  
  收稿日期：2019-03-04，
  
  修回日期：2020-01-13，
  
  录用日期：2020-02-26
- Accepted：
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Photonic topological fermi nodal disk in nonHermitian magnetic plasma[J]. LSA, 2020,9(2):369-376.

Wang, W. H. et al. Photonic topological fermi nodal disk in nonHermitian magnetic plasma. Light: Science & Applications, 9, 369-376 (2020).
Photonic topological fermi nodal disk in nonHermitian magnetic plasma[J]. LSA, 2020,9(2):369-376. DOI： 10.1038/s41377-020-0274-3.

Wang, W. H. et al. Photonic topological fermi nodal disk in nonHermitian magnetic plasma. Light: Science & Applications, 9, 369-376 (2020). DOI： 10.1038/s41377-020-0274-3.

摘要

Abstract

Topological physics mainly arises as a necessary link between properties of the bulk and the appearance of surface states

and has led to successful discoveries of novel topological surface states in Chern insulators

topological insulators

and topological Fermi arcs in Weyl

Dirac

and Nodal line semimetals owing to their nontrivial bulk topology. In particular

topological phases in non-Hermitian systems have attracted growing interests in recent years. In this work

we predict the emergence of the topologically stable nodal disks where the real part of the eigen frequency is degenerate between two bands in non-ideal magnetohydrodynamics plasma with collision and viscosity dissipations. Each nodal disk possesses continuously distributed topological surface charge density that integrates to unity. It is found that the lossy Fermi arcs at the interface connect to the middle of the projection of the nodal disks. We further show that the emergence

coalescence

and annihilation of the nodal disks can be controlled by plasma parameters and dissipation terms. Our findings contribute to understanding of the linear theory of bulk and surface wave dispersions of non-ideal warm magnetic plasmas from the perspective of topological physics.

关键词

Keywords

references

Massines, F. et al. On the nature of the luminescence emitted by a polypropylene film after interaction with a cold plasma at low temperature.J. Appl. Phys.81, 937-943 (1997)..

Hasegawa, A. Drift-wave instabilitiesof a compressional mode in a high-βPlasma.Phys. Rev. Lett.27, 11-14 (1971)..

Landau, L. D.&Lifshitz, E. M.Electrodynamics of Continuous Media. (Oxford: Pergamon Press, 1960).

Ilgisonis, V. I. et al. Geodesic acoustic modes and zonal flows in rotating large-aspect-ratio tokamak plasmas.Plasma Phys. Controlled Fusion53, 065008 (2011)..

Hirshman, S. P.&Sigmar, D. J. Neoclassical transport of impurities in tokamak plasmas.Nucl. Fusion21, 1079-1201 (1981)..

Lindl, J. Development of the indirect‐drive approach to inertial confinement fusion and the target physics basis for ignition and gain.Plasma Plasmas2, 3933-4024 (1995)..

Pile, D. Plasma X-ray source.Nat. Photon.9, 631 (2015)..

Shivarova, A., Stoychev, T.&Russeva, S. Surface wave propagation along a current-carrying warm plasma column.J. Phys. D: Appl. Phys.8, 383-393 (1975)..

Aliev, Y. M.&Brodin, G. Instability of a strongly inhomogeneous plasma.Phys. Rev. A42, 2374-2378 (1990)..

Buti, B.Advances in Space Plasma Physics. (Singapore: World Scientific, 1985).

Gao, W. L. et al. Photonic Weyl degeneracies in magnetized plasma.Nat. Commun.7, 12435 (2016)..

Wang, D. Y. et al. Photonic Weyl points due to broken time-reversal symmetry in magnetized semiconductor.Nat. Phys.15, 1150-1155 (2019)..

Ida, K. Experimental studies of the physical mechanism determining the radial electric field and its radial structure in a toroidal plasma.Plasma Phys. Controlled Fusion40, 1429-1488 (1998)..

Kriesel, J. M.&Driscoll, C. F. Measurements of viscosity in pure-electron plasmas.Phys. Rev. Lett.87, 135003 (2001)..

Shen, H. T., Zhen, B.&Fu, L. Topological band theory for non-Hermitian Hamiltonians.Phys. Rev. Lett.120, 146402 (2018)..

Rudner, M. S.&Levitov, L. S. Topological transition in a non-Hermitian quantum walk.Phys. Rev. Lett.102, 065703 (2009)..

Lee, T. E. Anomalous edge state in a non-Hermitian lattice.Phys. Rev. Lett.116, 133903 (2016)..

Leykam, D. et al. Edge modes, degeneracies, and topological numbers in non-Hermitian systems.Phys. Rev. Lett.118, 040401 (2017)..

Gong, Z. P. et al. Topological phases of non-Hermitian systems.Phys. Rev. X8, 031079 (2018)..

Yao, S. Y.&Wang, Z. Edge states and topological invariants of non-Hermitian systems.Phys. Rev. Lett.121, 086803 (2018)..

Chen, W. J. et al. Exceptional points enhance sensing in an optical microcavity.Nature548, 192-196 (2017)..

Zhou, H. Y. et al. Observation of bulk Fermi arc and polarization half charge from paired exceptional points.Science359, 1009-1012 (2018)..

Miri, M. A.&Alù, A. Exceptional points in optics and photonics.Science363, eaar7709 (2019)..

El-Ganainy, R. et al. Non-Hermitian physics and PT symmetry.Nat. Phys.14, 11-19 (2018)..

Carlström, J.&Bergholtz, E. J. Exceptional links and twisted Fermi ribbons in non-Hermitian systems.Phys. Rev. A98, 042114 (2018)..

Berry, M. V.&Mondragon, R. J. Diabolical points in one-dimensional Hamiltonians quartic in the momentum.J. Phys. A: Math. Gen.19, 873-885 (1986)..

Berry, M. V.&Jeffrey, M. R. Conical diffraction complexified: dichroism and the transition to double refraction.J. Opt. A: Pure Appl. Opt.8, 1043-1051 (2006)..

Moiseyev, N.Non-Hermitian Quantum Mechanics. (Cambridge University Press, Cambridge, 2011).

Heiss, W. D. The physics of exceptional points.J. Phys. A: Math. Theor.45, 444016 (2012)..

Cerjan, A. et al. Effects of non-Hermitian perturbations on Weyl Hamiltonians with arbitrary topological charges.Phys. Rev. B97, 075128 (2018)..

Kullig, J., Yi, C. H.&Wiersig, J. Exceptional points by coupling of modes with different angular momenta in deformed microdisks: a perturbative analysis.Phys. Rev. A98, 023851 (2018)..

Zhang, Z. Y. et al. Non-Hermitian optics in atomic systems.J. Phys. B: At. Mol. Opt. Phys.51, 072001 (2018)..

Kullig, J. et al. Exceptional points of third-order in a layered optical microdisk cavity.N. J. Phys.20, 083016 (2018)..

Malzard, S.&Schomerus, H. Bulk and edge-state arcs in non-Hermitian coupled-resonator arrays.Phys. Rev. A98, 033807 (2018)..

Xu, Y., Wang, S. T.&Duan, L. M. Weyl exceptional rings in a three-dimensional dissipative cold atomic gas.Phys. Rev. Lett.118, 045701 (2017)..

Keck, F., Korsch, H. J.&Mossmann, S. Unfolding a diabolic point: a generalized crossing scenario.J. Phys. A: Math. Theor.36, 2125-2137 (2003)..

Zyuzin, A. A.&Zyuzin, A. Y. Flat band in disorder-driven non-Hermitian Weyl semimetals.Phys. Rev. B97, 041203 (2018)..

González, J.&Molina, R. A. Topological protection from exceptional points in Weyl and nodal-line semimetals.Phys. Rev. B96, 045437 (2017)..

Doveil, F., Vosluisant, Y.&Tsunoda, S. I. Localization of langmuir waves in a fluctuating plasma.Phys. Rev. Lett.69, 2074-2077 (1992)..

Lee, H. J.&Cho, S. H. Boundary conditions for surface waves propagating along the interface of plasma flow and free space.J. Plasma Phys.58, 409-419 (1997)..

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