66 citations · 414 across the 23 of their papers we have counts for
23 papers
Structure of pressure-gradient-driven current singularity in ideal magnetohydrodynamic equilibrium
Yi-Min Huang, Yao Zhou, Joaquim Loizu +2
Singular currents typically appear on rational surfaces in non-axisymmetric ideal magnetohydrodynamic equilibria with a continuum of nested flux surfaces and a continuous rotationa…
Nonlinear magnetohydrodynamic modeling of current-drive-induced sawtooth-like crashes in the W7-X stellarator
Yao Zhou, K. Aleynikova, N. M. Ferraro
Sawtooth-like core electron temperature crashes have been observed in W7-X experiments with electron cyclotron current drive. We present nonlinear single-fluid magnetohydrodynamic…
Connections between the Open-boundary Spectrum and Generalized Brillouin Zone in Non-Hermitian Systems
Deguang Wu, Jiao Xie, Yao Zhou +1
Periodic-boundary spectrum, open-boundary spectrum, as well as the generalized Brillouin zone (GBZ) are three essential properties of a one-dimensional non-Hermitian system. In thi…
Numerical study of -function current sheets arising from resonant magnetic perturbations
Yi-Min Huang, Stuart R. Hudson, Joaquim Loizu +2
General three-dimensional toroidal ideal magnetohydrodynamic equilibria with a continuum of nested flux surfaces are susceptible to forming singular current sheets when resonant pe…
Approach to nonlinear magnetohydrodynamic simulations in stellarator geometry
Yao Zhou, N. M. Ferraro, S. C. Jardin +1
The capability to model the nonlinear magnetohydrodynamic (MHD) evolution of stellarator plasmas is developed by extending the M3D- code to allow non-axisymmetric domain geome…
Theory of the tertiary instability and the Dimits shift within a scalar model
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
The Dimits shift is the shift between the threshold of the drift-wave primary instability and the actual onset of turbulent transport in magnetized plasma. It is generally attribut…
Spin and charge transport in topological nodal-line semimetals
Yao Zhou, Feng Xiong, Weipeng Chen +1
We study transport properties of topological Weyl nodal-line semimetals(NLSs). Starting from a minimal lattice model with a single nodal loop, and by focusing on a normal-metal-NLS…
Rigidity of MHD equilibria to smooth incompressible ideal motion near resonant surfaces
David Pfefferlé, Lyle Noakes, Yao Zhou
In ideal MHD, the magnetic flux is advected by the plasma motion, freezing flux-surfaces into the flow. An MHD equilibrium is reached when the flow relaxes and force balance is ach…
Theory of the tertiary instability and the Dimits shift from reduced drift-wave models
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
Tertiary modes in electrostatic drift-wave turbulence are localized near extrema of the zonal velocity with respect to the radial coordinate . We argue that these modes c…
Structure formation in turbulence as instability of effective quantum plasma
Vasileios Tsiolis, Yao Zhou, Ilya Y. Dodin
Structure formation in turbulence is effectively an instability of "plasma" formed by fluctuations serving as particles. These "particles" are quantumlike; namely, their wavelength…
Solitary zonal structures in subcritical drift waves: a minimum model
Yao Zhou, Hongxuan Zhu, I. Y. Dodin
Solitary zonal structures have recently been identified in gyrokinetic simulations of subcritical drift-wave (DW) turbulence with background shear flows. However, the nature of the…
Topological Ising pairing states in monolayer and trilayer TaS
Weipeng Chen, Jin An
We study the possibility of topological superconductivity in the noncentrosymmetric monolayer and trilayer TaS with out-of-plane mirror symmetry. A gapless time-reversal invari…
Nonlinear saturation and oscillations of collisionless zonal flows
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
In homogeneous drift-wave (DW) turbulence, zonal flows (ZFs) can be generated via a modulational instability (MI) that either saturates monotonically or leads to oscillations of th…
Formation of solitary zonal structures via the modulational instability of drift waves
Yao Zhou, Hongxuan Zhu, I. Y. Dodin
The dynamics of the radial envelope of a weak coherent drift wave is approximately governed by a nonlinear Schrödinger equation, which emerges as a limit of the modified Hasegawa-M…
Quasioptical modeling of wave beams with and without mode conversion: I. Basic theory
I. Y. Dodin, D. E. Ruiz, K. Yanagihara +2
This work opens a series of papers where we develop a general quasioptical theory for mode-converting electromagnetic beams in plasma and implement it in a numerical algorithm. Her…
Magnetohydrodynamical equilibria with current singularities and continuous rotational transform
Yao Zhou, Yi-Min Huang, A. H. Reiman +2
We revisit the Hahm-Kulsrud-Taylor (HKT) problem, a classic prototype problem for studying resonant magnetic perturbations and 3D magnetohydrodynamical equilibria. We employ the bo…
On the structure of the drifton phase space and its relation to the Rayleigh--Kuo criterion of the zonal-flow stability
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
The phase space of driftons (drift-wave quanta) is studied within the generalized Hasegawa--Mima collisionless-plasma model in the presence of zonal flows. This phase space is made…
On the Rayleigh--Kuo criterion for the tertiary instability of zonal flows
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
This paper reports the stability conditions for intense zonal flows (ZFs) and the growth rate of the corresponding "tertiary" instability (TI) within the generalized H…
Hopf-link multi-Weyl-loop topological semimetals
Yao Zhou, Feng Xiong, Xiangang Wan +1
We construct a generic two-band model which can describe topological Weyl semimetals with multiple closed Weyl loops. All the existing multi-Weyl-loop semimetals including the noda…
Wave kinetics of drift-wave turbulence and zonal flows beyond the ray approximation
Hongxuan Zhu, Yao Zhou, D. E. Ruiz +1
Inhomogeneous drift-wave turbulence can be modeled as an effective plasma where drift waves act as quantumlike particles and the zonal-flow velocity serves as a collective field th…
Variational Integration for Ideal Magnetohydrodynamics and Formation of Current Singularities
Yao Zhou
Coronal heating has been a long-standing conundrum in solar physics. Parker's conjecture that spontaneous current singularities lead to nanoflares that heat the corona has been con…
Constructing current singularity in a 3D line-tied plasma
Yao Zhou, Yi-Min Huang, Hong Qin +1
We revisit Parker's conjecture of current singularity formation in 3D line-tied plasmas using a recently developed numerical method, variational integration for ideal magnetohydrod…
A Turing model of pattern formation in atmospheric pressure gas discharges
Xi Chen, Yao Zhou, Xi-Ming Zhu +3
In this letter we propose a Turing model of the formation of patterns of visible light emission intensity in atmospheric pressure gas discharges. The electron density and the elect…