46 citations · 116 across the 11 of their papers we have counts for
11 papers
Gap modes in Arnold tongues and their topological origins
Andrew Brown, Hong Qin
Gap modes in a modified Mathieu equation, perturbed by a Dirac delta potential, are investigated. It is proved that the modified Mathieu equation admits stable isolated gap modes w…
Improved Dimensionality Reduction for Inverse Problems in Nuclear Fusion and High-Energy Astrophysics
Jonathan Gorard, Ammar Hakim, Hong Qin +2
Many inverse problems in nuclear fusion and high-energy astrophysics research, such as the optimization of tokamak reactor geometries or the inference of black hole parameters from…
Zero curvature is a necessary and sufficient condition for a spin-orbital decomposition
Eric Palmerduca, Hong Qin
There has been an extended debate regarding the existence of a spin-orbital decomposition of the angular momentum of photons and other massless particles. It was recently shown tha…
Gromov ground state in phase space engineering for fusion energy
Hong Qin, Elijah J. Kolmes, Michael Updike +2
Phase space engineering by RF waves plays important roles in both thermal D-T fusion and non-thermal advanced fuel fusion. But not all phase space manipulation is allowed, certain…
Asymptotic generalized bivariate extreme with random index
M. A. Abd Elgawad, A. M. Elsawah, Hong Qin +1
In many biological, agricultural, military activity problems and in some quality control problems, it is almost impossible to have a fixed sample size, because some observations ar…
Generalized Kapchinskij-Vladimirskij Distribution and Beam Matrix for Phase-Space Manipulations of High-Intensity Beams
Moses Chung, Hong Qin, Ronald C. Davidson +2
In an uncoupled linear lattice system, the Kapchinskij-Vladimirskij (KV) distribution, formulated on the basis of the single-particle Courant-Snyder (CS) invariants, has served as…