25 citations · 68 across the 11 of their papers we have counts for
11 papers
Bremsstrahlung constraints on proton-Boron 11 inertial fusion
I. E. Ochs, E. J. Kolmes, A. S. Glasser +1
Proton-Boron 11 (pB11) fusion is relatively safe and clean, but difficult to use for net power production, since bremsstrahlung radiation tends to radiate away power more quickly t…
Generalized Yee methods: Scalable symplectic finite element Maxwell solvers
Alexander S. Glasser, Hong Qin
Yee's finite-difference method preserves two crucial properties of Maxwell's equations -- locality and symplecticity -- and thereby enjoys two computational advantages: scalability…
Discrete Gravity with Local Lorentz Invariance
Eugene Kur, Alexander S. Glasser
A novel structure-preserving algorithm for general relativity in vacuum is derived from a lattice gauge theoretic discretization of the tetradic Palatini action. The resulting mode…
A gauge-compatible Hamiltonian splitting algorithm for particle-in-cell simulations using finite element exterior calculus
Alexander S. Glasser, Hong Qin
A particle-in-cell algorithm is derived with a canonical Poisson structure in the formalism of finite element exterior calculus. The resulting method belongs to the class of gauge-…
Spontaneous and explicit parity-time-symmetry breaking in drift wave instabilities
Hong Qin, Yichen Fu, Alexander S. Glasser +1
A method of Parity-Time (PT)-symmetry analysis is introduced to study the high dimensional, complicated parameter space of drift wave instabilities. We show that spontaneous PT-sym…
-Loop Theory
Alexander S. Glasser, Hong Qin
A new formalism for lattice gauge theory is developed that preserves Poincaré symmetry in a discrete universe. We define the -loop, a generalization of the Wilson loop…
The geometric theory of charge conservation in particle-in-cell simulations
Alexander S. Glasser, Hong Qin
In recent years, several gauge-symmetric particle-in-cell (PIC) methods have been developed whose simulations of particles and electromagnetic fields exactly conserve charge. While…
Restoring Poincaré Symmetry to the Lattice
Alexander S. Glasser, Hong Qin
The following work demonstrates the viability of Poincaré symmetry in a discrete universe. We develop the technology of the discrete principal Poincaré bundle to describe the pairi…
Lifting Spacetime's Poincaré Symmetries
Alexander S. Glasser, Hong Qin
In the following work, we pedagogically develop 5-vector theory, an evolution of scalar field theory that provides a stepping stone toward a Poincaré-invariant lattice gauge theory…
Kelvin-Helmholtz instability is the result of parity-time symmetry breaking
Hong Qin, Ruili Zhang, Alexander S. Glasser +1
Parity-Time (PT)-symmetry is being actively investigated as a fundamental property of observables in quantum physics. We show that the governing equations of the classical two-flui…
Delayed Feedback and Chaos on the Driven Diode-Terminated Transmission Line
Vassili Demergis, Alexander Glasser, Marshal Miller +3
A simple model of a distributed, non-linear circuit that produces chaos at GHz frequencies is introduced and tested experimentally. The model circuit is a driven diode-terminated t…