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174 papers · 1 filter
Estimation of dynamic networks for high-dimensional nonstationary time series
Mengyu Xu, Xiaohui Chen, Wei Biao Wu
This paper is concerned with the estimation of time-varying networks for high-dimensional nonstationary time series. Two types of dynamic behaviors are considered: structural break…
Realizing spin-Hamiltonians in nanoscale active photonic lattices
Midya Parto, William Hayenga, Alireza Marandi +2
Spin models arise in the microscopic description of magnetic materials, where the macroscopic characteristics are governed by exchange interactions among the constituent magnetic m…
Non-Hermitian Ring Laser Gyroscopes with Enhanced Sagnac Sensitivity
Mohammad P. Hokmabadi, Alexander Schumer, Demetrios N. Christodoulides +1
Gyroscopes play a crucial role in many and diverse applications associated with navigation, positioning, and inertial sensing [1]. In general, most optical gyroscopes rely on the S…
Model for Asteroid Regolith to Guide Simulant Development
Philip T. Metzger, Daniel T. Britt
When creating asteroid regolith simulant, it is necessary to have a model of asteroid regolith to guide and to evaluate the simulant. We created a model through evaluation and synt…
Measuring the Fidelity of Asteroid Regolith and Cobble Simulants
Philip T. Metzger, Daniel T. Britt, Stephen Covey +5
NASA has developed a "Figure of Merit" method to grade the fidelity of lunar simulants for scientific and engineering purposes. Here we extend the method to grade asteroid simulant…
Thermodynamic theory of highly multimoded nonlinear optical systems
Fan O. Wu, Absar U. Hassan, Demetrios N. Christodoulides
The quest for ever higher information capacities has brought about a renaissance in multimode optical waveguide systems. This resurgence of interest has recently initiated a flurry…