Eigenvector continuation is a computational method that finds the extremal eigenvalues and eigenvectors of Hamiltonian matrix with one or more control parameters. It does this by projection onto subspace corresponding to selected training values The has proven be very efficient accurate for interpolating extrapolating eigenvectors. However, almost nothing known about how converges, its rapid co...

searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggesstions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Hi...

Pump frequency noise coupling into a microcavity by thermo-optic locking Report Title As thermo-optic locking is widely used to establish a stable frequency detuning between an external laser and a high Q microcavity, it is important to understand how this method affects microcavity temperature and frequency fluctuations. A theoretical analysis of the laser-microcavity frequency fluctuations is...

Separated Component-Based Restoration of Speckled SAR Images Report Title Many coherent imaging modalities such as Synthetic Aperture Radar (SAR) suffer from a multiplicative noise commonly referred to as speckle which often makes the interpretation of data difficult. An effective strategy for speckle reduction is to use a dictionary that can sparsely represent the features in the speckled imag...

Variation in the Helical Structure of Native Collagen Report Title Article About the Authors Metrics Comments Related Content Abstract Introduction Materials and Methods Results and Discussion Acknowledgments Author Contributions References Reader Comments (0) Figures Abstract The structure of collagen has been a matter of curiosity, investigation, and debate for the better part of a century. T...

Dynamic stabilization of an optomechanical oscillator Report Title Quantum optomechanics offers the potential to investigate quantum effects in macroscopic quantum systems in extremely well-controlled experiments. In this paper we discuss one such situation, the dynamic stabilization of a mechanical system such as an inverted pendulum. The specific example that we study is a “membrane-in-the-mi...

searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggesstions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Hi...

Analysis of stress distributions under lightweight wheeled vehicles Report Title In recent years, the need for reliable modeling tools for lightweight robotic systems deployed on various terrains has spurred research efforts into development of vehicle terrain interaction (VTI) models. This paper presents an analysis of rigid wheels dry sand interaction and compares experimental results with pr...