Physical Sciences and Mathematics Commons^™

The Classical Limit Of Entropic Quantum Dynamics, Anthony V. Demme

Physics

The framework of entropic dynamics (ED) allows one to derive quantum mechanics as an application of entropic inference. In this work we derive the classical limit of quantum mechanics in the context of ED. Our goal is to find conditions so that the center of mass (CM) of a system of N particles behaves as a classical particle. What is of interest is that ~ remains finite at all steps in the calculation and that the classical motion is obtained as the result of a central limit theorem. More explicitly we show that if the system is sufficiently large, and …

Characterizing Kepler Objects Of Interest Using The Algorithm Exonest, Bertrand Carado

Physics

Recent observations across the galaxy have led to the conclusion that there exist many different extrasolar systems. Using photometric effects, the amount of data that has been produced on exoplanets has significantly increased and will continue to rise. Finding new methods of data analysis to broaden the spectrum of research has therefore become a necessity. Exonest is an algorithm currently in development that uses Bayesian methods, and notably nested sampling, to infer characteristics about an exoplanet from its observed light curve.

In this paper, Exonest was tested by being used to study three extra-solar systems: each containing a single confirmed …

The Utilization Of Exonest In Characterizing Kepler Objects, Nicole Wallack

Physics

With the first detection of an exoplanet, came the study of methods to detect and characterize additional planets. Multiple methods for finding exoplanets were developed, including transit methods. When a star’s flux is being observed for an extended period of time and a slight dip in the relative flux is seen periodically, this may be evidence of a planet passing in front of the star and blocking out a portion of the received flux. It is this method that is employed by the Kepler spacecraft. Kepler observes approximately 100,000 stars looking for periodic decreases in stellar fluxes. From the produced …

The Van Der Pol Oscillator As A Model Of The Hair Cell Auditory Response: A Numerical Study, Thomas Yocono

Physics

Hair cells, which detect and encode sound stimuli, have been shown to have a non-linear response and self sustaining oscillations. Here, we look at the Van der Pol oscillator, which has these properties, and numerically calculate its response to multiple driving frequencies. Any nonlinear system's response to multiple driving frequencies will have not just the driving frequencies present, but also combination tones, or heterodyne frequencies, which have order defined by the number of driving frequency combinations. This phenomenon has been experimentally confirmed in the human auditory response [1]. In the frequency specture of the Van der Pol steady state response …

Robust And Economical Autonomous Navigation Via Advanced Bayesian Methods, Ali H. Chaudry

Physics

A 2009 NASA SBIR grant awarded to Autonomous Exploration, Inc., was partially used to fund students at the University at Albany to help research whether autonomous navigation systems can be prepared at a much lower cost than is currently being done. Expensive and bulky sensors (the basis of current-generation navigation systems) can be avoided by using commercially available low-cost sensors; the disadvantages of these low-cost sensors can be eluded by using novel data-processing techniques such as Bayesian analysis. Integration of these methods can lead to low-cost navigation systems, and hence, rovers. Potential applications include extra-planetary surface exploration as well as …

Techniques For Improving Parameter Estimation In Esr, Troy R. Broderick

Physics

This paper is to address the need for better estimates of the ESR spectral parameters of biological systems. In this paper I focus on models of spectral lineshapes and will be applying these techniques to more complicated lineshapes. Multifrequency ESR is a powerful technique for identifying and characterizing dynamic modes in natively unfolded biopolymers in general and loop regions in particular. I will introduce the reader to properties of ESR, formalisms and common techniques in the field. A common result for a simple ESR line is a Lorentzian distribution that is characterized by a mode and width. Information about the …

Analysis Of Prominent Decay Modes For The Higgs Boson At The Lhc, Matthew Parenti

Physics

No abstract provided.