Bulletin of the American Physical Society
2016 Annual Meeting of the Far West Section
Volume 61, Number 17
Friday–Saturday, October 28–29, 2016; Davis, California
Session Q1: Plenary II |
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Chair: Sergey Savrasov Room: Ballroom ABC |
Saturday, October 29, 2016 9:00AM - 9:36AM |
Q1.00001: Observing the birth of planets around nearby stars Invited Speaker: Jonathan Williams One of the most amazing astronomical results of the past decade is the recognition that planetary systems around other stars are ubiquitous. Planet formation is an inevitable consequence of stellar birth. We can learn about how this happens by studying the disks around young stars. The recently completed Atacama Large Millimeter Array (ALMA) in Chile has revolutionized our understanding of the physical processes in protoplanetary disks. I will present some of the latest results from ALMA and discuss the theoretical ideas of how sub-micron sized dust grains grow to super-Earths in just a few million years. Our goal, not yet achieved but within reach, is to place our Solar System in context with other systems and to determine whether the disk properties from which it formed are common or not. [Preview Abstract] |
Saturday, October 29, 2016 9:36AM - 10:12AM |
Q1.00002: The precision frontier: hunting for new short-range forces with resonant sensors Invited Speaker: Andrew Geraci We normally think of large accelerators and large-scale cosmic events when we consider the frontiers of elementary particle physics, pushing to understand the universe at higher and higher energy scales. However, several tabletop low-energy experiments are posed to discover a wide range of new physics beyond the Standard model, where feeble interactions require precision measurements rather than high energies. In our experiments, high-Q resonant sensors enable ultra-sensitive force and field detection. In this talk I will describe two applications of these sensors in searches for new physics, based on techniques in atomic-molecular-and optical (AMO) physics. First, I will discuss an experiment which uses laser-cooled optically trapped silica nanospheres to search for corrections to Newtonian gravity at micron distances with zeptonewton sensitivity. Second, I will discuss the status of the Axion Resonant InterAction Detection Experiment (ARIADNE), a new precision magnetometry experiment designed to search for a notable dark-matter candidate: the QCD axion. [Preview Abstract] |
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