Ultracold dipolar atoms and molecules present a wealth of exciting out-of-equilibrium phenomena. I’ll discuss some of the understanding developed over the past several years, and several useful applications to experiments.
Abstract: Living systems exhibit unique emergent properties such as self-assembly, rigidity, resilience, and robustness.
Abstract: NASA Earth Science has put significant attention towards enabling uses of Earth science information to support decision making activities by public and private sector organizations. In addition to supporting technical innovations, NASA also pursued several programmatic innovations to help the Earth science community develop capacity in engaging with users, designing projects, and enabling results.
APS Faculty who have research opportunities in their group will present flash talks on their research.
Absract: The promising optoelectronic properties of halide perovskites position them as candidate materials for solar cells, displays, and more. Their compositional and process flexibility provides a large and attractive design space and has led to outstanding optoelectronic figures of merit. However, the same flexibility also gives rise to challenges in reproducibility and phase stability.
Abstract: Fundamental understanding of the climate responses to solar variability is obscured by the large and complex climate variability. This long-standing issue is addressed here by examining climate responses under an extreme quiet sun (EQS) scenario, obtained by making the sun void of all magnetic fields. It is used to drive a coupled climate model with whole atmosphere and ocean components.
Abstract: Rubble pile asteroids are thought to form in the aftermath of cataclysmic collisions between proto-planets. The details of how the detritus from such collisions reaccumulate to form these bodies are not well understood, yet can play a fundamental role in the subsequent evolution of these bodies in the solar system. Simple items such as how particle sizes and porosity is distributed within a body can have a significant influence on how they subsequently evolve.
Abstract: The efficiencies of devices utilizing semiconductor nanocrystals (NCs) are predominantly regulated by nonradiative processes. One key process in this regard is hot exciton cooling, wherein a highly excited electron-hole pair undergoes nonradiative relaxation to give rise to a band-edge exciton. The timescale and mechanism of this cooling process are not comprehensively understood.
Abstract: Over the last twenty years, physicists have learned to manipulate individual quantum objects: atoms, ions, molecules, quantum circuits, electronic spins... It is now possible to build "atom by atom" a synthetic quantum matter. By controlling the interactions between atoms, one can study the properties of these elementary many-body systems: quantum magnetism, transport of excitations, superconductivity...
Seeing small things takes bright lights and great optics. But you still have to see something. This talk will discuss detectors for electron and X-ray microscopies: how they work, what are they challenges, and where are the opportunities. The competition is intense: the human eye has ~108 ‘pixels’ and a dynamic range of ~104 (and has a direct connection to a built-in neural processor). No camera today can match these specs (although we are getting close).
