Past Events

From Rocks to Rockets

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Abstract: Watkins will share highlights from her recent 170 days of living and
working aboard the International Space Station, her path to space, and
her perspective on the role of geology in space exploration.

 

Gravity waves and traveling ionospheric disturbances in the stratosphere, mesosphere and thermosphere from mountain waves, the polar vortex, the Tonga eruption and deep convection via multi-step vertical coupling

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Abstract: Atmospheric gravity waves (GWs) are created in the troposphere from wind flow over mountains, and in the stratosphere below the maximum of the polar vortex from imbalance of the polar vortex. Because these GWs are slow, they cannot propagate directly to the thermosphere due to dissipation from breaking/critical level filtering and molecular viscosity.

TBA

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Lab Website: https://www.laublab.mit.edu/
Synopsis: The Laub lab works to understand toxin-antitoxin systems and other immunity mechanisms in bacteria as well as  gaining insight to the molecular basis of protein evolution/coevolution of interacting proteins. The lab uses computational analyses, and genome-scale approaches like RNA-seq. 

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A115 Butcher Auditorium
Jennie Smoly Caruthers Biotechnology Building (JSCBB)
3415 Colorado Ave.
Boulder, CO 80303

Study on Metal-Ligand Interactions: Infrared Ion Spectroscopy of Coordination Compounds

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Abstract: A molecular level investigation of metal-ligand interactions that govern structure and function in coordination complexes. Coordination compounds perform a wide variety of important chemical tasks, from the biochemical transport of molecules and ions to industrial applications in electrocatalysis and contaminant sequestration. Coordination chemistry with organic ligands is ubiquitous, providing chemical access to over half of the periodic table.

Setting Experimental Bounds on Entangled Two-Photon Absorption Cross Sections

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Entangled two-photon absorption (E2PA) is a process in which entangled photon pairs are used instead of a pulsed laser to excite a two-photon transition. The correlation of these photons in time and space may improve the excitation efficiency. In this work, we develop experimental apparatuses that enable sensitive measurements of E2PA via both transmittance and fluorescence-based schemes. We show strong evidence that E2PA cross sections are several orders of magnitude lower than many prior reports claimed.

Characterizing Quantum Devices Using the Principles of Quantum Information

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Abstract: The past few decades have born out exquisite improvements in the control of quantum systems, with quantum computing and quantum metrology at the forefront. It has therefore become essential to design methodologies for assessing the performance of these devices. Unsurprisingly, the field of quantum information has already paved the way forward.