Past Events

Functional Bond-Selective Microscopy for Subcellular Bioanalysis

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Abstract: Advances in optical spectroscopy and microscopy have revolutionized our understanding of biological functions at the sub-cellular levels. In this seminar, I will present our recent efforts in developing and applying next-generation bond-selective spectro-microscopy for retrieving functional chemical information in live cells and neurons.

Reconfigurable Optical Tweezer Arrays of CaF Molecules for Quantum Simulation

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Reconfigurable molecular tweezer arrays are a new emerging platform for quantum science. In recent years, significant progress has been made in controlling molecules and developing essential building blocks for quantum simulation and quantum information processing. In this talk, I will present our work on CaF molecular tweezer arrays. Specifically, I will first discuss the observation of coherent spin exchange oscillations between pairs of molecules and creation of Bell states.

How to Predict Space Weather

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Abstract: This presentation describes space weather impacts and their economic and societal costs. Modern technological society is characterized by a complex set of interdependencies across its critical infrastructures. These are vulnerable to the effects of intense geomagnetic storms and solar disturbances. Strong currents flowing in the ionosphere can disrupt and damage Earth-based electric power grids and contribute to the accelerated corrosion of oil and gas pipelines.

Dirac spin liquid in dipolar Rydberg arrays

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Abstract: Pull an atom's electron far (~100 nm) from its nucleus, and you will get a large electric dipole. In this talk, I will discuss what can happen if you do this to 100+ atoms trapped in an optical tweezer array, where the dipole-dipole interactions manifest as a long-range spin-1/2 XY model. My focus will be on the ensuing many-body ground state physics: on the kagome lattice, numerical calculations indicate this dipolar XY model naturally yields a gapless Dirac spin liquid.

Frontiers in Astronomy Education: From Astro 101 to Astronomy Majors

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Abstract: The past 20 years have seen significant advancements in the teaching and learning in college-level Astronomy, with a particular focus on the introductory general education course (hereafter Astro 101).  In recent years collaborators with the Center for Astronomy Education (CAE) have undertaken a theoretical approach to develop a new generation of instructional strategies.  Beyond advancements in the teaching of Astro 101, this work has bridged to the teaching of Astronomy Majors courses.

Metal Halide Photovoltaics for the Future

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Abstract: This talk will consider photovoltaic (PV) technologies and their role in the energy transition. To do this the basics of semiconductor materials, basic device physics of PVs and current materials used in existing deployed PV will be discussed along with their pros and cons.  With this background new material poised to supercharge PV efficiency and the green energy transition will be discussed.

The Chemistry of Magic!

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Chemistry of Magic 2024CU Wizards Professors Susan Marie Hendrickson and Steven Brown present “The Chemistry of Magic!”   Chemistry is a treat that explains favorite magical tricks! Join CU Wizards for colorful, lively demonstrations that will be as educational as they are FUN! This show is especially great for kids and parents of all ages.

Fundamental Reaction Kinetics Studies for Low-Temperature Astrochemistry Applications

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Abstract:  Many of the new molecules discovered in astrophysical objects are totally outlandish by traditional perspectives: long linear unsaturated carbon chains, metals in surprising charge states, and strained ring structures have all challenged chemists to think beyond terrestrial conventions in explaining how these molecules form and react, and where they fit into the overall cycle of planetary and stellar evolution.