JILA Auditorium

Abstract: Neutral atoms trapped in optical tweezer arrays have emerged as a promising platform for quantum computing, and for the analog simulation of various spin models. In this work, we apply the programmable control provided by optical tweezer arrays to new domains in quantum science by means of interfacing optical tweezers with a Hubbard-regime optical lattice, and extending the optical tweezer toolbox to new atomic species (namely alkaline earth atoms).

Coffee, tea and cookies will be available in G1B31 (across from G1B20) from 3:30–3:50 p.m.

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Abstract: I last came to CU in 2015, and talked almost entirely about molecules in galaxies.  Now I'm 8 years older, and 8 years more esoteric: 2023 Desika is going to talk all about dust!  But seriously, dust is awesome.  It impacts almost every astrophysical observation that you make, is a critical ingredient to thermal balance in the ISM, and is used to trace obscured star formation at all redshifts.   I'll present the results from a new model for dust in galaxy simula

Abstract: For the past decade we have begun to explore the origin of planetary compositions which are set in the natal protoplanetary disk.  

Abstract: Planetary atmospheres are not static in time, and the many changes they experience can contribute to making the planet’s surface a more (or less) hospitable place. Interactions between the planet and its host star are especially important, and not only control the temperature of an atmosphere but can drive atmospheric escape and atmospheric chemistry.

Abstract: In this talk, I discuss the interactions between stellar hosts and planetary companions, including the ejection and ingestion of stellar companions. Drawing insights from stellar evolutionary models and observational survey data (photometric and spectroscopic), I present my team's latest discoveries as we seek to identify unambiguous ingestion-derived chemical tracers.

NASA’s Double Asteroid Redirection Test (DART) mission, the first planetary defense test mission, deliberately impacted an asteroid in order to change its orbit. By impacting Dimorphos, the secondary member of the Didymos near-Earth asteroid binary system, on 2022 September 26, DART demonstrated asteroid deflection by kinetic impact as a technique that may someday be needed to protect the Earth from an asteroid impact threat. Months of subsequent Earth-based observations of the Didymos system showed that the DART impact changed the binary orbital period by –33 min.

A reception with cake in the h-bar will be held after the talk. All JILAns are welcome and encouraged to attend the talk and the reception. 

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