Past Events

Abstract: 

Black Marble: Exploring the Earth's Dark Side

Abstract:

Molecules are amongst the most complex objects that can be controlled and studied at the individual quantum state level. In this talk, I will introduce some of the extraordinary advances made in the last decade by the application of AMO physics tools, including cavity-enhanced optical frequency comb and microwave techniques, to such quantum-state-resolved spectroscopy.

Abstract: In this talk I present a method to solve the equations of motion of open quantum many-body systems. It is based on a combination of generalized wave function trajectories and matrix product states. More specifically, we developed an adaptive quantum stochastic propagator, which minimizes the expected entanglement in the many-body quantum state, thus minimizing the computational cost of the matrix product state representation of quantum trajectories.

Abstract: Understanding atmospheric coupling from the troposphere/stratosphere to the upper atmosphere is important for improving climate simulations and space weather forecasts. Gravity waves are one of the key elements in driving atmospheric coupling from the troposphere/stratosphere to the mesosphere and thermosphere. Owing to uncertainties caused by gravity wave parameterizations in general circulation models, it is important to advance our understanding and representation of gravity waves.

Abstract: Electron-scale physics is often the key ingredient that helps to disentangle complex plasma measurements. In this seminar, I highlight the synergies between in-situ observations, simulation models and laboratory experiments, characterizing the role that localized plasma processes can have in regulating the large-scale dynamics and evolution of a macroscopic system. I focus on modeling the kinetic interaction of bodies immersed in plasma using different numerical approaches.

Reception in the h-bar following the defense. 

Reception in the h-bar following the defense.

With reception in the h-bar afterwards. 

Abstract: High harmonic generation is a unique short wavelength light source with high spatial and temporal coherence, enabling ultrafast pump-probe studies of dynamics in chemical reactions, biological systems, and technologically relevant materials. For soft x-ray generation, this requires ultrafast lasers operating at high pulse energy and high repetition rate in the mid-infrared spectral region, which remain a challenging technology.

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

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Butcher Auditorium, A115, JSCBB 3415 Colorado Ave, Boulder, CO 80303

Lunch will be provided.

• Abstract: Spin-orbit coupled Bose-Einstein condensates, where the internal state of the atoms is linked to their momentum through optical coupling, are a flexible experimental platform to engineer synthetic quantum many-body systems. In my talk, I will present recent work where we have exploited the interplay of spin-orbit coupling and tunable interactions in potassium BECs to realize two unconventional superfluid phases.

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: Ultracold polar molecules are promising candidate qubits for quantum computing and quantum simulations. Their long-lived molecular rotational states form robust qubits, and the long-range dipolar interaction between molecules provides quantum entanglement. We demonstrate dipolar spin-exchange interactions between single CaF molecules trapped in an optical tweezer array.

Abstract: Genetic engineering of plants is at the core of sustainability efforts, natural product synthesis, and agricultural crop engineering. The plant cell wall is a barrier that limits the ease and throughput with which exogenous biomolecules can be delivered to plants. Current delivery methods either suffer from host range limitations, low transformation efficiencies, tissue regenerability, tissue damage, or unavoidable DNA integration into the host genome.