Past Events
Physicists do Social Science: The Case of GRE's
This colloquium is ONLINE ONLY:
Special Physics Colloquium: Magnetic pumping as a mechanism for particle energization in space and astrophysical plasmas
Please note special time and location.
Formation, Evolution and Radiation of Magnetized Accretion Disks
Abstract:
The impact of magnetic fields on the evolution and on the observational signatures of accretion disks is very uncertain. This uncertainty is mainly due to a lack of observational constraints on the magnetic field geometry or strength in accretion disks. However, even from a theoretical point of view our understanding of magnetized disks remains relatively poor. Indeed, analytic models of magnetized disks often need inputs from numerical simulations and numerical simulations of magnetized disks are difficult to perform and/or interpret.
Out In STEM (oSTEM) Panel
On April 1, 2022, oSTEM is excited to bring you the Out in STEM Panel, where we'll be talking with STEM professionals from various different disciplines about their experiences being LGBTQ+ in the STEM workplace! This event is open to all CU students, faculty, and staff, and registration is open now!
Event details:
What: Out in STEM Panel
When: Friday, April 1, 2022 5-7 PM
Where: the BOLD Center (ECCE 100)
In situ transient absorption spectroscopy during materials formation
Abstract: Molecules, polymers, and nanocrystals can form the active layer in electronic devices such as photovoltaics and light-emitting diodes. Their electronic structure and excited state dynamics dictate their function and suitability for these applications. Transient absorption (TA) spectroscopy is used to measure these properties, and has provided remarkable insights into the behavior and function of electronic materials.
Time and the Precise Measurement and Application of Atomic Clocks
Virtual AMO Seminars
Nonabelian Hall conductance in general dimensions as an invariant of the interacting ground state wavefunction
Abstract: The long-wavelength response of a gapped many-body system in D spatial dimensions with a Lie group symmetry G to an external gauge field is believed to be described by a Chern-Simons action in dimension D+1. Since the coefficient of the Chern-Simons action is quantized, it is a topological invariant (i.e. is unchanged under deformations of the Hamiltonian which do not close the gap).
Earth’s Electromagnetic Oceans: Tsunamis and Tides
Seminar Abstract:
More than 70% of Earth’s surface is ocean covered. In the past, this was seen as a challenge for geophysicists dependent on on-land observatories. But now, largely thanks to an enduring era of reliable low Earth orbit satellite magnetometer data, this challenge has become a boon: 70% of Earth’s surface is covered by a moving, electrically conductive fluid that creates detectable electromagnetic signals which can then be used to study the solid Earth, the oceans themselves, and natural hazards such as tsunamis.
JEDI Meeting
Hi JEDI! We are having a meeting this Thursday at 2 pm! Hope to see you all there! It will be a HYBRID event, as we'll be meeting on the 7th floor of the tower. This meeting will be a planning/discussion meeting, so please come to provide feedback and input and also have a good discussion! Hope to see you there! https://cuboulder.zoom.us/j/96257014126
Visiting Fellow Reception for Dr. Monika Aidelsburger
Please join us for a reception in honor of JILA Visiting Fellow Prof. Dr. Monika Aidelsburger, Ludwig-Maximilians-University Munich, Germany.
There will be cake!
Then at 3:00 pm please join Prof. Dr. Aidelsburger for her talk in the JILA Auditorium.
Dynamics of Rotation and Magnetism in the Sun's Convection Zone and Tachocline
Quantum simulation with ultracold atoms – from Hubbard models to gauge theories
This Colloquium is IN-PERSON only.
Coffee and Cookies will be available at 3:45 in DUAN G1B31
TBA
Degenerate Polar Molecules with Controlled Interactions and Reactivity.
Abstract: Ultracold polar molecules, which have complex internal state structures and dipole moments tunable with external electric fields, are a promising system for studying many-body physics. Producing degenerate molecules and observing quantum effects has been prevented by high initial temperatures and rapid loss from chemical reactions. In this talk, I describe the creation of degenerate potassium-rubidium (KRb) molecules by pairing in an atomic mixture. We apply electric fields to control dipolar interactions and vary chemical reaction rates over orders of magnitude.