JILA Auditorium

Abstract:
	Several companies are now launching megaconstellations of thousands
of communication satellites (satcons), which would increase the number of
active satellites in Low Earth Orbit at least twenty-fold in the next few
years.	SpaceX's Starlink satcon is currently largest (over 3,100
satellites) and is adding 60 new satellites every couple of weeks. While
these satcons do allow internet access in many underserved rural and remote
locations, the costs are prohibitively high for all but the most well-off

Abstract:

The Parker Solar Probe spacecraft has traveled closer to the Sun than any other human-made object. It has measured in-situ magnetic fields, electric fields, thermal plasma, high energy particles, and interplanetary dust in the near-Sun solar wind. Most recently, it made the first in-situ measurements of the solar corona, dipping below the Alfven surface.

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Abstract: It is well established that people learn better when they are actively engaged with the material they are learning. In this talk, I will focus on active learning methods used in the upper division, and the research that goes into their development. In particular, we will discuss the structure of a tutorial to designed to improve student visual understanding of time dependence in quantum mechanics and the assessment of its effectiveness. We will also discuss whether or not the context of a question can impact student performance.

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

Physics Colloquia are held Wednesdays at 4:00 p.m. in the JILA Auditorium.

Abstract: Understanding emergent behaviors in strongly interacting quantum systems is a frontier area of condensed matter physics. However, simulations of quantum many-body systems on classical computers are not scalable beyond a few dozen particles. This motivates the development of quantum simulators, highly controllable analog quantum computers specifically designed to study certain types of problems in condensed matter physics.

Abstract: How quantum mechanics governs space, time and gravity is a longstanding mystery. Inspired by properties of black holes, recent progress has been made relating quantum spacetime to properties of quantum information and quantum computation such as entanglement entropy, computational complexity and quantum error-correcting codes. I will review some of these developments and discuss some of my own work on geometric realizations of measures of entanglement.

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Abstract: 2019 marked the 75th anniversary of the publication of Erwin Schrodinger's "What is Life?'', a short book hailed by Roger Penrose as "among the most influential scientific writings of the 20th century'’.