Cosmology and astrophysics with the extragalactic light: background and fluctuationsThe aggregate light emitted by all extragalactic sources can be measured either as an absolute intensity or through its spatial fluctuations; these are known as line-intensity mapping (LIM) when a particular line transition is targeted. I will discuss how these measurements can be used both to learn about galaxy evolution ...
Van Hove charge density waves on hexagonal lattices and kagome superconductorsI show that the charge density waves (CDWs) can realize a host of unconventional phenomena at the Van Hove singularity on the hexagonal lattices, especially in the recently uncovered kagome metals AV3Sb5 with A = K, Rb, and Cs. According to a renormalization group analysis, the imaginary CDW can develop ...
Quantum systems are notoriously unpredictable. Whether Schrödinger’s cat will end up dead or alive is as unpredictable as a coin flip. On the other hand, if you don’t go in and measure things, quantum systems evolve in an apparently very simple way, according to the Schrödinger equation. This apparent simplicity ...
Where: Rohnert ParkCost: Free
Cosmology: What we know, what we don’t know and what we don’t know we don’t knowFor most of the last century cosmology was the province of astronomers (mostly in California) and concerned itself with galaxies in an expanding universe. Beginning around 1980, ideas from particle physics began to enter cosmology, focussed on events that took place during the first microsecond. Circa 2000, with the discovery ...
Where: BerkeleyCost: Free
Science from Across the Solar System and Beyond: NASA’s Deep Space Network - LivestreamNearly every image of another planet that was taken by a NASA spacecraft has been transmitted to us through one or more antennas of NASA’s Deep Space Network (DSN). For almost the past 60 years, the DSN has been guiding spacecraft to their destinations across the Solar System, sending them ...
Most populations of migratory birds are now threatened. It is estimated that the populations of 1 out of every 2 songbirds are declining in the Western Hemisphere with impacts predicted to worsen with climate change. However, because migratory birds have breeding, migratory, and wintering areas and may move vast distances ...
