Ultralight dark matter candidates with masses below 1 eV are often considered to behave "classically". By this, one typically means that the dark matter exists in a coherent state (of the harmonic oscillator defined by the creation/annihilation operators of its momentum modes). This would, for instance, be the case for virialized dark matter, which might be observed in a laboratory experiment. On cosmological scales, however, if dark matter exhibits isocurvature fluctuations which were produced by inflation, these fluctuations will instead exist in a squeezed state.

Lunch 1pm-1:30pm on PAB Patio

Zoom

Please contact Philipp Frank or Sydney Erickson for more information.
 

We are honored to feature four panelists who are successful STEM professionals and include KIPAC alumni:

Zoom Link

Recent observations of black holes in two nearby low-mass X-ray binaries have indicated the possible presence of dark matter density spikes. While the evidence is compelling, one issue with this interpretation is that light black holes formed from stellar collapse are not expected to form dark matter spikes, and so it is unclear how the stellar-mass black holes in these binaries could have acquired such features.

One of the lowest cost planetary missions NASA has ever conducted, Deep Space 1 (DS1) was designed to take risks so subsequent missions would not have to.

We are delighted to host the first Quarterly Forum of the Center for Decoding the Universe at Stanford, a new initiative of Stanford Data Science and the Kavli Instit

Big Bang Nucleosynthesis (BBN) is a powerful tool for probing both new physics and LCDM, and complements analyses utilizing the Cosmic Microwave Background (CMB) and results from particle experiment.  I will provide two examples of BBN probes of BSM models, and show that there is still a lot to learn about BBN and new physics.  I will finally discuss the recently-released fast and differentiable BBN code LINX, which can be used to perform full BBN+CMB joint analyses at a level of sophistication that has never been achieved before.

Dark Matter (DM) remains mysterious. Despite decades of experimental and theoretical efforts, its microscopic identity is still unknown to us. In this talk, I will walk you through how a variety of celestial objects can be utilised as powerful DM detectors. This astrophysical probe, complementary to the terrestrial and cosmological probes, covers a significant portion of the DM parameters (DM mass and its interaction strength with nucleons) which otherwise remains elusive.