Condensed, Soft & Living Matter Seminar: Geometry for Many Body Systems: Geometrical Sum Rules and Lattice Models
Jie Wang (Temple University)
Geometry describes how quantum states change locally in parameter space and governs many important physical phenomena, including many-body phases and their responses. The classic example of zero-temperature…
Condensed, Soft & Living Matter Seminar: Light Probes and Structural Color in Dense Complex Media: Lost Between Single and Multiple Scattering
Frank Scheffold (University of Fribourg, Switzerland)
Visible light can be used to probe dense, complex media such as colloidal suspensions or compact sediments. In liquid samples, the temporal fluctuations contain information about the local viscoelastic…
High Energy Theory Seminar: The Quantum Universe from Quantum Gravity
Yasunori Nomura (Berkeley)
I will discuss issues involved in formulating a quantum theory of the universe, including nonperturbative aspects of quantum gravity. In particular, I will explore how to pose physically meaningful questions in…
Rittenhouse Lecture: Measuring Cosmic Sound with the Dark Energy Spectroscopic Instrument
Daniel Eisenstein (Harvard University)
I will describe recent results from the Dark Energy Spectroscopic Instrument (DESI) on the measurement of the cosmic distance scale with the baryon acoustic oscillation (BAO) method and its resulting…
High Energy Theory Seminar: Love numbers for astrophysical compact objects in theories beyond General Relativity
Kent Yagi (University of Virginia)
One can probe nuclear physics with gravitational waves from a binary neutron star merger through measurements of a tidal Love number. The latter is a linear response coefficient of the stellar quadrupole moment…
Condensed, Soft & Living Matter Seminar: Physical approaches to understanding and predicting viral evolution
John Barton (University of Pittsburgh)
How predictable is evolution? This question has inspired biological research for decades, but it remains challenging to address quantitatively. In this talk, I will describe how we adapted methods from…
Astrophysics Seminar: Why a tiny neutrino particle inspired me to simulate and reconstruct the entire Universe
Adrian Bayer (Flatiron)
Massive neutrinos suppress the growth of cosmic structure on small, non-linear scales, making it crucial to go beyond a traditional power spectrum analysis to tighten constraints on their mass.