Title: Dynamic Jahn-Teller effect and a multi-polar order in 5d double-perovskites, The properties of strongly correlated systems have been at the forefront of scientific research for many decades. Typically focused on 3d transition metal compounds, it was often enough to consider only two relevant energy scales, the hopping integral and on-site Coulomb repulsion. In recent […]
TITLE: Cosmological results from the Dark Energy Spectroscopic Instrument, ABSTRACT: A quarter-century after the discovery of the accelerated expansion of theuniverse, the constraints on dark energy that powers this acceleration havebecome very good, but physical nature of dark energy remains elusive. I willpresent and discuss cosmological results from the measurement of baryonacoustic oscillations (BAO) in […]
Condensed Mater & Biological Physics Seminar: Shenshen Wang (UCLA) Host: Brian Camley
ML x Astro/Cosmo meetings are geared towards discussing new methods/ideas at the intersection of machine learning and astrophysics/cosmology.
Galaxy Clusters As Dark Matter Laboratories Benedikt Diemer (UMD) JHU/STScI joint colloquium
TITLE: Precision measurement in tabletop experiments, Abstract: Many theories of physics beyond the Standard Model predict small deviations from Standard Model behavior at low energy scales. We can search for such deviations by performing precision measurements in "tabletop" experiments. In this talk, I will describe some of the frontiers of research in this field. I […]
Black (hole) Coffee is a space for students, postdocs, and professors to discuss cutting-edge research on all things black holes, spanning both observations and theory.
Worldline effective theories and gravitational dynamicsWorldline effective theories are incredibly useful tools for studying the dynamics of spatially compact systems, with gravitational binaries being a perfect example. In particular they allow for the import of many tools from quantum field theory, eg. Feynman diagrams, loop integration techniques, dimensional regularization, renormalization group, etc. Work in recent […]
TITLE: Looking for Fossils of the Big Bang 2025 Ferdinand G. Brickwedde Lecture in Physics
TITLE: Quantum Control of Quantum Materials, ABSTRACT: Coherently engineering quantum states with light is a key frontier in the control of quantum materials. Over the last two decades, ultrafast lasers have revealed a variety of emergent topological, magnetic, and superconducting states in quantum materials driven far from equilibrium. Early experiments mainly adopted incoherent excitation strategies, […]
How to Reionize the Universe: Lessons from Low RedshiftAnne Jaskot (Williams College)
Title: Precision measurements are having a moment: recent results in leptons and why they matter, Abstract: The past three years have seen three dipole-moment measurements of record-breaking accuracy – the magnetic dipole moments (aka “g-2”) of the muon and of the electron, and the electric dipole moment (EDM) of the electron. I will focus at first […]