Events Archive

Events Archive

FPO - Junyi Zhang - "Study of Phases of Matter: Dipolar Dimer Liquid and Topological Metamaterials with Odd Elasticity"

Wed, May 12, 2021, 10:00 am

Phases of matter are splendid, and get more complicated from physical systems to biochemical systems. Simple physics principles are proposed to categorise various phases of matter. The phys- ical principles are often exemplified by simple idealised models. When they are applied to more complicated biochemical systems, some generalisations may...

PCTS: Polarized Radiation from Supermassive Black Holes

PCTS: Polarized Radiation from Supermassive Black Holes

Biophysics Seminar: Justin Kinney, Cold Spring Harbor Laboratory| Massively parallel assays, machine learning, and the biophysics of gene regulation| Zoom

Mon, May 10, 2021, 12:15 pm

Gene expression in all organisms is controlled by short DNA and RNA sequences called cis-regulatory elements (CREs). Proteins in the cellular milieu bind to nucleic acid sequences present within CREs, interact with one another, and thus form macromolecular complexes that modulate the expression of nearby genes.

Audience: A free lecture open to the public.

PCTS: Polarized Radiation from Supermassive Black Holes

Gravity Group Lunch Seminar | Yilun Guan (Pittsburgh) & Brandon Hensley (Princeton) "The ACT View of the Galactic Center"

Fri, May 7, 2021, 12:00 pm

We present new maps of the Galactic Center in total intensity and polarization made with the Atacama Cosmology Telescope (ACT). We combine dedicated, arcminute-resolution ACT observations over a 32 deg^2 field with Planck intensity and polarization data at similar frequencies to produce maps with fidelity on both small and large angular scales...

FPO - Xinran Li - The energy resolution and the energy deposition processes in disordered targets for rare-event searches

Tue, May 4, 2021, 9:00 am

Underground rare-event search is a substantial branch in particle physics, in which particle dark matter (DM) direct detection and neutrinoless double β decay (0νββ) are two major topics. The elusive nature of the signals puts stringent requirements on the detector contamination level. Some particular interactions also require specific...

HET Seminar | Ian Moult, Stanford University | "Conformal Colliders Meet the LHC" | via Zoom

Mon, May 3, 2021, 2:30 pm

To connect to the HET Seminar via Zoom, please click the following link:


FPO - Yantao Wu - "Variational Monte Carlo Renormalization Group”

Mon, May 3, 2021, 2:00 pm
The renormalization group is an important method to understand the critical behaviors of a statistical system. In this thesis, we develop a stochastic method to perform the renormalization group calculations non-perturbatively with Monte Carlo simulations. The method is variational in nature, and involves minimizing a convex functional of the...

PGI Virtual Seminar Series | Anna Ijjas MPI for Gravitational Physics (Albert Einstein Institute) & Institute for Gravitational Physics, "Ultralocality and the robustness of slow contraction to cosmic initial conditions"

Mon, May 3, 2021, 12:30 pm

Abstract: I will discuss the detailed process by which slow contraction smooths and flattens the universe using an improved numerical relativity code that accepts initial conditions with non-perturbative deviations from homogeneity and isotropy along two independent spatial directions.

Biophysics Seminar: Rosalind Allen, Edinburgh University| Geometry of bacterial growth and division| Zoom

Mon, May 3, 2021, 12:15 pm

The rod-shaped bacterium Escherichia coli proliferates by a process of elongation, followed by constriction at its centre to create new cell poles. Despite intense study, some apparently simple questions about the dynamics of growth and division in E.

Audience: A free lecture open to the public.

HET Seminar | Lorenz Eberhardt, Member, School of Natural Sciences, IAS | "Worldsheet Correlators in AdS3" | via Zoom

Fri, Apr 30, 2021, 1:45 pm

To connect to the HET Seminar via Zoom, please click the following link:


Gravity Group Seminar | Zach Atkins, "Map-based Noise Simulations for ACT Data" Suren Gourapura, "r Error Budget for SPIDER's First Flight"

Fri, Apr 30, 2021, 12:00 pm
Zachary Atkins, Princeton University "Map-based Noise Simulations for ACT Data"

Condensed Matter Zoom Seminar | Siddharth Parameswaran | "Topology and broken symmetry of excitons in two-dimensional materials"

Wed, Apr 28, 2021, 2:00 pm

I will discuss recent  theoretical work on exciton physics in two-dimensional materials. First, I will focus on the neutral particle-hole pair excitations of correlated “orbital Chern insulators” recently detected in twisted bilayer graphene, whose approximately flat conduction and valence bands have equal and opposite non-zero Chern number.


HET Seminar | Mina Aganagic, University of California, Berkeley | "Khovanov Homology from Mirror Symmetry" | via Zoom

Mon, Apr 26, 2021, 2:30 pm

To connect to the HET Seminar via Zoom, please click the following link:


PGI Virtual Seminar Series | Elisa Maggio, University of Rome "Testing the nature of dark compact objects with gravitational waves"

Mon, Apr 26, 2021, 12:30 pm

Gravitational waves from the coalescence of compact binaries provide a unique opportunity to test gravity in the strong field regime. In particular, the postmerger phase of the gravitational signal is a proxy for the nature of the remnant. 

Biophysics Seminar: Julia M. Yeomans, University of Oxford| Active nematic physics in cell layers and tissues| Zoom

Mon, Apr 26, 2021, 12:15 pm

Active materials such as bacteria, molecular motors and eukaryotic cells continuously transform chemical energy taken from their surroundings to mechanical work.

Audience: A free lecture open to the public.

HET Seminar | Soumyadeep Chaudhuri, Hebrew University of Jerusalem | "Thermal order in large N conformal gauge theories" | via Zoom

Fri, Apr 23, 2021, 1:45 pm

To join HET Seminar please click link below:

Meeting ID: 985 9550 4817


Gravity Group Lunch Seminar | Sarah Marie Bruno, "The projected impact of commercial satellite constellations on ground-based astronomy" & Roman Kolevatov, "The DMRadio Experiment at Princeton"

Fri, Apr 23, 2021, 12:00 pm

Sarah Marie Bruno, Princeton University 
"The projected impact of commercial satellite constellations on ground-based astronomy"

Condensed Matter Zoom Seminar | Ana Maria Rey, U Colorado | "Advances in Quantum Simulation with Planar Ion Crystals"

Wed, Apr 21, 2021, 2:00 pm

 In this seminar I will discuss recent progress on the use of planar crystals with hundreds of ions as a platform for quantum simulation of spin and spin-boson models.