Throughout the past three decades, the analysis of spectroscopic surveys has focussed around the two-point function of the galaxy overdensity field, masquerading either as the correlation function or the Fourier-space power spectrum. Today, theoretical interest has shifted towards other statistics, in particular the higher-point functions.

# Events Archive

## 2021

### Gravity Group Lunch Seminar | Oliver Philcox, PU "Have we exhausted the galaxy two-point function?"

### Condensed Matter Zoom Seminar | Eugene Demler, Harvard | "A new perspective on magnetic polarons from cold atoms"

What can we learn about a many-body system when we measure every constituent particle? Current experiments with ultracold atoms provide snapshots of many-body states with single particle resolution. I will present a recent application of this method to study magnetic polarons in antiferromagnetic Mott insulators.

### HET Seminar | Leonard Susskind, Stanford University | "Some Half-Baked Thoughts about de Sitter Space" | via Zoom

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

https://theias.zoom.us/j/83432499354?pwd=TkhMZWFJK2E1UzRyeUppU01pZVQwUT09

Abstract: The question I will address is: How does the holographic principle...

### PGI Virtual Seminar Series | Lydia Bieri, University of Michigan "New Structures in Gravitational Radiation"

Gravitational waves transport information from faraway regions of the Universe. Since the first detection of gravitational waves by Advanced LIGO in September 2015, several other events have been recorded by the LIGO/VIRGO collaboration.

### Biophysics Seminar: Satu Palva, University of Helsinki and University of Glasgow| Multi-scale synchronization dynamics in human cognition| Zoom

Perception, attention and working memory are fundamental cognitive functions, which are based on parallel processing in many brain areas. Neuronal oscillations at sub-second timescales and their phase correlations a.k.a.

### HET Seminar | Grisha Tarnopolskiy, Harvard | "Conformal operators in SYK-like models and their numerical effects" | via Zoom

To join HET Seminar please click link below:

### HET Seminar | Jordan Cotler, Harvard | "Black hole microstate statistics from Euclidean wormholes" | via Zoom

To join HET Seminar please click link below:

https://princeton.zoom.us/j/98595504817?pwd=QWxDMzFGWjdBdmVBRTFyQmtvajVNQT09

Meeting ID: 985 9550 4817

### PGI Virtual Seminar Series | Chris White, PU "Misaligned Accretion Flows and Their Impact on Black Hole Observations"

A priori it would be surprising if all low-luminosity supermassive black holes, such as those in the centers of M87 and our own galaxy, had accretion disks aligned with their spin.

### Biophysics Seminar: Raymond E. Goldstein, University of Cambridge| Fluid and Light: Dinoflagellate Bioluminescence at the Single Cell Level| Zoom

One of the characteristic features of many marine dinoflagellates is their bioluminescence, which lights up nighttime breaking waves or seawater sliced

by a ship’s prow. While the internal biochemistry of light production by these microorganisms is well established, the manner by which fluid shear or mechanical

### HET Seminar | Ying Zhao, Member, School of Natural Sciences, IAS | "Size and Momentum of an Infalling Particle in the Black Hole Interior" | via Zoom

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

https://theias.zoom.us/j/96660745132?pwd=Y3FPUWVDZlNwUEdINkxjSnNhK0dpZz09

### EDI Seminar Series | "Advancing Diversity at the PhD Level in Physics and Astronomy" | Keivan G. Stassun, Vanderbilt University | via Zoom

Join Zoom Meeting

https://princeton.zoom.us/j/97268600627

### HET Seminar | Gregory Moore, Rutgers University | "N=2* SU(2) Supersymmetric Yang-Mills Theory and Four-Manifold Invariants" | via Zoom

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

https://theias.zoom.us/j/83432499354?pwd=TkhMZWFJK2E1UzRyeUppU01pZVQwUT09

### HET Seminar | Daniel Harlow, MIT | "Algebra of diffeomorphism-invariant operators in JT gravity from the Peierls bracket" | via Zoom

To join HET Seminar please click link below:

### A PGI Special Seminar, "What's on the horizon? A discussion on the scientific prospects of the next-generation Event Horizon Telescope"

The Event Horizon Telescope (EHT) has produced the first image of a black hole for M87, opening the possibility to test general relativity and our understanding of black hole accretion and high-energy plasma physics.

As the community is preparing to take the next steps, we want to discuss current challenges and future prospects of EHT...

### HET Seminar | Alex Belin, CERN | "The OPE Randomness Hypothesis and Euclidean Wormholes" | via Zoom

To join HET Seminar please click link below:

### PGI Virtual Seminar Series | Brianna Grado-White, Brandeis "Multi-mouth Traversable Wormholes"

Abstract:

### HET Seminar | Nafiz Ishtiaque, Member, School of Natural Sciences, IAS | "4d Chern-Simons Theory and a Stringy Point of View on the Bethe/Gauge Correspondence for Superspin Chains" | via Zoom

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

https://theias.zoom.us/j/96660745132?pwd=Y3FPUWVDZlNwUEdINkxjSnNhK0dpZz09

### HET Seminar | Surjeet Rajendran, Johns Hopkins University | "Firewalls in General Relativity" | via Zoom

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

https://theias.zoom.us/j/83432499354?pwd=TkhMZWFJK2E1UzRyeUppU01pZVQwUT09

### PGI Virtual Seminar Series | Eliot Quataert, PU "Horizon-scale Modeling of Black Hole Accretion"

Abstract: In this talk, I will provide an overview of theoretical models of black hole accretion aimed primarily at non-specialists. I will focus in particular on efforts to understand the dynamics of, and radiation from, plasma in the near-horizon environment, both analytically and using numerical simulations.

### Biophysics Seminar: Kinneret Keren, Technion, Israel| Topological defects in the nematic order of actin fibers as organization centers of Hydra morphogenesis| Zoom

Morphogenesis, the emergence of functional form in a developing organism, is one of the most remarkable examples of pattern formation in nature. Despite substantial progress, we still do not understand the organizational principles underlying the convergence of this process, across scales, to form viable organisms under variable conditions.