I will discuss walking behavior in gauge theories and weakly first order phase transition in statistical models. Despite being phenomena appearing in very different physical systems, they both show a region of approximate scale invariance. They can be understood as a RG flow passing between two fixed points living at complex couplings, which we...

# Events Archive

## 2019

### High Energy Theory - “Walking, weakly first order phase transitions and complex CFTs” - Bernardo Zan - Princeton

### Condensed Matter Seminar | Klaus Richter, University of Regensburg, Germany | "Probing the Quantum Mechanics of Many-Body Chaos" | PCTS Seminar Room 407

The dynamics and spread of quantum information in complex many-body systems is presently attracting

a lot of attention across various fields, ranging from cold atom physics via condensed quantum matter

to high energy physics and quantum gravity. This includes questions of how a quantum system thermalizes

### Biophysics Seminar: Zaida Luthey-Schulten, University of Illinois at Urbana-Champaign: Modeling the minimal cell: Integration of experiments, theory, and simulations|Joseph Henry Room

**Modeling the minimal cell: Integration of experiments, theory, and simulations**

### High Energy Theory - The non-local non-linear sigma model - Christian Jepsen - Princeton

In this talk, based on work with S. Gubser, Z. Ji, B. Trundy, and A. Yarom, I present a scalar theory described by an action given in terms of a bi-local integral of a power law factor, with an exponent parameter s, multiplied by the squared arc length between points on the target manifold.

### Hamilton Colloquium Series, Gerard 't Hooft, Utrecht University, "The Quantum Black Hole: How Exotic Physics May Enter"

Quantising a black hole can be done starting with conventional physics. We just assume matter to keep the form of point particles until they come close to the horizon. The gravitational back reaction of these particles generates a novel relation between particles going in and particles going out, enabling us to transform in-going particles into...

### "A Look at Hadronization via High Multiplicity" Elena Kokoulina-JINR-Dubna

Multiparticle production is studied experimentally and theoretically in QCD that describes interactions in the language of quarks and gluons. In the experiment the real hadrons are registered. For transfer from quarks and gluons to observed hadrons various phenomenological models are used.

### Physics Group at IAS | Greg Moor, Rutgers University | “A brief review of some work on BPS states, wall-crossing, hyperkahler geometry, Hitchin systems, etc.” | Bloomberg Lecture Hall

This talk will give a brief overview focused on six papers written by D. Gaiotto, G. Moore, and A. Neitzke

loosely centered around the topics mentioned in the title. The papers are on the arXiv.

Background reading: Some short reviews are:

https://arxiv.org/pdf/1211.2331....

### Pheno & Vino Seminar | Yushin Tsai, U. of Maryland | "Large Scale Structure Signals of Neutrino Decay" | Jadwin 303

In the next decade, improvements in the CMB and Large Scale Structure (LSS) measurements will make the universe an excellent laboratory for neutrino physics. Besides knowing the sum of neutrino masses, we can better answer questions about neutrino properties, such as how long the SM neutrinos can live?

### FPO - Yonglong Xie - "Visualizing emergent phenomena in quantum materials: from Majorana zero mode to many-body correlations"

Topology and correlation, fundamental ingredients that often dictate the ground states of quantum matter, leave distinct local electronic fingerprints that can be detected with scanning tunneling microscopy (STM).

### HET Seminar | Amit Sever, CERN | "The Holographic Dual of Strongly γ-deformed N=4 SYM Theory" | Bloomberg Lecture Hall

We present a first-principles derivation of a weak-strong duality between the four-dimensional fishnet theory in the planar limit and a discretized string-like model living in AdS5. At strong coupling, the dual description becomes classical and we demonstrate explicitly the classical integrability of the model.

### Biophysics Seminar: Bill Bialek & Josh Shaevitz: State of the Center|Joseph Henry Room

### Memorial Service for Professor Steven Gubser

Please join us for a celebration of life for Professor Steven Gubser.

The Princeton University Chapel

10:00 am

### Hamilton Colloquium Series, Silviu Pufu, Princeton University "Conformal Field Theory: From Boiling Water to Quantum Gravity"

Conformal Field Theory (CFT) is a framework used to describe physical systems with no intrinsic length or energy scales. CFTs have wide applicability across theoretical physics, ranging from critical points in the phase diagrams of water or magnetic materials to the low-energy dynamics of extended objects in string theory.

### FPO - Wudi Wang - Search for Superconducting Edge Mode in Topological Materials

Abstract

### Condensed Matter Seminar, Umesh Vazirani, EECS Berkeley, | "Computational Pseudorandomness and Susskind's Wormhole Paradox " | PCTS Seminar Room 407

The AdS/CFT correspondence conjectures a duality between a theory of quantum gravity in Anti de Sitter space and a conformal field theory. Susskind identified an interesting paradox in this correspondence: namely some aspects of the behavior of eternal black holes, which partition space-time into two distinct regions connected by a “wormhole...

### SO SMuRF/DAQ User Interface Meeting | 202 Jadwin Hall

### FPO - Matteo Ippoliti - Geometric distortions and quantum criticality in the lowest Landau level

The quantum Hall effect encompasses a large variety of phases and phenomena arising from the combination of topological bands (the Landau levels), strong electron-electron interactions, and disorder. This thesis consists of an in-depth numerical study of some of these fascinating phenomena.

### FPO - Peter Brown - "Probing dynamical quantities in the 2D Fermi-Hubbard model with quantum gas microscopy"

The recent development of fermionic quantum gas microscopes has enabled studies of cold atom Fermi-Hubbard systems with single-site resolution, revealing a variety of interesting phenomena in regimes which are difficult to access with existing theory techniques.

### Atomic Physics Seminar | Tao Wang, Berkeley | Title to be announced | Jadwin 303

Abstract to be announced.

### Atomic Physics Seminar | Tao Wang, Berkeley | "Ultrahigh Sensitivity Magnetometry and its Applications to Dark Matter Researches" | Jadwin 303

Dark matter and dark energy are the most abundant yet mysterious substances in the Universe. Axions and axion-like particles (ALP) have emerged as theoretically well-motivated dark-matter candidates. Ultrahigh sensitivity magnetometers play important roles in dark matter searches.