Format results

10 talksCollection Number C22040
Talk

Panel Session: 'Forest vs Trees'

Lauren Hayward Perimeter Institute for Theoretical Physics

Sabrina Pasterski Perimeter Institute for Theoretical Physics

Anthony Leggett University of Illinois at UrbanaChampaign (UIUC)

Donna Strickland University of Waterloo

Timothy Hsieh Perimeter Institute for Theoretical Physics
PIRSA:22100073 

Perimeter Researcher Talk  'Into the woods ... ... and through the trees to gravity, amplitudes, and CFTs'
Sabrina Pasterski Perimeter Institute for Theoretical Physics
PIRSA:22100072 
Special Guest Talk  'From nonlinear optics to high intensity laser physics'
Donna Strickland University of Waterloo
PIRSA:22100071 
Perimeter Researcher Talk  'Measurement as a shortcut to longrange entangled matter'
Timothy Hsieh Perimeter Institute for Theoretical Physics
PIRSA:22100070 
Special Guest Talk  'The serendipitous road to a Nobel prize'
Anthony Leggett University of Illinois at UrbanaChampaign (UIUC)
PIRSA:22100069 
Panel Session: Luck vs Grit

Asimina Arvanitaki Perimeter Institute for Theoretical Physics

Arthur B. McDonald Queen's University
 Katie Mack
PIRSA:22100068 


Special Guest Talk  'How to take a picture of a black hole'
Shep Doeleman Harvard University
PIRSA:22100066


Quantum Gravity Around the Corner
29 talksCollection Number C22029Talk

Conclusive Remarks

Luca Ciambelli Perimeter Institute for Theoretical Physics

Celine Zwikel Perimeter Institute for Theoretical Physics


WaldZoupas vs. improved Noether charge: anomalies as soft terms at scri
Simone Speziale Centre de Physique Théorique (CPT)

Carrollian spaces at infinity: an embedding space picture
Jakob Salzer Université Libre de Bruxelles

Flat asymptotics, charges and dual charges  what the Cotton can do
Marios Petropoulos The French National Centre for Scientific Research

Hamiltonian Gauge Theory With Corners II: memory as superselection in null YM theory
Aldo Riello Perimeter Institute for Theoretical Physics

Geometric actions for BMS4
Glenn Barnich Université Libre de Bruxelles (ULB)




Quantum Theory (20222023)
14 talksCollection Number C22035Talk



Quantum Theory  Lecture 220928
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:22090043 
Quantum Theory  Lecture 220927
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:22090042 
Quantum Theory  Lecture 220926
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:22090041 
Quantum Theory  Lecture 220923
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:22090040 
Quantum Theory  Lecture 220921
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:22090039 
Quantum Theory  Lecture 220919
Dan Wohns Perimeter Institute for Theoretical Physics
PIRSA:22090038


Classical Physics (2022/2023)
14 talksCollection Number C22039Talk






Classical Physics  Lecture 220923
Meenu Kumari Perimeter Institute for Theoretical Physics
PIRSA:22090052 
Classical Physics  Lecture 220919
Meenu Kumari Perimeter Institute for Theoretical Physics
PIRSA:22090051 


School on TableTop Experiments for Fundamental Physics
27 talksCollection Number C22030Talk



Properties of cavities

Konrad Lehnert University of Colorado
 Konrad Lehnert


Photon sensors

Sae Woo Nam National Institute of Standards & Technology
 Sae Woo Nam


FluctuationDissipation theorem
Asimina Arvanitaki Perimeter Institute for Theoretical Physics

Photon sensors

Sae Woo Nam National Institute of Standards & Technology
 Sae Woo Nam


Properties of cavities

Konrad Lehnert University of Colorado
 Konrad Lehnert




Graduate Students’ Conference 2022
Collection Number C22032 
Cold Atom Molecule Interactions (CATMIN)
22 talksCollection Number C22028Talk

Quantum state control of ultracold chemistry
Alan Jamison Institute for Quantum Computing (IQC)

Photonbubble turbulence in cold atomic gases
Hugo Terças Instituto de Plasmas e Fusão Nuclear

Rydberg atoms in BoseEinstein condensed environments: cold bubble chambers and mesoscopic entanglement
Sebastian Wüster Indian Institute of Science Education and Research Bhopal


Towards an optogalvanic flux sensor for nitric oxide based on Rydberg excitations
Harald Kübler University of Stuttgart

Opportunities and Limitations for Warm Rydberg Electric Field Sensors
Paul Kunz Army Research Laboratories

Advances in Sensitivity and Pulse Detection with RydbergAtom Electrometry
Stephanie Bohaichuk Quantum Valley Ideas Laboratories

Coherent Light Shift of AlkalineEarth Rydberg Atoms
Patrick Cheinet Laboratoire Aimé Cotton, CNRS


QFT for Mathematicians 2022
28 talksCollection Number C22011Talk

Discussion on Langlands

David BenZvi University of Texas  Austin

Alexander Braverman University of Toronto

Davide Gaiotto Perimeter Institute for Theoretical Physics

Philsang Yoo Seoul National University


Lie superalgebras and Sduality
Alexander Braverman University of Toronto

The relative Langlands program via gauge theory cont.
David BenZvi University of Texas  Austin

The relative Langlands program via gauge theory
David BenZvi University of Texas  Austin

Discussion on 4d N=2

Davide Gaiotto Perimeter Institute for Theoretical Physics

Lotte Hollands HeriotWatt University  Maxwell Institute for Mathematical Sciences

Joerg Teschner Deutsches ElektronenSynchrotron, DESY  Theory Group

Fei Yan Rutgers University


Field theory in the 1/2 Omegabackground cont.
Lotte Hollands HeriotWatt University  Maxwell Institute for Mathematical Sciences

Field theory in the 1/2 Omegabackground
Lotte Hollands HeriotWatt University  Maxwell Institute for Mathematical Sciences

Discussion on 3d Amodel

Tudor Dimofte University of Edinburgh

Benjamin Gammage Harvard University

Justin Hilburn Perimeter Institute for Theoretical Physics

Ahsan Khan Institute for Advanced Study (IAS)



Young Researchers Conference
17 talksCollection Number C22027Talk


Viewing asymptotic symmetries through conformal mappings
Hong Zhe Chen Perimeter Institute for Theoretical Physics

Black Hole Thermalization from Microstate Spectral Statistics
Krishan Saraswat Perimeter Institute for Theoretical Physics

Asymptotic charges in Maxwell theory.
Nicolas Cresto Perimeter Institute for Theoretical Physics

Minimax surfaces and the covariant holographic entropy cone
Guglielmo Grimaldi Brandeis University  The Martin Fisher School of Physics

Is singularity resolution trivial?
Ding Jia Perimeter Institute for Theoretical Physics

On the continuum limit of spin foams: graviton dynamics and area metric induced corrections
Athanasios Kogios Perimeter Institute for Theoretical Physics



Global Categorical Symmetries
34 talksCollection Number C22008Talk


Lattice systems and topological field theories
Michael Hopkins Harvard University


Lattice systems and topological field theories
Michael Hopkins Harvard University






Quantum Criticality: Gauge Fields and Matter
27 talksCollection Number C22009Talk

Quantum Criticality in the 2+1d Thirring Model
Simon Hands University of Liverpool

(Multi)Critical Point, and Potential Realization with infinite Fractal Symmetries
Cenke Xu University of California




Fractionalized fermionic quantum criticality
Lukas Janssen Technische Universität Dresden

Bootstrapping critical gauge theories
YinChen He Perimeter Institute for Theoretical Physics

Multiband superconductivity and the breaking of time reversal symmetry
Igor Herbut Simon Fraser University (SFU)


Quantum Gravity (20212022)
13 talksCollection Number C22022Talk

The Day of Discovery
10 talksCollection Number C22040Join us for a day that celebrates the advance of human knowledge! Come and hear from scientific luminaries responsible for defining the modern landscape of physics and working to transform it in the future. Presentations by Nobel and Breakthrough Prize winners will describe some of the most exciting topics in science today, followed by talks by Perimeter researchers on how these are being pursued now, and culminating with animated panel conversations on how breakthrough science was, is and will be done.
https://pirsa.org/C22040
Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.

Quantum Gravity Around the Corner
29 talksCollection Number C22029There has been recent activity in looking for new conserved charges and symmetries in gravity, most notably at infinity but also for finite regions. An important question is whether some of these charges and symmetries have physical implications. These charges are evaluated on codimension2 surfaces called corners, which constitute the main focus of this conference. The goal is to bring together leading experts and promote discussions and exchanges among different approaches to (quantum) gravity.
Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.

Quantum Theory (20222023)
14 talksCollection Number C22035This course on quantum mechanics is divided in two parts:
The aim of the first part is to review the basis of quantum mechanics. The course aims to provide an overview of the perturbation theory to handle perturbations in quantum systems. Time evolution of quantum systems using the Schrodinger, Heisenberg and interaction pictures will be covered. Basics of quantum statistical mechanics for distinguishable particles, bosons, and fermions will be covered. A brief overview of density matrix approach and quantum systems interacting with the environment will be given.
The second part of the course is an introduction to scalar quantum field theory. The Feynman diagram technique for perturbation theory is developed and applied to the scattering of relativistic particles. Renormalization is briefly discussed. 
Classical Physics (2022/2023)
14 talksCollection Number C22039This is a theoretical physics course that aims to review the basics of theoretical mechanics, special relativity and classical field theory, with the emphasis on geometrical notions and relativistic formalism.

School on TableTop Experiments for Fundamental Physics
27 talksCollection Number C22030This School aims at bringing together graduate students and junior postdocs, both theorists and experimentalists, who are interested in proposing and realizing new tabletop experiments to test fundamental physics. The goal is to allow them to interact and learn from each other, forming a community.
The School will consist of some theoretical lectures for experimentalists, and experimental lectures for theorists. The scope is to offer basic and relevant notions of each field to physicists with a different background, in order to fill some of the gaps of the respective academic curricula.
The theoretical lectures will cover a review of the Standard Model with emphasis on precision tests, such as the search of new longrange forces and of electrical dipole moments. Another main topic will be a focused introduction on Dark Matter, looking at its cosmological production mechanisms, its impact on astrophysics and cosmology, and its laboratory detection.
On the experimental side, the School will cover a range of techniques for probing weak electromagnetic fields, short distance forces, single photons, fundamental electric dipole moments, as well as atom interferometers and optomechanical sensors.Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.

Graduate Students’ Conference 2022
Collection Number C22032The annual Graduate Students’ Conference showcases the diverse research directions at Perimeter Institute, both organized and presented by the students. Our graduate students are invited to share their best work with their fellow PhD students, PSI students and other PI residents interested in hearing about the physics and discussing it in a lively atmosphere full of questions.
Perimeter Institute will make every effort to host the conference as an inperson event. However, we reserve the right to change to an online program to align with changes in regulations due to the COVID19 pandemic.
Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.

Cold Atom Molecule Interactions (CATMIN)
22 talksCollection Number C22028In the first edition of the meeting, CATMIN (Cold ATom Molecule INteractions) was a new satellite meeting of ICPEAC devoted to the study of atomic and molecular systems, where longrange interactions and the extreme properties of highly excited electrons produce new physics and lead to new technologies. CATMIN's objective is to strengthen the links between cold atom physics, molecular physics, chemistry and condensed matter physics, so that new concepts and breakthroughs can emerge. Ions, atoms and molecules are naturally made quantum systems that can be controlled with light and low frequency electromagnetic fields, thus lending themselves to precision investigations and use in quantum technologies. The second CATMIN conference will be held a few days before the ICAP, which is a major conference in AMO physics, with the idea that scientists can attend both meetings. The CATMIN meeting will be a twoday conference held at the Perimeter Institute in Waterloo, ON, centered on Rydbergatom physics, cold ion physics and the interplay between these experimental platforms. Rydberg atom physics is experiencing a renaissance due to the application of the exaggerated properties of highly excited atoms for quantum information and quantum simulation. Rydberg states can even be observed in solids which is a subject of increasing interest. Cold ions, similarly, are exciting for quantum simulation and computing, becoming one of the central platforms in the race to build a quantum computer. Many exciting developments are also in progress in the area of coldmolecules. Longrange interactions open up fields of research such as the photoassociation of cold atoms to form ultracold molecules, and the excitation of Rydberg molecules demonstrating novel kinds of molecular bonding. Strong longrange interactions in all the systems permit the investigation of the fewbody and manybody regimes, including the few to manybody transition. The conference aims to share the latest developments and results in these exciting fields among the various ICAP communities as well as the broader physics and chemistry communities. Overall, the conference can forward quantum science and the application of quantum science, which furthers these fields of research by concentrating interest to attract people and resources to the field.
Sponsorship for this event has been provided by:
Perimeter Institute will make every effort to host the conference as an inperson event. However, we reserve the right to change to an online program to align with changes in regulations due to the COVID19 pandemic.
Territorial Land Acknowledgement
Perimeter Institute acknowledges that it is situated on the traditional territory of the Anishinaabe, Haudenosaunee, and Neutral peoples.
Perimeter Institute is located on the Haldimand Tract. After the American Revolution, the tract was granted by the British to the Six Nations of the Grand River and the Mississaugas of the Credit First Nation as compensation for their role in the war and for the loss of their traditional lands in upstate New York. Of the 950,000 acres granted to the Haudenosaunee, less than 5 percent remains Six Nations land. Only 6,100 acres remain Mississaugas of the Credit land.
We thank the Anishinaabe, Haudenosaunee, and Neutral peoples for hosting us on their land.




Quantum Criticality: Gauge Fields and Matter
27 talksCollection Number C22009Quantum Criticality: Gauge Fields and Matter 
Quantum Gravity (20212022)
13 talksCollection Number C22022Topics will include (but are not limited to): Canonical formulation of constrained systems, The Dirac program, First order formalism of gravity, Loop Quantum Gravity, Spinfoam models, Research at PI and other approaches to quantum gravity.