Format results

Collection Number C18034

Graduate Student Conference
Collection Number C18025 
Higher Algebra and Mathematical Physics
21 talksCollection Number C18024Talk

Welcome and Opening Remarks

Theo JohnsonFreyd Dalhousie University

Andre Henriques University of Oxford
PIRSA:18080042 

N=1 supersymmetric vertex algebras of small index
Davide Gaiotto Perimeter Institute for Theoretical Physics

Geometric Langlands: Comparing the views from CFT and TQFT
Joerg Teschner Deutsches ElektronenSynchrotron, DESY  Theory Group

Cutting and gluing branes
David Nadler University of California, Berkeley

The lowenergy TQFT of the generalized double semion model
Arun Debray University of Texas  Austin


Moduli of connexions on open varieties
Bertrand Toen Paul Sabatier University

The Duistermaat–Heckman distribution for the based loop group
Lisa Jeffrey University of Toronto


Foundations of Quantum Mechanics
17 talksCollection Number C18020Talk

Welcome and Opening Remarks
Lucien Hardy Perimeter Institute for Theoretical Physics



Local quantum operations and causality
Robert Oeckl Universidad Nacional Autónoma De Mexico (UNAM)

Towards synthetic Euclidean quantum field theory
Tobias Fritz Universität Innsbruck

Almost quantum correlations violate the norestriction hypothesis
Ana Belen Sainz Gdańsk University of Technology

A deviceindependent approach to testing physical theories from finite data
YeongCherng Liang National Cheng Kung University

Quantum axiomatics à la carte
Alexander Wilce Susquehanna University


TriInstitute Summer School on Elementary Particles 2018
39 talksCollection Number C18015Talk

Low Energy Challenges for High Energy Physicists 3
16 talksCollection Number C18013Talk

Emergent Gravity From Relatively Local Hamiltonians
SungSik Lee McMaster University

Strange Metals From Local Quantum Chaos
John McGreevy University of California, San Diego
PIRSA:18060028 


Holographic Solids: Transverse Phonons and Elastic Response
Lasma Alberte International School for Advanced Studies
PIRSA:18060031 
Particle Physics Beyond Colliders
Asimina Arvanitaki Perimeter Institute for Theoretical Physics
PIRSA:18060032 



Path to Kilohertz GravitationalWave Astronomy
17 talksCollection Number C18014Talk


Hitting the High Notes: The High Frequency Dynamics of Neutron Star Mergers
William East Perimeter Institute for Theoretical Physics
PIRSA:18060045 
PostMerger Gravitational Wave Emission
Andreas Bauswein Max Planck Institute for Astrophysics (MPA), Garching
PIRSA:18060046 
Searching for Ultralight Particles with Gravitational Waves
Masha Baryakhtar University of Washington
PIRSA:18060047 
3G Detectors, Voyager
Rana Adhikari California Institute of Technology (Caltech)  Division of Physics Mathematics & Astronomy
PIRSA:18060048 

Gravitational Wave Telescopes: Some Cosmological Considerations
Latham Boyle University of Edinburgh
PIRSA:18060050 
Astrophysics and Cosmology with GravitationalWave Population Inference
Eric Thrane Monash University  Department of Physics
PIRSA:18060051


Asymptotic Safety in a Dark Universe
17 talksCollection Number C18012Talk

Charting Fundamental Interactions
Francesco Sannino CP3Origins

Asymptotic safety with and without supersymmetry
Daniel Litim University of Sussex


Progress in constructing an Asymptotically safe Standard Model
Steven Abel Durham University

Cosmological nonConstant Problem
Niayesh Afshordi University of Waterloo


UVcomplete relativistic field theories and softened gravity
Alberto Salvio Scuola Normale Superiore di Pisa

Asymptotic safety of gravitymatter systems and effective universality
Manuel Reichert University of Southern Denmark


Open EFT's and Gravity as a Medium
Collection Number C18032 
Career Trajectories Day
2 talksCollection Number C18009Talk

Searching for New Particles with Black Hole Superradiance
11 talksCollection Number C18010Talk

Searching for Light Bosons with Black Hole Superradiance
Savas Dimopoulos Perimeter Institute for Theoretical Physics

Superradiant instabilities and rotating black holes
Sam Dolan University of Southampton
PIRSA:18050028 
Superradiant instabilities and rotating black holes
Avery Broderick University of Waterloo

Measuring StellarMass Black Hole Spins via Xray Spectroscopy
James Steiner Massachusetts Institute of Technology (MIT)

Superradiance Beyond the Linear Regime
Frans Pretorius Princeton University

Characterization of compact objects with present and future groundbased gravitationalwave detectors
Salvatore Vitale Massachusetts Institute of Technology (MIT)

LIGO and Virgo continuous wave searches  Overview and allsky searches
keith Riles University of Michigan–Ann Arbor

Directed and targeted searches for continuous gravitational waves
Sylvia Zhu Albert Einstein Institute


PINRC Meeting
11 talksCollection Number C18011Talk


Attosecond Quantum Spectroscopy Measurement
David Villeneuve National Research Council Canada (NRC)

Efficient Preparation of Nontrivial Quantum States
Timothy Hsieh Perimeter Institute for Theoretical Physics

Time And Gravity Measurement
Pierre Dube National Research Council Canada (NRC)


Canadian Astronomy Data Center: Tools and Analytics for Large Data Sets
Sebastien Fabbro National Research Council Canada (NRC)


SI Unit Fundamental Measurements

Angela Gamouras National Research Council Canada (NRC)

Barry Wood National Research Council Canada (NRC)
PIRSA:18050045 


Wide Field Astronomy in Canada
Collection Number C18034Canada has great ambitions in the area of widefield astronomical surveys and a strong heritage. On the eve of the Canadian Long Range Plan 2020 this workshop brings together the Canadian wide field astronomy community to discuss our strategy including possible areas of scientific and technical coordination. We will review existing and nearterm surveys on facilities including CFHT MWA CHIME Dragonfly Gaia SDSSV DESI Euclid and LSST as well as future projects like MSE and SKA1 on the ground and WFIRST and CASTOR in space. Invited talks will highlight areas of rapid expansion including time domain astrophysics and radio surveys as well as data archives and computing platforms like CADC Canfar and CIRADA that enable the exploitation of wide field and timedomain data by the community. Our activities aim to ensure that wide field and timedomain science emerge with strong support in LRP2020 and are able to attract significant funding.

Graduate Student Conference
Collection Number C18025This will be a two day event whereby graduate students will present their research to PSI students

Higher Algebra and Mathematical Physics
21 talksCollection Number C18024Higher algebra has become important throughout mathematics physics and mathematical physics and this conference will bring together leading experts in higher algebra and its mathematical physics applications. In physics the term algebra is used quite broadly any time you can take two operators or fields multiply them and write the answer in some standard form a physicist will be happy to call this an algebra. Higher algebra is characterized by the appearance of a hierarchy of multilinear operations (e.g. A_infty and L_infty algebras). These structures can be higher categorical in nature (e.g. derived categories cosmology theories) and can involve mixtures of operations and cooperations (Hopf algebras Frobenius algebras etc.). Some of these notions are purely algebraic (e.g. algebra objects in a category) while others are quite geometric (e.g. shifted symplectic structures). An early manifestation of higher algebra in highenergy physics was supersymmetry. Supersymmetry makes quantum field theory richer and thus more complicated but at the same time many aspects become more tractable and many problems become exactly solvable. Since then higher algebra has made numerous appearances in mathematical physics both high and lowenergy. A telltale sign of the occurrence of higher structures is when classification results involve cohomology. Group cohomology appeared in the classification of condensed matter systems by the results of Wen and collaborators. Altland and Zirnbauer s "tenfold way" was explained by Kitaev using Ktheory. And Kitaev's 16 types of vortexfermion statistics were classified by spin modular categories. All these results were recently enhanced by the work of Freed and Hopkins based on cobordism theory. In high energy physics cohomology appears most visibly in the form of "anomalies". The ChernSimons anomaly comes from the fourth cohomology class of a compact Lie group and the 5brane anomaly is related to a certain cohomology class of the Spin group. The classification of conformal field theories involves the computation of all algebras objects in certain monoidal categories which is a type of nonabelian cohomology. Yet another important role for higher algebra in mathematical physics has been in the famous Langlands duality. Langlands duality began in number theory and then became geometry. It turned into physics when Kapustin and Witten realized geometric Langlands as an electromagnetic duality in cN=4 super YangMills theory. Derived algebra higher categories shifted symplectic geometry cohomology and supersymmetry all appear in Langlands duality. The conference speakers and participants drawn from both sides of the Atlantic and connected by live video streams will explore these myriad aspects of higher algebra in mathematical physics.

Foundations of Quantum Mechanics
17 talksCollection Number C18020The foundations of quantum mechanics have been revitalized in the past few decades by three developments: (i) the influence of quantum computation and quantum information theory (ii) studies of the interplay between quantum theory and relativity particularly the analysis of indefinite causal structure and (iii) proposals to reconstruct quantum theory from basic axioms. There have also been very interesting developments in understanding and classifying no=locality and contextuality using tools from sheaf theory and cohomology as well as operator algebras and category theory. The International Congress of Mathematical Physics is a natural forum for the discussion of these topics. In the past there have been satellite workshops on topics like Operator algebras and quantum statistical mechanics which also address fundamental issues. The modern study of quantum foundations is very much influenced and informed by mathematics: sheaf theory and cohomology category theory information theory convex analysis in addition to the continuing interest in operator algebras and functional analysis. The aim of the workshop is to bring together researchers who have made substantial contribution to the recent developments. The workshop will be held at Perimeter Institute over a five day period from July 30

TriInstitute Summer School on Elementary Particles 2018
39 talksCollection Number C18015The 2018 TriInstitute Summer School on Elementary Particles (TRISEP) will be held July 920 2018 in Perimeter Institute for Theoretical Physics Waterloo ON, Canada. TRISEP is an international summer school organized jointly by the Perimeter Institute for Theoretical Physics, SNOLAB, and TRIUMF Canada s laboratory for particle and nuclear physics. TRISEP will feature lectures by leading experts in the field of particle physics in its broadest sense and is designed to be very interactive with ample time for questions, discussions and interaction with the speakers. The school is intended for graduate students of all levels who were already exposed to quantum field theory. For further information, please visit http:///.trisep.ca

Low Energy Challenges for High Energy Physicists 3
16 talksCollection Number C18013Throughout the history of quantum field theory there has been a rich crosspollination between high energy and condensed matter physics. From the theory of renormalization to the consequences of spontaneous symmetry breaking this interaction has been an incredibly fruitful one. In the last decade there has been a strong resurgence of interest in condensed matter systems in the high energy theoretical physics community. Taking advantage of developments in conformal field theories the conformal bootstrap gauge/gravity and other type of dualities as well as effective field theory techniques high energy theorists with all kinds of specialist backgrounds are thinking about the diverse behavior exhibited in low energy physical systems. Recent developments also employed quantum field theory ideas to improve our understanding of condensed and quantum matter systems as for example Femi liquids strange metals or the behavior of topological defects in ultra cold atom gases. For certain questions such approaches present relevant advantages with respect to more traditional techniques. Moreover in recent years the interplay between high energy and condensed matter physics found new fuel in the search for light dark matter. Indeed theoretical analyses have recently shifted the attention towards model for subGeV dark matter. The condensed matter community has played a crucial role in the design of possible new materials and detectors that could allow the observation of such particles. The aim of this workshop is to bring together likeminded high energy theorists with appropriate condensed matter theorists and experimentalists to tackle some of the most interesting problems in modern physics. The format has been designed to allow for plenty of time for open discussion and interaction between the participants. This will reinvigorate existing collaborations as well as create new fruitful ones.

Path to Kilohertz GravitationalWave Astronomy
17 talksCollection Number C18014We are entering an exponentially growing phase of gravitationalwave (GW) astronomy excitingly represented by the Nobel Prize in Physics last year  only two years after the first detection. The successful multimessenger detection of binary neutron star merger in last August has triggered increasing interests to probe the neutron star postmerger gravitational radiations as they will give more decisive and informative description of the postmerger object itself and the GW/electromagnetic emission mechanism. As the postmerger GWs mainly lie in the 1kHz4kHz band it becomes necessary and important to think about possible thirdgeneration GW detectors that are primarily sensitive to the high frequency band.Â In this workshop we shall focus on possible science case and detector configuration for kHz highfrequency detectors. We will have several invited talks while leaving more time for free discussions. We hope this workshop can serve as a seed for much broader discussions in the GW astronomy community and help promote high frequency detectors as one of the development directions of thirdgeneration GW detectors.

Asymptotic Safety in a Dark Universe
17 talksCollection Number C18012The asymptotic safety paradigm is currently emerging as a highly promising idea for BeyondStandardModel physics with key progress in asymptotically safe quantum gravity and asymptotically safe matter models. The last years have seen not only the development of asymptotically safe gravitymatter models but also the discovery of asymptotically safe beyond Standard Model matter models that are under control in perturbation theory. New exciting avenues in (astro) particle physics are now waiting to be explored. For example although the nature of dark matter is a longstanding riddle it is a fact that experimental searches have so far not provided any direct clues but have instead come up with ever more stringent constraints on theoretically preferred regions of parameter space for darkmattermodels. Thus the key to unraveling this riddle could be a new theoretical paradigm to guide model builders. This workshop aims at exploring whether asymptotic safety can be a candidate for this new paradigm. We aim to bring together experts on phenomenological models and quantum gravity to probe both the theoretical viability and empirical signatures of asymptotically safe extensions of the standard model that include gravity. To facilitate a highly productive meeting that can trigger new collaborations each talk will be followed up by 1520 minutes discussion time. Further each day of the workshop will feature a dedicated discussion session. Participants will be encouraged to contribute questions for the discussion both before as well as during the workshop. The last day of the workshop will conclude with a roadmap discussion during which all participants will be given the opportunity to propose concrete suggestions for followup work that might lead into future joint projects.

Open EFT's and Gravity as a Medium
Collection Number C18032This event is meant to study the connections between quantum fields in curved spacetimes with horizons and the effective field theory methods as applied to open systems (Open EFTs). In particular the hope is to exploit the existence of tools (from areas like optics) for dealing with hierarchies of scale in open systems and adapt the to see if they can inform our understanding of controlling latetime predictions in gravitational environments. Please note that this meeting is by invitation only.

Career Trajectories Day
2 talksCollection Number C18009What can you do with a Physics degree? Plenty although the reality is that most people being trained in physics at the undergraduate graduate or even postdoctoral levels aren't aware of the broad spectrum of opportunities available to them. The problem solving skills necessary to succeed in physics are sought after in a wide range of technology financial and industrial sectors. This day will bring together current students and postdocs in theoretical physics with former students who have found great success in a wide range of different areas from startups to big companies finance and even bestselling novels. Many of them were affiliated with Perimeter Institute and chose their career paths over opportunities in academia. Through a combination of talks and panel sessions this day will showcase the many career possibilities available to young physicists steps they can take to explore these options and how to avoid the inevitable pitfalls. Lunch will be provided and there will ample opportunities to ask questions and network.

Searching for New Particles with Black Hole Superradiance
11 talksCollection Number C18010Black hole superradiance is a fascinating process in general relativity and a unique window on ultralight particles beyond the standard model. Bosons  such as axions and dark photons  with Compton wavelengths comparable to size of astrophysical black holes grow exponentially to form large clouds spinning down the black hole in the process and produce monochromatic continuous gravitational wave radiation. In the era of gravitational wave astronomy and increasingly sensitive observations of astrophysical black holes and their properties superradiance of new light particles is a promising avenue to search for new physics in regimes inaccessible to terrestrial experiments. This workshop will bring together theorists data analysts and observers in particle physics gravitational wave astronomy strong gravity and high energy astrophysics to explore the signatures of black hole superradiance and to study the current and future possibilities of searching for new particles with black holes.

PINRC Meeting
11 talksCollection Number C18011