Format results
-
-
Talk
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
GPTs and the probabilistic foundations of quantum theory - Lecture
Alexander Wilce Susquehanna University
-
-
Talk
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Quantum Information Lecture
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
-
Talk
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
Quantum Foundations Lecture
Lucien Hardy Perimeter Institute for Theoretical Physics
-
-
Talk
-
-
QPV: An Overview and Reflections
Harry Buhrman Centrum Wiskunde & Informatica
-
Popescu-Rohrlich correlations imply efficient instantaneous nonlocal quantum computation
Anne Broadbent University of Ottawa
PIRSA:23090023 -
Non-local quantum computation meets quantum gravity
Alex May Perimeter Institute
-
Quantum Error-Correction and Holographic Task
Beni Yoshida Perimeter Institute for Theoretical Physics
-
-
Protocols and Implementations of Quantum Position Verification
-
Eric Chitambar University of Illinois Urbana-Champaign
-
Paul Kwiat University of Illinois
-
-
-
-
Talk
-
Welcome and Opening Remarks
Elie Wolfe Perimeter Institute for Theoretical Physics
-
Tutorial 1
Robert Spekkens Perimeter Institute for Theoretical Physics
-
Graphical models: fundamentals, origins, and beyond
Steffen Lauritzen University of Copenhagen
-
Towards standard imsets for maximal ancestral graphs
Robin Evans University of Oxford
-
-
Correlations from joint measurements in boxworld and applications to information processing
Mirjam Weilenmann Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
PIRSA:23040107 -
Observational Equivalences Between Causal Structures with Latent Variables
Marina Maciel Ansanelli Perimeter Institute for Theoretical Physics
-
-
-
Talk
-
Quantum adiabatic speedup on a class of combinatorial optimization problems
-
Madelyn Cain Harvard University
- Madelyn Cain
-
-
Towards an artificial Muse for new ideas in Quantum Physics
Mario Krenn Max Planck Institute for the Science of Light
-
-
Self-Correcting Quantum Many-Body Control using Reinforcement Learning with Tensor Networks
Friederike Metz L'Ecole Polytechnique Federale de Lausanne (EPFL)
-
A Study of Neural Network Field Theories
Anindita Maiti Perimeter Institute for Theoretical Physics
-
-
Representing quantum states with spiking neural networks
-
Stefanie Czischek University of Ottawa
- Stefanie Czischek
-
-
Adaptive Quantum State Tomography with Active Learning
Hannah Lange Ludwig-Maximilians-Universitiät München (LMU)
-
-
Talk
-
Introduction & Welcoming Remarks
James Shaffer Quantum Valley Ideas Laboratories
-
Perimeter Greeting
Paul Smith Perimeter Institute for Theoretical Physics
-
-
Indirect spin-spin interactions with Rydberg molecules
Hossein Sadeghpour Harvard University
-
-
-
Polyatomic ultralong range Rydberg molecules
Rosario Gonzalez-Ferez University of Granada
-
Observation of linewidth narrowing in EIT polarization spectroscopy involving hot Rydberg atoms with Laguerre Gaussian modes
Luis Marcassa Universidade Estadual Paulista (UNESP)
-
-
Talk
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030081 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030080 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030079 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030078 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030077 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030076 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030075 -
-
Quantum Information 2021/2022
-
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
-
Philippe Allard Guerin Royal Military College Saint-Jean
PIRSA:22030074 -
-
-
Talk
-
Welcome and Opening Remarks
-
Alexander Smith Saint Anselm College
-
Flaminia Giacomini ETH Zurich
-
-
-
Kappa-Minkowski: physics with noncommutative time
Flavio Mercati University of Naples Federico II
-
Quantizing causation
Robert Spekkens Perimeter Institute for Theoretical Physics
-
Non-causal Page-Wootters circuits
Veronika Baumann Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
-
Quantum reference frames for space and space-time
Časlav Brukner Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
-
-
A New Perspective on Time Reversal Motivated by Quantum Gravity
Abhay Ashtekar Pennsylvania State University
-
-
Talk
-
Welcome and Opening Remarks
Bianca Dittrich Perimeter Institute for Theoretical Physics
-
Approaches to Quantum Gravity: Key Achievements and Open Issues
Hermann Nicolai Max-Planck-Institut für Gravitationsphysik
-
Quantum gravity from the loop perspective
Alejandro Perez Centre de Physique Théorique
-
Lessons for quantum gravity from quantum information theory
Daniel Harlow Massachusetts Institute of Technology (MIT)
-
Understanding of QG from string theory
Herman Verlinde Princeton University
-
Progress in horizon thermodynamics
Aron Wall University of Cambridge
-
Asymptotically Safe Amplitudes from the Quantum Effective Action
Frank Saueressig Radboud Universiteit Nijmegen
-
The Remarkable Roundness of the Quantum Universe
Renate Loll Radboud Universiteit Nijmegen
-
-
Causalworlds
Understanding causality is fundamental to science and inspires wide-ranging applications, yet there are several distinct notions of causation. Recently, there have been important developments on the role of causality in quantum physics, relativistic physics and their interplay. These have unearthed a plethora of fascinating open questions regarding the nature of causation, emergence of space-time structure and the limits of quantum information processing. At the same time, causal reasoning has become an important tool in machine learning and statistics, with applications ranging from big data to healthcare. This conference brings together experts from different areas of physics working on questions related to causality, as well as selected researchers who bridge the gap between fundamental research and current industrial applications. The aim of the conference is to provide a venue for cross-pollination of these ideas through scientific exchange between these communities. The conference will focus on the following facets of causality:
• Quantum and classical causal inference
• Indefinite causal order and quantum reference frames
• Causality in quantum field theory and quantum gravity
• Experiments and applications of causality
:: :: ::
Prospective speakers can submit a paper for a contributed talk and/or a poster via the Call for Abstracts. The Call for Abstracts is now open! Submissions for a talk will automatically be considered for a poster if not accepted for a talk.
:: :: ::
Scientific Organizers:
Hlér Kristjánsson (Perimeter Institute & IQC)
V Vilasini (ETH Zürich & INRIA Grenoble)
Robert Spekkens (Perimeter Institute)
Lucien Hardy (Perimeter Institute)
Elie Wolfe (Perimeter Institute)
Jacopo Surace (Perimeter Institute)
:: :: ::
-
Foundations of Quantum Computational Advantage
The workshop marks the halfway point of the similarly named (FoQaCiA, pronounced "focaccia") collaboration between researchers in Canada and Europe, funded as part of a flagship partnership between NSERC and Horizon Europe.
https://www.foqacia.org/
The goal of FoQaCiA is to develop new foundational approaches to shed light on the relative computational power of quantum devices and classical computers, helping to find the "line in the sand" separating tasks admitting a quantum speedup from those that are classically simulable.
The workshop will focus on the four central interrelated themes of the project:
1. Quantum contextuality, non-classicality, and quantum advantage
2. The complexity of classical simulation of quantum computation
3. The arithmetic of quantum circuits
4. The efficiency of fault-tolerant quantum computation
Our view is that the future success of quantum computing critically depends on advances at the most fundamental level, and that large-scale investments in quantum implementations will only pay off if they can draw on additional foundational insights and ideas.:: :: ::
Scientific Organizers:
Rui Soares Barbosa (INL - International Iberian Nanotechnology Laboratory)
Anne Broadbent (University of Ottawa)
Ernesto Galvão (INL - International Iberian Nanotechnology Laboratory)
Rob Spekkens (Perimeter Institute)
Jon Yard (Perimeter Institute):: :: ::
FoQaCiA is funded by:
-
GPTs and the probabilistic foundations of quantum theory - mini-course
Classical probability theory makes the (mostly, tacit) assumption that any two random experiments can be performed jointly. This assumption seems to fail in quantum theory. A rapidly growing literature seeks to understand QM by placing it in a much broader mathematical landscape of ``generalized probabilistic theories", or GPTs, in which incompatible experiments are permitted. Among other things, this effort has led to (i) a better appreciation that many "characteristically quantum" phenomena (e.g., entanglement) are in fact generic to non-classical probabilistic theories, (ii) a suite of reconstructions of (mostly, finite-dimensional) QM from small packages of assumptions of a probabilistic or operational nature, and (iii) a clearer view of the options available for generalizing QM. This course will offer a survey of this literature, starting from scratch and concluding with a discussion of recent developments.
Mathematical prerequisites: finite-dimensional linear algebra, ideally including tensor products and duality, plus some exposure to category theory (though I will briefly review this material as needed).
Scheduling note: There will be 5 lectures from March 12-26, then a gap of two weeks before the final 2 lectures held April 16 & 18.
Format: In-person only; lectures will be recorded for PIRSA but not live on Zoom.
-
-
-
QPV 2023: Advances in quantum position verification
Quantum position verification (QPV) schemes use the properties of quantum information and the relativistic signalling bound to verify the location of an object (sometimes called a “tag”) to distant observers in an environment that may contain would-be spoofers. The guarantee is based on the assumptions of the underlying security model; various theoretically and practically interesting security models have been proposed. The area is attracting increasing interest, with new theoretical developments in security analyses, emerging experimental studies of QPV systems, and recently discovered surprising and intriguing connections to topics in quantum gravity. A workshop on QPV will be held at the Perimeter Institute for Theoretical Physics.
The workshop will cover topics related to all aspects of QPV, including, but not limited to:
- Theoretical developments related to the security of QPV schemes, including development or refinement of security models, proofs of security within given models, tradeoffs between security and efficiency, and Experimental studies of QPV and theoretical work aimed at developing practical QPV schemes.
- QPV’s relationship to other cryptographic tasks and primitives.
- QPV’s relationship to holography and 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.
-
Causal Inference & Quantum Foundations Workshop
Recently we have seen exciting results at the intersection of quantum foundations and the statistical analysis of causal hypotheses by virtue of the centrality of latent variable models to both fields.
In this workshop we will explore how academics from both sides can move the shared frontiers forward. Towards that end, we are including extensive breakout collaboration opportunities in addition to formal presentations. In order to make concrete progress on problems pertinent to both communities, we have selected the topic of causal models with restricted cardinality of the latent variables as a special focus for this workshop.
Sponsorship for this workshop has been provided by:
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.
-
New Frontiers in Machine Learning and Quantum
This workshop will bring together a group of young trendsetters working at the frontier of machine learning and quantum information. The workshop will feature two days of talks, and ample time for participants to interact and form new collaborations in the inspiring environment of the Perimeter Institute. Topics will include machine learning, quantum field theory, quantum information, and unifying theoretical concepts.
Territorial Land AcknowledgementPerimeter 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)
In 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 long-range 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 two-day conference held at the Perimeter Institute in Waterloo, ON, centered on Rydberg-atom 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 cold-molecules. Long-range interactions open up fields of research such as the photo-association of cold atoms to form ultra-cold molecules, and the excitation of Rydberg molecules demonstrating novel kinds of molecular bonding. Strong long-range interactions in all the systems permit the investigation of the few-body and many-body regimes, including the few- to many-body 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 in-person event. However, we reserve the right to change to an online program to align with changes in regulations due to the COVID-19 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 Information 2021/2022
We will review the notion of entanglement in quantum mechanics form the point of view of information theory, and how to quantify it and distinguish it from classical correlations. We will derive Bell inequalities and discuss their importance, and how quantum information protocols can use entanglement as a resource. Then we will analyze measurement theory in quantum mechanics, the notion of generalized measurements and quantum channels and their importance in the processing and transmission of information. We will introduce the notions of quantum circuits and see some of the most famous algorithms in quantum information processing, as well as in quantum cryptography. We will also talk about the notion of distances and fidelity between states from the point of view of information theory and we will end with a little introduction to the notions of relativistic quantum information.