Perimeter Institute for Theoretical Physics
@perimeterinstitute
We are an independent centre for research, training, and outreach in theoretical physics in Waterloo.
"What is hard is motivating." Hear from some of Perimeter's researchers on what drives a physicist.
What does it mean to be a "creature of gravity?" Theoretical physicist Claudia de Rham explains this concept from her book The Beauty of Falling: A Life in Pursuit of Gravity.
"Humans always look for meaning." Physicist Asimina Arvanitaki reflects on our tendency to search for symbolism— even in science. Sometimes, she argues, it's simply mathematics describing nature.
"You have learnt to stay awake with a question with no answer and be completely comfortable with that, and that's a superpower." Hear from Perimeter Research Faculty Laurent Freidel and Research Chair Neil Turok on training the next generation of theoretical physicists.
How can a language learning model be tricked? Adam Brown, leader of Blueshift and core contributor of Google Gemini, uses a twist on a classic riddle to "torture" a large language model. The model solves the original, but fails on a version it hasn't seen, highlighting how these AIs are trained.
Perimeter Institute is hiring! Manager, Prospect Research and Pipeline: perimeterinstitute.ca/jobs/manager... Major Gifts Officer: perimeterinstitute.ca/jobs/major-g... Coordinator, Advancement: perimeterinstitute.ca/jobs/coordin... View all current opportunities: perimeterinstitute.ca/careers
We appreciated the opportunity to showcase Perimeter's world-leading theoretical physics research, discuss the importance of foundational science, and highlight its role in strengthening Canada's research excellence, talent pipeline, and innovation ecosystem.
The power of curiosity was central to Perimeter Institute’s offerings at this year’s SNF Nostros Conference in Athens, Greece. Read more about the event and our talk on "Universal truths, human futures": perimeterinstitute.ca/news/curious...
During his recent public lecture at Perimeter Institute, Adam Brown, leader of Blueshift and core contributor of Google Gemini, discussed "the bitter lesson": the process by which large language model AIs are improving.
We're here at SNG Nostos in Athens, Greece! Visit our booth and check out some interactive science lessons from our Outreach team.
Change one cosmic number by a factor of 10, and galaxies would never form. That's the scale of influence physicist Asimina Arvanitaki is describing when she talks about the cosmological constant. No galaxies → no stars → no us.
From meteor showers to planet parades, here’s what you can expect to see in the night sky this Summer: perimeterinstitute.ca/news/summer-...
When asked about her favourite number, physicist Asimina Arvanitaki shared a remarkable example: the Moon is roughly 400 times smaller than the Sun and about 400 times closer to Earth. This coincidence causes them to appear nearly the same size in our sky, making total solar eclipses possible.
What does life after academia look like in quantum? Our Quantum Industry Networking Event, part of our Physics of Quantum Information II conference, featured speakers who have transitioned from academia to the quantum industry, working at organizations like Quantum Valley Ideas Lab and 1QBit.
What is the difference between a regular computer and a quantum computer? In this clip, Katie Mack, Perimeter Institute’s Hawking Chair in Cosmology and Science Communication, compares the two by explaining how each would find a message hidden within a book inside a massive library.
Congratulations to all the winners, including Luis Lehner and Cliff Burgess, both of whom were named 2026 CAP fellows! We're also celebrating Mark Chiasson for winning the 2025 CAP Award for Excellence in Teaching High School/CEGEP Physics (Atlantic). Well done!
The Wall Street Journal recently named Niayesh Afshordi's Battle of the Big Bang and Katie Mack's The End of Everything (Astrophysically Speaking) among the best five books about cosmic origins and endings. Congratulations both!
It was a pleasure to welcome Hon. Caroline Mulroney and Jess Dixon to PI. Great discussions were had on Ontario’s global leadership in theoretical physics, quantum science, advanced research, and the importance of supporting the ideas and talent that help drive future innovation and discovery.
How far can we go when using AI in physics? From large language models and “next-token prediction” to quantum computing and AI-driven simulations, physicist Roger Melko discusses this rapidly evolving field where imagination may be the only limit.
Since 2002, Perimeter Institute has been recording seminars, conference talks, and public outreach events. The Perimeter Institute Recorded Seminar Archive (PIRSA) is a free, searchable archive of recorded seminars from reliable sources in physics and science. Explore PIRSA here: pirsa.org
Quantum computing is an entirely different way of processing information, designed to solve problems that classical computers cannot. @astrokatie.com paints a picture of a quantum warehouse to describe the capabilities of a quantum computer.
PENT is a community-based teacher education program in the Faculty of Education at Brandon University that allows students to combine paraprofessional work in their community schools.
Perimeter Institute was proud to sponsor the 2026 Science Meets Parliament - Ontario program. This initiative solidifies the connections between the scientific and political communities to strengthen Canada's future.
Today, AI is helping researchers simulate quantum systems, analyze massive datasets, and even model the behaviour of quantum computers. In this conversation, physicist Roger Melko explores how AI is changing the way physics is done, and what it means for the future of scientific discovery.
Dr. Niayesh Afshordi, associate faculty at PI and professor at @uwaterloo.ca, led a research team whose work suggests that the universe’s rapid early expansion could have arisen naturally from a deeper, more complete theory of quantum gravity. Learn more: perimeterinstitute.ca/news/new-the...
A new theory has reshaped the quantum perspective on the Big Bang.
Enjoy 15% off our 25th anniversary collection at the Stellar Matter Shop! Explore our curated collection of exclusive Perimeter Institute apparel, souvenirs, and collectibles, all inspired by a love of discovery: stellarmattershop.ca
In celebration of National Volunteer Week, we're proud to recognize our dedicated volunteers who regularly assist us. We are very fortunate to have this incredible group that helps share the excitement of scientific research and discovery. Thank you for all that you do!
The school is intended for graduate students of all levels, both theorists and experimentalists, preferably with some knowledge of quantum field theory. Learn more and apply by April 28: events.perimeterinstitute.ca/event/2050/o...