Uploaded June 2026 | Updated September 2026, 3 weeks ago
Quantum gravity and quantum cryptography may seem like completely different fields, but they share a surprising connection.
In this 4-minute explainer, Alex May, Murray Gell-Mann Chair in Theoretical Physics at Perimeter Institute, introduces the AdS/CFT correspondence, a remarkable idea suggesting that gravity in a higher-dimensional spacetime can be equivalent to a quantum theory living on its lower-dimensional boundary.
One puzzle is how interactions that seem possible in the higher-dimensional gravitational picture can emerge from the lower-dimensional theory. As Alex explains, the answer comes from an unexpected place: quantum cryptography. By using protocols built on quantum entanglement, physicists can reproduce these interactions, revealing a deep connection between information, entanglement, and the nature of spacetime.
Learn more about Perimeter Institute: perimeterinstitute.ca
Subscribe for more videos exploring the frontiers of theoretical physics.
Stay in the loop: landing.perimeterinstitute.ca/newsletter-signup
Support science: perimeterinstitute.ca/info/donors
Follow Perimeter Institute:
Facebook: facebook.com/pioutreach
Instagram: instagram.com/perimeterinstitute
LinkedIn: linkedin.com/company/perimeter-institute
Bluesky: https://bsky.app/profile/perimeterinstitute.ca
TikTok: tiktok.com/@perimeterinstitute
Quantum gravity and quantum cryptography may seem like completely different fields, but they share a surprising connection.
In this 4-minute explainer, Alex May, Murray Gell-Mann Chair in Theoretical Physics at Perimeter Institute, introduces the AdS/CFT correspondence, a remarkable idea suggesting that gravity in a higher-dimensional spacetime can be equivalent to a quantum theory living on its lower-dimensional boundary.
One puzzle is how interactions that seem possible in the higher-dimensional gravitational picture can emerge from the lower-dimensional theory. As Alex explains, the answer comes from an unexpected place: quantum cryptography. By using protocols built on quantum entanglement, physicists can reproduce these interactions, revealing a deep connection between information, entanglement, and the nature of spacetime.
Learn more about Perimeter Institute: perimeterinstitute.ca
Subscribe for more videos exploring the frontiers of theoretical physics.
Stay in the loop: landing.perimeterinstitute.ca/newsletter-signup
Support science: perimeterinstitute.ca/info/donors
Follow Perimeter Institute:
Facebook: facebook.com/pioutreach
Instagram: instagram.com/perimeterinstitute
LinkedIn: linkedin.com/company/perimeter-institute
Bluesky: https://bsky.app/profile/perimeterinstitute.ca
TikTok: tiktok.com/@perimeterinstitute
