2026 CAP Congress / Congrès de l'ACP 2026

Session

(DQI) M1-2 | (DIQ)

M1-2

22 Jun 2026, 10:15

U. Ottawa - Learning Crossroads (CRX) Building

982. On the power of multipartite entanglement for pseudotelepathy

Prof. Xavier Coiteux-Roy (University of Calgary)

22/06/2026, 10:15

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Invited Speaker / Conférencier(ère) invité(e)

As early as 1935, Schrödinger recognized entanglement as “not one, but the characteristic trait of quantum mechanics, the one that enforces its entire departure from classical lines of thought”. Indeed, most remarkable phenomena in quantum information science, such as quantum computing and quantum teleportation, spring from clever uses of entanglement. Among them, pseudotelepathy enables two...

1028. From Fast‑Scrambling Black Holes to Cosmological Complexity: Quantum Information Tools for Gravity

Prof. Saurya Das (University of Lethbridge)

22/06/2026, 10:45

Invited Speaker / Conférencier(ère) invité(e)

Quantum information provides new ways of thinking about gravity. I’ll first describe our work on black holes viewed as fast “scramblers” of information: if a black hole mixes its internal information very quickly, then someone falling in would encounter a high-energy barrier (a “firewall”) almost immediately, rather than passing smoothly through the horizon as Einstein’s theory suggests, and...

1029. Additivity and Nonadditivity of Quantum Channel Capacities

Prof. Graeme Smith (University of Waterloo)

22/06/2026, 11:15

Invited Speaker / Conférencier(ère) invité(e)

A central goal of quantum information theory is to determine the capacities of a quantum channel for sending different sorts of information. I’ll highlight the new and fundamentally quantum aspects that arise in quantum information theory compared to the classical theory. These include the central role of entanglement, nonadditivity, and synergies between resources. I will also discuss some...

643. Security of quantum position-verification

Alex May (Perimeter Institute for Theoretical Physics)

22/06/2026, 11:45

Division for Quantum Information / Division de l'information quantique (DQI / DIQ)

Oral (Non-Student) / Orale (non-étudiant(e))

In this talk I will review recent progress on understanding the security of quantum position-verification, a proposal to use quantum communication to verify the location in space of a party remotely. In particular I will review the $f$-routing proposal and lower bounds on the entanglement or complexity cost to cheat in this scheme. Based on https://arxiv.org/abs/2402.18648,...