21–26 Jun 2026
U. Ottawa - Learning Crossroads (CRX) Building
America/Toronto timezone
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Logical Bell Inequalities, Magic States, and Lambda Polytopes

23 Jun 2026, 10:45
15m
U. Ottawa - Learning Crossroads (CRX) Building

U. Ottawa - Learning Crossroads (CRX) Building

100 Louis-Pasteur Private, Ottawa, ON K1N 9N3
Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Division for Quantum Information / Division de l'information quantique (DQI / DIQ) (DQI) T1-9 | (DIQ)

Speaker

Sanchit Srivastava (Institute for Quantum Computing, University of Waterloo)

Description

We investigate the role of logical Bell inequalities in identifying quantum states useful for magic state distillation. Our approach provides an alternative route to characterizing contextuality as a resource, entirely within the logical framework. In particular, we derive logical Bell inequalities that delineate the faces of the simulable polytope of a single qudit \textemdash the set of states non-negatively represented by the discrete Wigner function. This formulation highlights how logical Bell inequalities can serve as a tool for pinpointing non-stabilizer states relevant to quantum computational advantage, and it opens a pathway toward relating contextuality-based characterizations of magic to lambda-polytopes.

Keyword-1 Quantum Foundations
Keyword-2 Contextuality
Keyword-3 Magic States

Author

Sanchit Srivastava (Institute for Quantum Computing, University of Waterloo)

Co-authors

Mr Amolak Kalra (Institute for Quantum Computing, University of Waterloo) Prof. Cihan Okay (Department of Mathematics, Bilkent University) Dr Selman Ipek (Department of Mathematics Bilkent University) Shohini Ghose (Wilfrid Laurier University)

Presentation materials

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