Quantum mechanics redefines information and its fundamental properties. Researchers at Perimeter Institute work to understand the properties of quantum information and study which information processing tasks are feasible, and which are infeasible or impossible. This includes research in quantum cryptography, which studies the trade-off between information extraction and disturbance, and its applications. It also includes research in quantum error correction, which involves the study of methods for protecting information against decoherence. Another important side of the field is studying the application of quantum information techniques and insights to other areas of physics, including quantum foundations and condensed matter.
Displaying 25 - 36 of 1427
Format results
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Talk
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Semisimple Hopf algebras and fusion categories
Cesar Galindo Universidad de los Andes
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The Hopf C*-algebraic quantum double models - symmetries beyond group theory
Andreas Bauer Freie Universität Berlin
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Modular categories and the Witt group
Michael Mueger Radboud Universiteit Nijmegen
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Topological Quantum Computation
Eric Rowell Texas A&M University
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Gapped phases of matter vs. Topological field theories
Davide Gaiotto Perimeter Institute for Theoretical Physics
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An Introduction to Hopf Algebra Gauge Theory
Derek Wise University of Erlangen-Nuremberg
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Kitaev lattice models as a Hopf algebra gauge theory
Catherine Meusburger University of Erlangen-Nuremberg
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Topological defects and higher-categorical structures
Jurgen Fuchs Karlstad University
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Contextuality: Conceptual Issues, Operational Signatures, and Applications
23 talks-Collection NumberC17027Talk
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Welcome and Opening Remarks
Robert Spekkens Perimeter Institute for Theoretical Physics
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Quantum Mechanics in a New Key
Simon Kochen Princeton University
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What do we learn about quantum theory from Kochen-Specker quantum contextuality?
Adan Cabello Universidad de Sevilla
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Noncontextuality: how we should define it, why it is natural, and what to do about its failure
Robert Spekkens Perimeter Institute for Theoretical Physics
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Towards a mathematical theory of contextuality
Samson Abramsky University of Oxford
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Kochen-Specker contextuality: a hypergraph approach with operational equivalences
Ana Belen Sainz Gdańsk University of Technology
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The contextual fraction as a measure of contextuality
Shane Mansfield University of Edinburgh
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Nonlocality and contextuality as fine-tuning
Eric Cavalcanti Griffith University
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Tensor Networks for Quantum Field Theories II
18 talks-Collection NumberC17011Talk
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Discretizing the many-electron Schrodinger Equation
Steven White University of California, Irvine
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Emergence of conformal symmetry in critical spin chains
Ashley Milsted California Institute of Technology
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Bridging Perturbative Expansions with Tensor Networks
Jutho Haegeman Ghent University
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The continuous multi-scale entanglement renormalization ansatz (cMERA)
Guifre Vidal Alphabet (United States)
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Unitary Networks from the Exact Renormalization of Wavefunctionals
Rob Leigh University of Illinois Urbana-Champaign
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Tensor networks and Legendre transforms
Brian Swingle Brandeis University
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PSI 2016/2017 - Explorations in Quantum Information (Cory)
14 talks-Collection NumberC17009Talk
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 1
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 2
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 3
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 4
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 5
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 7
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 8
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 9
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information (Multiple Lecturers)
12 talks-Collection NumberC17005Talk
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PSI 2016/2017 - Quantum Information Review - Lecture 1
Richard Cleve Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 2
Richard Cleve Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 3
Debbie Leung Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 4
Debbie Leung Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 5
Daniel Gottesman University of Maryland, College Park
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PSI 2016/2017 - Quantum Information Review - Lecture 6
Daniel Gottesman University of Maryland, College Park
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PSI 2016/2017 - Quantum Information Review - Lecture 7
Kevin Resch Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 8
Kevin Resch Institute for Quantum Computing (IQC)
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It from Qubit Summer School
62 talks-Collection NumberC16003Talk
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Gravity Basics - 1
Veronika Hubeny University of California, Davis
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QI Basics - 1
Patrick Hayden Stanford University
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Entanglement - 1
Robert Spekkens Perimeter Institute for Theoretical Physics
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GR: Actions and Equations
David Kubiznak Charles University
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A new perspective on holographic entanglement
Matthew Headrick Brandeis University
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Bell’s Theorem
Adrian Kent University of Cambridge
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QI Basics - 2
John Watrous IBM (Canada)
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Quantum Information in Quantum Gravity II
31 talks-Collection NumberC15041Talk
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Gravity Dual of Quantum Information Metric
Tadashi Takayanagi Yukawa Institute for Theoretical Physics
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A new perspective on holographic entanglement
Matthew Headrick Brandeis University
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Universal holographic description of CFT entanglement entropy
Thomas Faulkner University of Illinois Urbana-Champaign
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Geometric Constructs in AdS/CFT
Veronika Hubeny University of California, Davis
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Do black holes create polyamory
Jonathan Oppenheim University College London
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Tensor Network Renormalization and the MERA
Glen Evenbly Georgia Institute of Technology
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Entanglement renormalization for quantum fields
Jutho Haegeman Ghent University
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Holographic quantum error-correcting codes: Toy models for the bulk/boundary correspondence
Fernando Pastawski California Institute of Technology
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Lecture- Quantum Measurement and Continuous Markov Processes Mini-Course
Christopher Jackson Perimeter Institute for Theoretical Physics
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TBA - Quantum Information Seminar
Pablo Rico Technical University of Munich (TUM)
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Instructor Discussion - Beautiful Papers - PHYS 773, September 12 - December 1, 2025
Pedro Vieira Perimeter Institute for Theoretical Physics
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Student Discussion - Beautiful Papers - PHYS 773, September 12 - December 1, 2025
Pedro Vieira Perimeter Institute for Theoretical Physics
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Supplement - Quantum Measurement and Continuous Markov Processes Mini-Course
Christopher Jackson Perimeter Institute for Theoretical Physics
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Hopf Algebras in Kitaev's Quantum Double Models: Mathematical Connections from Gauge Theory to Topological Quantum Computing and Categorical Quantum Mechanics
18 talks-Collection NumberC17029The Kitaev quantum double models are a family of topologically ordered spin models originally proposed to exploit the novel condensed matter phenomenology of topological phases for fault-tolerant quantum computation. Their physics is inherited from topological quantum field theories, while their underlying mathematical structure is based on a class of Hopf algebras. This structure is also seen across diverse fields of physics, and so allows connections to be made between the Kitaev models and topics as varied as quantum gauge theory and modified strong complementarity. This workshop will explore this shared mathematical structure and in so doing develop the connections between the fields of mathematical physics, quantum gravity, quantum information, condensed matter and quantum foundations.
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Contextuality: Conceptual Issues, Operational Signatures, and Applications
23 talks-Collection NumberC170272017 marks 50 years since the seminal 1967 article of Kochen and Specker proving that quantum theory fails to admit of a noncontextual model. Despite the fact that the Kochen-Specker theorem is one of the seminal results concerning the foundations of quantum theory, there has never been a large conference dedicated to the subject. The 50-year anniversary of the theorem seems an opportune time to remedy this oversight. Furthermore, in the last decade, there have been tremendous advances in the field. New life has been breathed into the subject as old conceptual issues have been re-examined from a new information-theoretic perspective. Importantly, there has been great progress in making the notion of noncontextuality robust to noise and therefore experimentally testable. Finally, there is mounting evidence that the resource that powers many quantum advantages for information processing is contextuality. In particular, it has been shown to underlie the possibility of universal quantum computation. Many groups worldwide are actively engaged in advancing our knowledge on each of these fronts and in deepening our understanding of the distinction between quantum and classical theories through the lens of contextuality. Through this conference, we aim to bring together leading researchers in the field in order to develop a broader perspective on the issues, draw connections between different approaches, foster a more cohesive community, and set objectives for future research.
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Tensor Networks for Quantum Field Theories II
18 talks-Collection NumberC17011Tensor Networks for Quantum Field Theories II -
PSI 2016/2017 - Explorations in Quantum Information (Cory)
14 talks-Collection NumberC17009PSI 2016/2017 - Explorations in Quantum Information (Cory) -
PSI 2016/2017 - Quantum Information (Multiple Lecturers)
12 talks-Collection NumberC17005PSI 2016/2017 - Quantum Information (Multiple Lecturers) -
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Quantum Information in Quantum Gravity II
31 talks-Collection NumberC15041Quantum Information in Quantum Gravity II -
Lecture- Quantum Measurement and Continuous Markov Processes Mini-Course
Christopher Jackson Perimeter Institute for Theoretical Physics
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TBA - Quantum Information Seminar
Pablo Rico Technical University of Munich (TUM)
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Instructor Discussion - Beautiful Papers - PHYS 773, September 12 - December 1, 2025
Pedro Vieira Perimeter Institute for Theoretical Physics
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Student Discussion - Beautiful Papers - PHYS 773, September 12 - December 1, 2025
Pedro Vieira Perimeter Institute for Theoretical Physics
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Supplement - Quantum Measurement and Continuous Markov Processes Mini-Course
Christopher Jackson Perimeter Institute for Theoretical Physics