Format results
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Talk
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Quantum speedup in testing causal hypotheses
Giulio Chiribella University of Hong Kong (HKU)
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The Logic of Physical Law
Stefan Wolf Università della Svizzera italiana
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On the concepts of universality in physics and computer science
Gemma De Las Cuevas Universität Innsbruck
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A no-go theorem for observer-independent facts
Časlav Brukner Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
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Algorithmic information theory: a critical perspective
Tom Sterkenburg Ludwig-Maximilians-Universitiät München (LMU)
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Talk
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Wavefunction branches as a foundation for constructing foil theories
Jess Riedel NTT Research
PIRSA:18040082 -
Compatibility of implicit and explicit observers in quantum theory and beyond
Thomas Galley Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
PIRSA:18040084 -
From observers to physics via algorithmic information theory I
Markus Müller Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
PIRSA:18040078 -
From observers to physics via algorithmic information theory II
Markus Müller Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
PIRSA:18040080 -
Motility of the internal-external cut as a foundational principle
Robert Spekkens Perimeter Institute for Theoretical Physics
PIRSA:18040073 -
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Quantum theory cannot consistently describe the use of itself
Renato Renner ETH Zurich
PIRSA:18040085 -
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Talk
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 14
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 13
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 12
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 11
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 10
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 9
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 8
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2017/2018 - Relativistic Quantum Information - Lecture 7
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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Talk
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Operational General Relativity - Lecture 6
Lucien Hardy Perimeter Institute for Theoretical Physics
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Operational General Relativity - Lecture 5
Lucien Hardy Perimeter Institute for Theoretical Physics
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Operational General Relativity - Lecture 4
Lucien Hardy Perimeter Institute for Theoretical Physics
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Operational General Relativity - Lecture 3
Lucien Hardy Perimeter Institute for Theoretical Physics
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Operational General Relativity - Lecture 2
Lucien Hardy Perimeter Institute for Theoretical Physics
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Operational General Relativity - Lecture 1
Lucien Hardy Perimeter Institute for Theoretical Physics
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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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Talk
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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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Talk
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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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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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Talk
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 15
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 14
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 13
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 12
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 11
David Cory Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Explorations in Quantum Information - Lecture 10
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 - Explorations in Quantum Information - Lecture 8
David Cory Institute for Quantum Computing (IQC)
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Talk
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PSI 2016/2017 - Quantum Information Review - Lecture 12
Michele Mosca Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 11
Michele Mosca Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 10
Eduardo Martin-Martinez Institute for Quantum Computing (IQC)
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PSI 2016/2017 - Quantum Information Review - Lecture 9
Eduardo Martin-Martinez 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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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 6
Daniel Gottesman University of Maryland, College Park
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PSI 2016/2017 - Quantum Information Review - Lecture 5
Daniel Gottesman University of Maryland, College Park
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Talk
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Direct experimental reconstruction of the Bloch sphere
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Michael Mazurek Institute for Quantum Computing (IQC)
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Matthew Pusey University of York
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Single-photon test of Hyper-Complex Quantum Theories
Lorenzo Procopio University of Vienna
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Experimental implementation of quantum-coherent mixtures of causal relations
Robert Spekkens Perimeter Institute for Theoretical Physics
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Talk
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Does relativistic causality constrain interference phenomena?
Markus Müller Institute for Quantum Optics and Quantum Information (IQOQI) - Vienna
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Talk
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QI Basics - 1
Patrick Hayden Stanford University
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Gravity Basics - 1
Veronika Hubeny University of California, Davis
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Entanglement - 1
Robert Spekkens Perimeter Institute for Theoretical Physics
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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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GR: Actions and Equations
David Kubiznak Charles University
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QFT Basics - 1
Thomas Hartman Cornell University
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Algorithmic Information, Induction and Observers in Physics
Our universe is of astonishing simplicity: almost all physical observations can in principle be described by a few theories that have short mathematical descriptions. But there is a field of computer science which quantifies simplicity namely algorithmic information theory (AIT). In this workshop we will discuss emerging connections between AIT and physics some of which have recently shown up in fields like quantum information theory and thermodynamics. In particular AIT and physics share one goal: namely to predict future observations given previous data. In fact there exists a gold standard of prediction in AIT called Solomonoff induction which is also applied in artificial intelligence. This motivates us to look at a broader question: what is the role of induction in physics? For example can quantum states be understood as Bayesian states of belief? Can physics be understood as a computation in some sense? What is the role of the observer i.e. the agent that is supposed to perform the predictions? These and related topics will be discussed by a diverse group of researchers from different disciplines.
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Observers in Quantum and Foil Theories
Foil theories sometimes called mathematically rigorous science fiction describe ways the world could have been were it not quantum mechanical. Our understanding of quantum theory has been deepened by contrasting it with these alternatives. So far observers in foil theories have only been modeled implicitly for example via the recorded probabilities of observing events. Even when multi-agent settings are considered these agents tend to be compatible in the classical sense that they could always compare their observations. Scenarios where agents and their memories are themselves modeled as physical systems within the theory (and could in particular measure each other as in Wigner's friend experiment) have not yet been considered. In this workshop we will investigate which foil theories allow for the existence of explicit observers and whether they allow for paradoxes in multi-agent settings such as those found in quantum theory. We will also investigate which interpretations of quantum theory would equally well interpret the foil theories and which interpretations are truly quantum. We will gain a deeper understanding of how this can happen by discussing appropriate definitions observers in these theories and seeing how such observers learn about their environment.
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PSI 2017/2018 - Relativistic Quantum Information (Martin-Martinez)
PSI 2017/2018 - Relativistic Quantum Information (Martin-Martinez) -
Lecture Series on Operational General Relativity
Lecture Series on Operational General Relativity -
Hopf Algebras in Kitaev's Quantum Double Models: Mathematical Connections from Gauge Theory to Topological Quantum Computing and Categorical Quantum Mechanics
The 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
2017 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
Tensor Networks for Quantum Field Theories II -
PSI 2016/2017 - Explorations in Quantum Information (Cory)
PSI 2016/2017 - Explorations in Quantum Information (Cory) -
PSI 2016/2017 - Quantum Information (Multiple Lecturers)
PSI 2016/2017 - Quantum Information (Multiple Lecturers) -
Experimental Quantum Foundations
Experimental Quantum Foundations -
Formulating and Finding Higher-Order Interference
Formulating and Finding Higher-Order Interference
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