Format results
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Towards a new ontological framework for quantum theory
Lorenzo Catani - Chapman University
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Spin Entanglement Witness for Quantum Gravity
Anupam Mazumdar - University of Groningen
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Witnessing nonclassicality with measurement dependence.
George Moreno - Universidade Federal do Rio Grande do Norte
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Anyonic information theory and quantum foundations
Nicetu Tibau Vidal - University of Oxford
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Towards the identification of Quantum Theory: Operational Approach
Sutapa Saha - Indian Statistical Institute
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State retrieval beyond Bayes' retrodiction
Jacopo Surace - Aix-Marseille University
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Infinite Dimensional Optimisation Problems in Quantum Information — An operator algebra approach to the NPA Hierarchy
Julius Zeiss - Universität zu Köln
The theory of polynomial optimisation considers a polynomial objective function subject to countable many polynomial constraints. In a seminal contribution Navascués, Pironio and Acín (NPA) generalised a previous result from Lassere, allowing for its application in quantum information theory by… -
TBA
Sandu Popescu - University of Bristol
Abstract: TBD Zoom Link: https://pitp.zoom.us/j/95212522185?pwd=eWx4R3o3cmZISmtPY0xwMmdxc2EzZz09 -
Witnessing non-classicality in a causal structure with three observable variables - Pedro Nobrega Lauand, Physics Institute at University of Campinas
Bell's theorem proves that quantum theory is inconsistent with local physical models and, from the perspective of causal inference, it can be seen as the impossibility of providing a classical causal explanation to quantum correlations. Bell's theorem has propelled research in the foundations of… -
Towards a new ontological framework for quantum theory
Lorenzo Catani - Chapman University
No-go theorems (Bell, Kochen-Specker, …) formally show the departure of quantum theory from classical theory. These are formulated in the framework of ontological models and, if one accepts such framework, entail that quantum theory involves problematic (“fine-tuned”) properties. I will argue that… -
Spin Entanglement Witness for Quantum Gravity
Anupam Mazumdar - University of Groningen
Understanding gravity in the framework of quantum mechanics is one of the great challenges in modern physics. Along this line, a prime question is to find whether gravity is a quantum entity subject to the rules of quantum mechanics. It is fair to say that there are no feasible ideas yet to test the… -
Witnessing nonclassicality with measurement dependence.
George Moreno - Universidade Federal do Rio Grande do Norte
Nonclassicality, as witnessed by the incapacity of Classical Causal Theory (CCT) of explaining a system's behavior given its causal structure, come to be one of the hottest topics in Quantum Foundations over the last decades, a movement that was motivated both by its vast range of practical… -
Anyonic information theory and quantum foundations
Nicetu Tibau Vidal - University of Oxford
In this talk, I present the latest works on anyonic information theory and how it is linked to aspects of quantum foundations. First, the theory of 2+1 D non-abelian anyons will be introduced. The newly discovered notion of anyonic creation operators will be presented, as well as their use as local… -
Towards the identification of Quantum Theory: Operational Approach
Sutapa Saha - Indian Statistical Institute
In spite of its immense importance in the present-day information technology, the foundational aspects of quantum theory (QT) remain still elusive. In particular, there is no such set of physically motivated axioms which can answer why Hilbert space formalism is the only natural choice to describe… -
State retrieval beyond Bayes' retrodiction
Jacopo Surace - Aix-Marseille University
In the context of irreversible dynamics, the meaning of the reverse of a physical evolution can be quite ambiguous. It is a standard choice to define the reverse process using Bayes' theorem, but, in general, this is not optimal with respect to the relative entropy of recovery. In this work we… -
Physical interpretation of non-normalizable quantum states and a new notion of equilibrium in pilot-wave theory
Indrajit Sen - Chapman University
Non-normalizable quantum states are usually discarded as mathematical artefacts in quantum mechanics. However, such states naturally occur in quantum gravity as solutions to physical constraints. This suggests reconsidering the interpretation of such states. Some of the existing approaches to this… -
Bipartite entanglement and the arrow of time
Quantum correlations in general and quantum entanglement in particular embody both our continued struggle towards a foundational understanding of quantum theory as well as the latter’s advantage over classical physics in various information processing tasks. Consequently, the problems of classifying… -
Analysis of the superdeterministic Invariant-set theory in a hidden-variable setting
Indrajit Sen - Chapman University
Superdeterminism has received a recent surge of attention in the foundations community. A particular superdeterministic proposal, named Invariant-set theory, appears to bring ideas from several diverse fields (eg. number theory, chaos theory etc.) to quantum foundations and provides a novel…