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DTSTART;TZID=Europe/Paris:20210603T130000
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DTSTAMP:20260430T115324
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LAST-MODIFIED:20221114T100703Z
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SUMMARY:Thomas Durt (Institut Fresnel\, Ecole Centrale Marseille\, France)
DESCRIPTION:Title: Applications of the Heisenberg-Weyl group to quantum state tomography with focus on dimensions 2 (quits) and 3 (qutrits) \nQuantum state tomography aims at estimating an a priori unknown quantum state with maximal efficiency.The Heisenberg-Weyl group is obtained by composing phase-space displacements in position (translations) and momentum (boosts); it is a representation of the Galilei group. Heisenberg-Weyl displacement operators are intimately associated to the Wigner operators which are quantum localisation operators in phase-space. Mutually Unbiased Bases (MUBs) and Symmetric Informationally Complete POVMs (SICs) play a central role in relation with the tomographic applications associated to the aforementioned operators.Our goal is to define these objects\, to describe the elegant symmetries and geometric structures associated to them\, and to emphasize their relevance in the framework of quantum state tomography. \nLink to the seminar here \nPeople outside Université de Namur with a Microsoft Teams account may join. For any questions\, write to riccardo.muolo@unamur.be
URL:https://www.naxys.be/event/thomas-durt-institut-fresnel-ecole-centrale-marseille/
CATEGORIES:NAXYS Seminar
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DTSTART;TZID=Europe/Paris:20210610T130000
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DTSTAMP:20260430T115324
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SUMMARY:Federico Andres Stasyszyn (IATE & OAC\, National University of Córdoba\, Argentina)
DESCRIPTION:Title: Overview on Cosmic Magnetism Issues\n\nWe summarize some open questions around cosmic magnetic fields\, from the theoretical and observational point of view. The use of Smoothed Particle Magneto Hydrodynamics (SPMHD) is getting nowadays more and more common to tackle these problems. From galaxy clusters to neutron stars\, there are multiple applications already existing in the literature. I will quickly review some of the common methods used to evolve the MF\, highlighting the successful approach of using vector potentials to describe them. Finally\, I select a few applied astrophysical examples that will shed light on these issues in the near future.\n\n\nLink to the seminar here \nPeople outside Université de Namur with a Microsoft Teams account may join. For any questions\, write to riccardo.muolo@unamur.be
URL:https://www.naxys.be/event/federico-andres-stasyszyn-iate-oac-national-university-of-cordoba-2/
CATEGORIES:NAXYS Seminar
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