BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Marcin Marciniak (University of Gdansk) DTSTART:20221109T200000Z DTEND:20221109T210000Z DTSTAMP:20260420T053338Z UID:NYC-NCG/115 DESCRIPTION:Title: Positive maps on operator algebras – some problems and some solutions< /a>\nby Marcin Marciniak (University of Gdansk) as part of Noncommutative geometry in NYC\n\n\nAbstract\nIn the last decade\, the theory of positive maps on operator algebras has gained increased importance as it has been shown to have numerous applications in quantum information theory. We will present an overview of the basic topics of this theory\, in particular th e characterization of extreme positive maps or the problem of decomposabil ity. One of the intensively studied recently problems is the question of t he existence of entangled PPT states with high Schmidt number. In the lang uage of positive maps\, this is equivalent to the existence of indecomposa ble k-positive maps for large values of k.\n LOCATION:https://researchseminars.org/talk/NYC-NCG/115/ END:VEVENT END:VCALENDAR