BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Kaumudibikash Goswami (University of Queensland) DTSTART:20201013T000000Z DTEND:20201013T010000Z DTSTAMP:20260423T010357Z UID:UTSQSI/20 DESCRIPTION:Title: Indefinite causal order\nby Kaumudibikash Goswami (University of Queen sland) as part of Centre for Quantum Software and Information Seminar Seri es\n\n\nAbstract\nIn our daily life\, we experience a fixed order of event s. The notion of such a fixed causal order breaks down when we enter the q uantum regime. In the quantum realm\, it is possible to have situations wh ere no definite causal structure can be attributed. Apart from the foundat ional aspect\, such exotic causal structures are useful to achieve augment ed communication.\n\nIn the first two parts of this talk\, I will present our experimental realisation of an indefinitely causal ordered scenario an d demonstrate how one can achieve a communication advantage out of it. In the last part\, I will discuss how one can attribute several information-t heoretic aspects to an arbitrary causal structure. In that part\, I will d efine a notion of classical capacity for an indefinite causal order\, and present several information-theoretic bounds obtained from our study.\n LOCATION:https://researchseminars.org/talk/UTSQSI/20/ END:VEVENT END:VCALENDAR