BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Drupal iCal API//EN
X-WR-CALNAME:Events items teaser
BEGIN:VEVENT
UID:633b8f2bbed45
DTSTART;TZID=America/Toronto:20220811T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20220811T150000
SUMMARY:Uncertainty Relations from Graph Theory
CLASS:PUBLIC
DESCRIPTION:Summary \n\nQuantum measurements are inherently probabilistic.
Further defying our\nclassical intuition\, quantum theory often forbids us
to precisely\ndetermine the outcomes of simultaneous measurements. This p
henomenon\nis captured and quantified through uncertainty relations. Altho
ugh\nstudied since the inception of quantum theory\, this problem of\ndete
rmining the possible expectation values of a collection of quantum\nmeasur
ements remains\, in general\, unsolved. In this talk\, we will go\nover s
ome basic notions of graph theory that will allow us to derive\nuncertaint
y relations valid for any set of dichotomic quantum\nobservables. We will
then specify the many cases for which these\nrelations are tight\, dependi
ng on properties of some graphs\, and\ndiscuss a conjecture for the untigh
t cases. Finally\, we will show some\ndirect applications to several probl
ems in quantum information\,\nnamely\, in constructing entropic uncertaint
y relations\, separability\ncriteria and entanglement witnesses.\n\n \n\n
\n\n \n
DTSTAMP:20221004T014059Z
END:VEVENT
END:VCALENDAR