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SUMMARY:Magdalena Zych (Stockholm University)
DTSTART:20230620T070000Z
DTEND:20230620T090000Z
DTSTAMP:20260419T092951Z
UID:3cqfs/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/3cqfs/7/">Re
 lativity of quantum superpositions in the context of superpositions of gra
 vitational sources</a>\nby Magdalena Zych (Stockholm University) as part o
 f Tricontinental Quantum Fundamentals Seminar\n\n\nAbstract\nIt is anticip
 ated that in a theory of quantum gravity\, there exist quantum superpositi
 ons of semiclassical states of spacetime geometry. It is often discussed h
 ow such states could arise from a source mass in a spatial superposition. 
 In this talk I will discuss such spatial superposition scenarios from the 
 perspective of relativity of the notion of location\, and thus of superpos
 ition itself. This perspective allows to show that for states in which the
  superposed amplitudes differ by a coordinate transformation\, it is alway
 s possible to re-express the scenario in terms of dynamics on a fixed geom
 etry albeit with adapted preparations and measurements on the involved deg
 rees of freedom. The results unveil an ambiguity in the interpretation of 
 such scenarios as genuinely quantum-gravitational\, and motivate further r
 esearch into loopholes and assumption behind such scenarios.\n\nTalk not r
 ecorded\n
LOCATION:https://researchseminars.org/talk/3cqfs/7/
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