BEGIN:VCALENDAR
VERSION:2.0
PRODID:Icfo
X-PUBLISHED-TTL:P1W
BEGIN:VEVENT
UID:6ac03c783dfc5
DTSTART:20261027T110000Z
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20261027T120000Z
LOCATION:Seminar Room
SUMMARY:ICFO | ARNAU LIRA SOLANILLA
CLASS:PUBLIC
DESCRIPTION:We introduce a systematic framework to construct nonlocal obser
 vables with extensive quantum Fisher information (QFI) density in stabiliz
 er codes. The construction maps stabilizer generators to dual Ising spins 
 whose correlators equal string order parameters\, converting hidden nonloc
 al order into a metrologically accessible observable. Applying this to mon
 itored cluster codes and the toric code\, we identify transitions in the Q
 FI scaling from an extensive regime\, where long-range string order prevai
 ls\, to an intensive one driven by competing single-site measurements.
DTSTAMP:20261002T232128Z
END:VEVENT
END:VCALENDAR