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SUMMARY:Quantum enhanced sensing of a spatially extended field
DTSTART:20251106T150000Z
DTEND:20251106T163000Z
DTSTAMP:20260309T093700Z
UID:indico-event-1607364@indico.cern.ch
DESCRIPTION:Speakers: Alice Sinatra\n\nNonlocal correlations that exist in
  quantum physics can be used in a sensor network to improve the sensitivit
 y of the measurement of an extended field or some of its spatial features.
  Taking an atomic ensemble in a spin-squeezed state distributed in differe
 nt spatial modes (the sensors) as a resource\, I will show what kind of ga
 in can be obtained in two different cases. First\, assuming that local man
 ipulations can be made on the sensors but all measurements are collective 
 [1]\, and second\, including some experimental results [2]\, assuming that
  both local manipulations and local measurements are possible on each sens
 or. Generalising to the case of a large number of sensors\, we show applic
 ations to imaging and compressed sensing.\nReferences : [1] "Quantum-enhan
 ced multiparameter estimation and compressed sensing of a field"\, Y. Baam
 ara\, M. Gessner\, A. Sinatra\, SciPost Physics 14\, 050 (2023) https://s
 cipost.org/SciPostPhys.14.3.050\n[2] "Multiparameter estimation with an ar
 ray of entangled atomic sensors"\, Yifan Li\, Lex Joosten\, Youcef Baamara
 \, Paolo Colciaghi\, Alice Sinatra\, Philipp Treutlein\, Tilman Zibold\, 
 https://arxiv.org/abs/2504.08677.\n\nhttps://indico.cern.ch/event/1607364/
URL:https://indico.cern.ch/event/1607364/
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