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URL:/institute-for-quantum-computing/events/iqc-student
 -seminar-featuring-jose-polo-gomez
SUMMARY:IQC Student Seminar featuring Jose Polo Gomez
CLASS:PUBLIC
DESCRIPTION:Summary \n\nMEASURING QUANTUM FIELDS WITH PARTICLE DETECTORS AN
 D MACHINE LEARNING\n\nABSTRACT: The model for measurements used in quantu
 m mechanics (based\non the projection postulate) cannot be extended to mod
 el measurements\nof quantum fields\, since they are incompatible with rela
 tivity. We\nwill see that measurements performed with particle detectors (
 i.e.\,\nlocalized non-relativistic quantum systems that couple covariantly
  to\nquantum fields) are consistent with relativity\, and that they allow 
 us\nto build a consistent measurement theory for QFT. For this measurement
 \nframework to be of practical use\, we need to understand how can we\nmea
 sure specific properties of the field using a particle detector. I\nwill s
 how that there is a simple fixed measurement protocol that\nallows us to e
 xtract essentially all the information about the field\nthat the detector 
 gathers\, and that this information can then be\ninterpreted to study a sp
 ecific targeted feature using machine\nlearning techniques. Specifically\,
  I will examine two examples in\nwhich we use a neural network to extract 
 global information about the\nfield (boundary conditions and temperature) 
 performing local\nmeasurements\, taking advantage of the fact that this gl
 obal\ninformation is stored locally by the field\, albeit in a scrambled w
 ay.\n 
DTSTAMP:20250528T085601Z
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