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DTSTAMP:20260915T025909Z
SUMMARY:LIGHT Seminar: Prof Lijian Zhang – Nanjing University
DESCRIPTION:Towards quantum-enhanced sensing and imaging with multi-paramet
 er estimation\n \nQuantum metrology for single parameter estimation has a
 chieved great success. Yet many practical applications involve multiple pa
 rameters. Therefore\, extending quantum metrology to multi-parameter estim
 ation will greatly enlarge its scope. However\, not only the quantum-enhan
 ced estimation of multiple parameters is technically more challenging comp
 ared to its single-parameter counterpart\, but the fundamental limit of it
 s precision remains elusive. In particular\, due to the incompatibility in
  quantum mechanics\, there are tradeoffs between the precisions of differe
 nt parameters. In this talk I will present our recent works on multi-param
 eter quantum metrology. For the applications\, we demonstrate how multi-pa
 rameter quantum metrology allows us to overcome Rayleigh’s criterion and
  enhance the resolution of imaging in three-dimensional space. In addition
 \, we propose and demonstrate the use of antiunitary symmetry and classica
 l correlations to eliminate the tradeoffs between different parameters and
  achieve the optimal precision simultaneously for all parameters.
URL:https://www.imperial.ac.uk/events/197656/light-seminar-prof-lijian-zhan
 g-nanjing-university/
DTSTART;TZID=Europe/London:20250905T120000
DTEND;TZID=Europe/London:20250905T130000
LOCATION:Room 630\, Blackett Building\, South Kensington Campus\, Imperial 
 College London\, London\, SW7 2AZ\, United Kingdom
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