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SUMMARY:Zixin Huang (MQ Center for Quantum Engineering\, Macquarie Univers
 ity\, Sydney\, Australia)
DTSTART:20210916T010000Z
DTEND:20210916T020000Z
DTSTAMP:20260423T010357Z
UID:UTSQSI/33
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/UTSQSI/33/">
 Sub-wavelength quantum imaging for astronomy and LIDAR detection</a>\nby Z
 ixin Huang (MQ Center for Quantum Engineering\, Macquarie University\, Syd
 ney\, Australia) as part of Centre for Quantum Software and Information Se
 minar Series\n\n\nAbstract\nThe resolution limit of standard imaging techn
 iques is expressed by the Rayleigh criterion\, which states that two point
 -like sources are difficult to resolve if their transverse separation is s
 maller than the Rayleigh length. While the criterion is useful in the case
  of direct detection imaging\, other measurement techniques may not be sub
 ject to this limitation. Here we consider the use of imaging to estimate t
 he distance between an arbitrary number of incoherent point sources. In th
 e regime of weak signals\, a structured measurement obtained by concatenat
 ing a linear interferometer with on-off photo-detection is immune to the R
 ayleigh curse. In this way\, we clarify the relationship between imaging a
 nd interferometry\, and establish the optimality of linear interferometry 
 for an arbitrary number of incoherent sources. We apply these techniques t
 o LIDAR detection as well as exoplanet detection\, finding optimal measure
 ments for both these tasks.\n\nHOSTED BY: Dr Peter Rohde\, Centre for Quan
 tum Software and Information\, University of Technology Sydney\n\nTo reque
 st the zoom link\, please send a message cqsiadmin@uts.edu.au using your b
 usiness/organisation/institution email address.\n
LOCATION:https://researchseminars.org/talk/UTSQSI/33/
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