Estimating the angular separation between two incoherent thermal sources is a challenging
task for direct imaging, especially at lengths within the diffraction limit. Moreover, detecting …

It is a central fact in quantum mechanics that non-orthogonal states cannot be distinguished
perfectly. In general, the optimal measurement for distinguishing such states is a collective …

We consider passive imaging tasks involving discrimination between known candidate
objects and investigate the best possible accuracy with which the correct object can be …

One of the big challenges in exoplanet science is to determine the atmospheric makeup of
extrasolar planets and to find biosignatures that hint at the existence of biochemical …

Spatial-mode demultiplexing (SPADE) has recently been adopted to measure the
separation in the transverse plane between two incoherent point-like sources with sub …

I point out the mathematical correspondence between an incoherent imaging model
proposed by my group in the study of quantum-inspired superresolution [M. Tsang, R. Nair …

Super resolution is one of the key issues at the crossroads of contemporary quantum optics
and metrology. Recently, it was shown that for an idealized case of two balanced sources …

The development of high-resolution, large-baseline optical interferometers would
revolutionize astronomical imaging. However, classical techniques are hindered by physical …

We perform an analysis supplementing the metrology toolbox in the time-frequency domain.
While the relevant time-frequency-based metrological protocols can be borrowed from the …

It has been shown that shared entanglement between two telescope sites can in principle be
used to localize a point source by mimicking the standard phase-scanning interferometer …