Mankei Tsang, Physical Review A (Editors’ Suggestion) 99, 012305 (2019) [PDF]

• Covered by APS Physics Buzz.
• See Tsang, Physical Review Research 1, 033006 (2019) for a proof that spatial-mode demultiplexing (SPADE) can get close to the quantum limit.

Mankei Tsang, Ranjith Nair, and Xiao-Ming Lu, Physical Review X 6, 031033 (2016) [Open Access]

“Tsang and his colleagues have provided a new perspective on the utility of quantum metrology, and they have reminded us that even in observational astronomy—one of the oldest branches of science—there are (sometimes) still new things to be learned, at the most basic level.”

—Gabriel Durkin, Viewpoint in APS Physics

“Seth Lloyd of the Massachusetts Institute of Technology in the US is impressed. ‘This is awesome work and I am amazed that it hasn’t been done before,’ he says. ‘Perhaps everyone thought it was too good to be true.’”

—quoted by Edwin Cartlidge, IoP Physics World

“Through this work we can learn more about our surroundings, both by looking outward and by looking inward. The technique Tsang’s team developed could also be applied to improving how well a microscope resolves fluorescent samples like biological molecules, drugs, or toxins. As both scales of this work moves forward, it reminds us that light is not only a tool for exploration, but also a rich source of information to explore.”

—Kendra Redmond, APS Physics Buzz

See also

• Chosen as #2 of top physics breakthroughs of 2016 by the Foundational Questions Institute (FQXi) podcast
• A report on Phys.org
• Our recent superresolution papers and other references

Other sources mentioning our work:

• OSA Optics & Photonics News
• AAAS EurAlert!

Mankei Tsang and Carlton M. Caves, Physical Review X 2, 031016 (2012) [Open Access]

• See the journal website for a popular summary.
• The paper was covered by an Ars Technica article.
• See Møller et al., Nature 547, 191 (2017) for a recent experiment.

Mankei Tsang, Physical Review Letters 102, 250403 (2009) [PDF]; Physical Review A 80, 033840 (2009) [PDF]; Physical Review A 81, 013824 (2010) [PDF]

Experiments

• Wheatley et al., Physical Review Letters (Editors’ Suggestion) 104, 093601 (2010).
• Yonezawa et al., Science 337, 1514 (2012).

Mankei Tsang, Physical Review Letters (Editors’ Suggestion) 108, 170502 (2012) [PDF]

• Supplementary Material
• Synopsis in Physics

Mankei Tsang, Physical Review A 81, 063837 (2010) [PDF]; Physical Review A 84, 043845 (2011) [PDF]

• Experimental progress was reported by
  1. Rueda et al., Optica 3, 597 (2016),
  2. Fan et al., Science Advances 4, eaar4994 (2018).
• A figure in Part II was chosen as a “Kaleidoscope Image” on the Physical Review A website.

Mankei Tsang, Physical Review Letters (Editors’ Suggestion) 102, 253601 (2009) [PDF]

• P. M. Anisimov and J. P. Dowling, “Viewpoint: Super resolution with superposition,” Physics 2, 52 (2009).
• Experimental demonstrations:
  1. Shin et al., Physical Review Letters 107, 083603 (2011).
  2. Rozema et al., Physical Review Letters 112, 223602 (2014).
  3. Unternährer et al., Optica 5, 1150 (2018).

Mankei Tsang, Demetri Psaltis, and Fiorenzo G. Omenetto, Optics Letters 28, 1873 (2003) [PDF]

• The theory was rediscovered in the context of optical communications by X. Li et al., Opt. Express 16, 880 (2008).
• For femtosecond pulses, an experimental demonstration was reported by Pawłowska et al., Opt. Lett. 37, 2709 (2012).