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    I am an astronomer, cosmologist, and data scientist, currently a NSF funded Assistant Research Scientist at the UC San Diego Center for Astrophysics & Space Sciences (CASS) and a Research Affiliate in the MIT STS Program. I work on several theoretical and observational projects to devise and implement fun experiments that leverage cosmology to test fundamental physics, including novel tests of quantum theory with astronomical observations as well as Infrared and Optical studies of Supernovae with ground and space based telescopes to measure the expansion history of the universe, cosmic acceleration, and dark energy. I enjoy exploring fascinating scientific questions at the intersection between observational astronomy, astrophysics, data analysis, and the philosophy of science through research, science writing, art, animation, public outreach, and science media engagement. For more, see my Bio, Resume, and CV.
MIT Vera
Tufts/MIT Cosmo

Cosmic Bell
David Kaiser
Jason Gallicchio
Alan Guth
Brian Keating
Anton Zeilinger
IQOQI, Vienna

Harvard CfA
Harvard Astro
Harvard PIN
Harvard Library
Andy's Cheat Sheets
NSF Essays
Shu Exam
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Testing Quantum Mechanics With Astronomical Observations
   My colleagues and I at MIT, Harvey Mudd, NASA/JPL/Caltech, UCSD, the Max Planck Institute of Quantum Optics, and the Institute for Quantum Optics and Quantum Information in Vienna are currently developing and implementing a series of experiments that test quantum mechanics and entanglement with the help of astronomical observations. Specifically, we are aiming to close one of the last remaining loopholes in tests of Bell's inequality that could allow a so-called local hidden variable theory to mimic the predictions of quantum mechanics. To do so, we would combine a standard Earth-based experiment (a so-called Bell test) with entangled photons, but use real-time astronomical observations of distant stars in our own galaxy, distant galaxies like quasars, or patches of the cosmic microwave background, to essentially let the universe decide how to set up our experiment instead of using standard quantum random number generators, as in state of the art experiments, such as this one. For popular level discussions of our project, see here and here. Or see these technical level papers on our proposed Cosmic Bell experiment and the required theoretical cosmology background needed to chose pairs of cosmic sources whose past light cones have not intersected in the past 13.8 billion years, since the end of any early-universe inflation. Finally, see here for a paper on our first successful experiment using Milky Way stars to choose Bell test detector settings.
Physical Review Letters, Vol. 118, Issue 6, id. 060401, February 7 2017 (arXiv:1611.06985 | PDF) (DOI) (Supplemental Material)
Physical Review Letters, Vol. 112, Issue 11, id. 110405, March 18 2014 (arXiv:1310.3288) (DOI)
Physical Review D, Vol. 88, Issue 4, id. 044038, August 21 2013 (arXiv:1305.3943) (DOI)

American Astronomical Society, 228th Meeting, San Diego, California, (June 16 2016)
American Astronomical Society, 224th Meeting, Boston, Massachusetts, (June 4 2014)

2nd Annual MIT Postdocs Share Their Science Poster Session, Massachussetts Institute of Technology, Cambridge, MA (May 12 2014)

More Media Coverage
Research Grants
Co-PI, with PI David I. Kaiser, Co-PI Alan H. Guth, Jason Gallicchio, and Brian Keating (in collaboration with Anton Zeilinger)

Public Talks
Summer Science Program Alumni Dinner, MIT Media Lab, Cambridge, MA (Nov 14 2015)

Popular Articles
by Andrew Friedman, Astronomy Magazine, Vol. 43, Issue 5, May 2015, pg. 44-45 [PDF]
by Andrew Friedman, Astronomy Magazine, Vol. 42, Issue 10, October 2014, pg. 28-33 [PDF or PDF] (Also see: “Web Extra: Another Cosmic Thought Experiment”)

Selected Media Coverage

See All Media Coverage Here...
University of California, San Diego UCSD Center for Astrophysics & Space Sciences Massachusetts Institute of Technology MIT Center for Theoretical Physics Institute for Quantum Optics and Quantum Information, Vienna Harvard University Astronomy Harvard-Smithsonian Center for Astrophysics UC Berkeley Astronomy National Science Foundation National Aernautics & Space Administration
Last Updated: Andrew Samuel Friedman, 6/2017

University of California, San Diego, 9500 Gilman Drive
CASS, M/C 0424, SERF Bldg. 334, La Jolla, CA 92093-0424, USA (858) 534-5416

This material is based upon work supported by the National Science Foundation under NSF Award #1056580 (2012-2014) through an NSF Science, Technology, and Society Postdoctoral Fellowship at MIT and the NSF INSPIRE program via NSF Award #1541160 (2015-2018).

Original animations are shared under a
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 US License