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    I am an astronomer, cosmologist, and data scientist. I am currently a NSF funded Assistant Research Scientist at the UC San Diego Center for Astrophysics & Space Sciences (CASS profile) and a Research Affiliate in the MIT Program in Science, Technology and Society (STS). I work on several theoretical and observational cosmology projects to devise and implement fun experiments that leverage cosmology to help test fundamental physics. These include a series of experiments with colleagues to test quantum theory with astronomical observations as well as Infrared and Optical observations of Type Ia Supernovae with ground and space based telescopes, which can be used to measure the expansion history of the universe, cosmic acceleration, and dark energy. Before UCSD, I was an NSF Postdoctoral Fellow at MIT, a NSF Funded Research Associate at MIT, and a Visiting Research Scientist at the MIT Center for Theoretical Physics. I completed my PhD in Astronomy & Astrophysics from the Harvard University Department of Astronomy and I received my BA in Physics & Astrophysics from UC Berkeley. I am very interested in projects at the intersection between observational astronomy, astrophysics, data analysis, and the philosophy of science, especially the philosophy of cosmology. I am excited to explore a range of fascinating scientific questions through research, science writing, art, animation, public outreach, and working with the science media. For more, see my Bio, Resume, and CV.
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Media Coverage

You Tube video from Wochit News based on this Science News article. The end of the video is incorrect. Our experiment used photons from Milky Way stars to choose measurement settings in a Bell test with entangled particles generated here on Earth. We are actually trying to ensure that the stellar photons are as un-entangled as possible! Also, the stars are not separated by 600 light years from each other. In fact, the nearest of the two stars in each run of our experiment was about 600 light years away from Earth.
Our proposed experiment to use cosmic sources like quasars to set the detectors in a Bell inequality test is mentioned (directly or obliquely) in the context of an amazing experiment by researchers at Delft University of Technology, which closed two of the three major loopholes simultaneously for the first time.
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”)
Our cosmic Bell project in the context of the Big Bell test, a fun, global experiment (run, in part, by our collaborators in Vienna) that used human volunteers to make ``random'' measurement choices in a large test of Bell's inequality.

An excellent introductory video series about quantum mechanics and free will. Links to some articles on our cosmic Bell proposal.


“Using GRBs For Cosmology” by Andrew Friedman,Sky & Telescope, Vol. 112, No. 8, p35, 2006 [PDF] (with Robert Naeye article below)
“Gamma Ray Bursts: New Cosmic Rulers?” by Robert Irion atScience, Vol. 306, Issue 5694, pp. 215, Oct 8 2004 [PDF]





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, 2/2017

University of California, San Diego, 9500 Gilman Drive
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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