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    I am an astronomer, cosmologist, and data scientist. I am currently a NSF funded Research Associate in the MIT Program in Science, Technology and Society (STS) and a Visiting Research Scientist at the MIT Center for Theoretical Physics. I work on several theoretical and observational cosmology projects, including devising fun experiments that leverage cosmology to help test fundamental physics and observing exploding stars with ground and space based telescopes. Before MIT, I completed a PhD in Astronomy & Astrophysics from the Harvard University Department of Astronomy and I received my BA in Physics & Astrophysics from UC Berkeley. 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 info, see my Bio, Resume, and CV.
MIT Astronomy
MIT Vera
Tufts/MIT Cosmo

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

Harvard CfA
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Harvard Library
Andy's Cheat Sheets
NSF Essays
Shu Exam
Grad Students/Advisors
Student/Faculty Photos

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]

Massachusetts Institute of Technology MIT Center for Theoretical Physics Institute for Quantum Optics and Quantum Information, Vienna University of California, San Diego UCSD Center for Astrophysics & Space Sciences 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

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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