the Perimeter spring/summer 2018 Remembering Stephen Hawking The riddle of the quantum Sphinx AI solves quantum challenges Taming the Langlands program Editor Natasha Waxman
[email protected] Managing Editor Tenille Bonoguore Contributing Authors Tenille Bonoguore Erin Bow Mike Brown Dan Falk Colin Hunter Stephanie Keating Robert Spekkens Neil Turok Copy Editors Tenille Bonoguore Mike Brown Colin Hunter Stephanie Keating Sonya Walton Natasha Waxman Graphic Design Gabriela Secara Cover Illustration Center for Astrophysics / M. Weiss Photo Credits Adobe Stock Mitch Altman Michael Bennett Mike Brown Stephanie Keating Jens Langen John Matlock NASA Jennifer Roberts Photography Gabriela Secara UCSB/Sonia Fernandez Inside the Perimeter is published by Perimeter Institute for Theoretical Physics. www.perimeterinstitute.ca To subscribe, email us at
[email protected]. 31 Caroline Street North, Waterloo, Ontario, Canada p: 519.569.7600 I f: 519.569.7611 02 IN THIS ISSUE 04/ Goodbye, dear Stephen, Neil Turok 06/ Remembering Stephen Hawking 08/ Three new appointments bolster mathematics and cosmology, Tenille Bonoguore 10/ Emmy Noether Fellowships expand, Tenille Bonoguore 12/ California connections, Stephanie Keating 13/ The riddle of the quantum Sphinx, Robert Spekkens 16/ Artificial intelligence teaches itself to solve gnarly quantum challenges, Tenille Bonoguore 18/ Taming the Langlands program, Dan Falk 21/ Slice of PI: My favourite equation 25/ People of PI: Ghanaian trailblazer Prince Osei, Mike Brown 27/ G7 Sherpas hold planning sessions at Perimeter, Colin Hunter 28/ Thanks to our supporters 30/ Remodelling science, Tenille Bonoguore and Stephanie Keating 33/ WGSI: How to build a better future 33/ Upcoming conferences 34/ “Aim high, work hard, and bring your swagger,” Tenille Bonoguore 36/ What’s physics good for? The incredible MRI, Erin Bow 39/ Particles 42/ PI kids are asking: Rainbows, Stephanie Keating 03 NEIL'S NOTES GOODBYE, DEAR STEPHEN I was an undergraduate physicist in technicalities.