Nima Arkani-Hamed

thumb|Nima Arkani-Hamed (2004) Nima Arkani-Hamed (نیما ارکانی حامد — born April 5, 1972) is an Iranian-American-Canadian physicist, specializing in high-energy physics and string theory. Arkani-Hamed is now on the faculty at the Institute for Advanced Study and won the 2012 Breakthrough Prize in Fundamental Physics. In 2017 he was elected a Member of the U.S. National Academy of Sciences. Quotes Two of the major questions left unanswered by the Standard Model of particle physics have to do with hierarchies of mass scales. The first is the Flavour (particle physics) flavor problem: what determines the masses of the quarks and leptons, and why do they span such a large range, e.g. why is the top quark 3 × 105 times heavier than the electron? The second is the gauge hierarchy problem: why is the weak scale seventeen orders of magnitude smaller than the Planck units Planck scale? Supersymmetry and hierarchies. Thesis (PhD) University of California, Berkeley 1997 1997PhDT........92A ... for almost as long as people have been anticipating ... thinking about Large Hadron Collider#Purpose LHC physics, the prime candidate for new physics, beyond the Standard Model, ... has been supersymmetry. SUSY and Particle Physics, Part 1 - Nima Arkani-Hamed July 10, 2017 Institute for Advanced Study, YouTube https://www.youtube.com/watch?v=ndKx5Jd3OPg&t=131s (quote at 2:11 of 1:32:40 in video; talk at the Institute for Advanced Study, July 21, 2010) There are still many open questions that need answering: Why does gravity defy the notion of space-time in short distances? Why are there humongous quantum fluctuations in shorter distances? How is a larger Universe possible? These questions relate to the hierarchy problem and fine tuning and are divided into two stages. First, one should ask: “Why is there a macroscopic Universe that is not broken in the Planck scale,” and second: “Why are there large scale structures in the large Universe and they are not broken into Planck scale black holes?” Interview with Nima Arkani Hamed by Panos Charitos, Newsletter of the EP department, CERN (30 August 2015) The stakes are higher than the past. We aren’t asking about this or that particle, but something much more deeply structural about physical reality. … By far the best way to settle this question is to lead a charge to the highest possible energies and build a 100-TeV collider. "Visions of Future Physics", an interview with Nima Arkani-Hamed by Béatrice de Géa, Quanta Magazine (22 September 2015) The hierarchy problem is the elephant in the room. ... And it originally showed up in the context of doublet–triplet splitting problem. Where in the World are SUSY & WIMPS? - Nima Arkani-Hamed 20 July 2017 YouTube https://www.youtube.com/watch?v=dKVXxcbJ4YY (12:36 of 1:40:31) This is the best few tens of billions years in the history of the universe to do cosmology. PSW 2384 The Doom of Space Time: Why It Must Dissolve Into More Fundamental Structures, Arkani-Hamed 4 December 2017 YouTube https://www.youtube.com/watch?v=qTx98PUW6lE (45:46 of 2:07:09) Whether in physics and mathematics or in the humanities, when something really finally works, it has a certain perfection to it, a feeling of inevitability, like it was so completely obvious all along, and it couldn't be any other way. #qotd #quote of the day #IASIdeas, twitter.com 12 July 2018 https://twitter.com/the_ias/status/1017439929985634304?lang=en (9:05 AM) ... like most physicists, I really enjoy talking about physics. A Conversation with Nima Arkani-Hamed: The Power of Principles, Physics Revealed (Part I) April 2, 2021 Ideas Roadshow YouTube https://www.youtube.com/watch?v=h6_iJRY6nU4 (quote at 2:47 of 57:39) ... nature has very few good ideas — it recycles them in subtle and interesting ways, over and over again — and it's our job to understand how that works. A Conversation with Nima Arkani-Hamed: The Power of Principles, Physics Revealed (Part II) April 2, 2021 Ideas Roadshow YouTube https://www.youtube.com/watch?v=OzSDZ_EPiXk (quote at 51:12 of 52:41) External links Category:Academics from the United States Category:Physicists from the United States Category:Scientists from the United States Category:1972 births Category:Living people Category:Scientists from Houston Category:University of California, Berkeley alumni Category:Harvard University faculty Category:Cornell University faculty Category:Members of the United States National Academy of Sciences