Identifier,"Start Date / Time","End Date / Time",Title,Subtitle,Type,Description,Permalink,"Building Name",Room,"Location Name",Cost,Tags,Sponsors
72542-18015954,"2020-02-19 12:00:00","2020-02-19 13:00:00","HET Brown Bag | SYK, Chaos, and higher-spin","Cheng Peng (UC Davis)","Lecture / Discussion","I will discuss two related topics in the talk. In the first part, I will discuss a 2-dimensional SYK-like model whose moduli space consists of both a chaotic regime and corners with emergent higher-spin symmetry. This model provides a manifest realization of the widely believed connection between SYK-like models and higher-spin theories. In the second part, I will discuss a general class of coupled quantum systems that share a somewhat surprising property: their ground states approximate the thermofield double state to very good accuracy. This provides a practical way to prepare the thermofield double state.",https://events.umich.edu/event/72542,"Randall Laboratory",3481,"Randall Laboratory",,"Brown Bag Seminar
Physics
Science
Winter 2020","Leinweber Center for Theoretical Physics Seminars"
72414-18000399,"2020-02-21 15:00:00","2020-02-21 16:00:00","HET Seminar | Conical singularities of G2-manifolds in mathematics and physics","Spiro Karigiannis (UWaterloo)","Lecture / Discussion","I will first give an introduction to and brief history of G2 geometry, to compare and contrast it to Calabi-Yau geometry. G2 manifolds are important in physics because they admit parallel spinors. It is of interest to construct compact examples with singularities. I will then give a survey of some of my work that is related to conical singularities of G2 manifolds, including: desingularization, deformation theory, and a possible strategy to construct such G2 conifolds. This will include some (separate) joint works with Dominic Joyce and Jason Lotay. No previous exposure to G2 geometry will be assumed, but the focus will be more mathematical than physical. I am hoping that some of you can teach me more physics during the day.",https://events.umich.edu/event/72414,"West Hall",340,"West Hall",,"High Energy Theory Seminar
Mathematics
Physics
Science
Winter 2020","Leinweber Center for Theoretical Physics Seminars"
72746-18070550,"2020-02-26 12:00:00","2020-02-26 13:00:00","HET Brown Bag | Binary Black Holes and Scattering Amplitudes","Mikhail Solon (Caltech)","Lecture / Discussion","We develop a systematic framework for describing binary dynamics using modern tools from quantum field theory. Our approach combines onshell methods such as generalized unitarity and the double-copy construction with effective field theory methods for integration and matching. As a first application, we derive a new result in general relativity: the third post-Minkowskian correction to the conservative two-body Hamiltonian for spinless black holes. Prospects and challenges for applying quantum field theory for the gravitational wave physics program are discussed.",https://events.umich.edu/event/72746,"Randall Laboratory",3481,"Randall Laboratory",,"Brown Bag Seminar
Physics
Science
Winter 2020","Leinweber Center for Theoretical Physics Seminars"
72269-17966043,"2020-03-16 17:30:00","2020-03-16 18:30:00","The 3rd LCTP Public Lecture | Graphic Talk About the Universe","Cliff Johnson (USC)","Lecture / Discussion","There should be other ways to get readers engaged with science besides just putting words on a page, representing the voice of the author. What if the reader could get multiple voices, and different points of view? What if they could see and relate to a variety of people engaged with the ideas? Maybe see glimpses of the language and tools that the scientists actually use when they develop scientific ideas and discover truths about our universe? What if these things could all take place on the page at the same time? Is there a kind of book that can do all that?
Yes! Graphic novels, sequential art, comics - whatever term you prefer to use - are a unique narrative form that can communicate serious, multifaceted scientific ideas to sophisticated readers. In fact, they are perfectly suited to physics! Johnson demonstrates this in his book “The Dialogues: Conversations about the nature of the Universe” (MIT Press), listed by Science Friday as one of the year’s best books in 2017 and in 2018. In this talk he discusses some of the scientific and artistic ideas contained in it, and how he came to write and draw the book.",https://events.umich.edu/event/72269,"Rackham Graduate School (Horace H.)","Amphitheatre, 4th Floor","Rackham Graduate School (Horace H.)",,"Lctp Public Lecture
physics
Science","Leinweber Center for Theoretical Physics Seminars"