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DTSTART:20070311T020000
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DTSTAMP:20240405T194239
DTSTART;TZID=America/Detroit:20230803T143000
DTEND;TZID=America/Detroit:20230803T151500
SUMMARY:Presentation:We Are Stars
DESCRIPTION:What are we made of? Where did it all come from? Explore the secrets of our cosmic chemistry and our explosive origins. Connect life on Earth to the evolution of the Universe by following the formation of hydrogen atoms to the synthesis of carbon\, and the molecules for life.\n\nThe state-of-the-art Planetarium & Dome Theater at the U-M Museum of Natural History transports visitors beyond distant stars and back in time from the comfort of reclining seats. Tickets $8. Tickets are available on the day of the show at the Museum Store.
UID:108577-21820973@events.umich.edu
URL:https://events.umich.edu/event/108577
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Astronomy,Museum,Natural Sciences,Science
LOCATION:Museum of Natural History
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20230714T085624
DTSTART;TZID=America/Detroit:20230803T160000
DTEND;TZID=America/Detroit:20230803T170000
SUMMARY:Workshop / Seminar:Bessel operators as toy models of  renormalization group
DESCRIPTION:In Quantum Field Theory one usually needs to perform the following steps:\n1. Cut off the formal Hamiltonian with a momentum cutoff.\n2.  Add an appropriate counterterm times a running coupling constant. \n3. Determine the differential equation for the coupling constant.\n4. Go with the cutoff to infinity.\nI will show that the same steps are needed in the much simpler context of Bessel Hamiltonians\, that is\,  Schr\\"odinger operators with the inverse square potential\, if you use the momentum representation. The action of scaling on  self-adjoint realizations of Bessel operators serves as a nice illustration of  a \"renormalization group flow\".
UID:109157-21821140@events.umich.edu
URL:https://events.umich.edu/event/109157
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics,Quantum Field Theory
LOCATION:East Hall - 4088
CONTACT:
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