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DTSTART:20070311T020000
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BEGIN:VEVENT
DTSTAMP:20260810T205616
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Lecture / Discussion:Pseudo-magnetism in a strained discrete honeycomb lattice
DESCRIPTION:Abstract: Slowly-varying nonuniform strain in honeycomb media can generate an effective pseudo-magnetic field\, even though the underlying medium is non-magnetic. This phenomenon was first discovered in graphene and later in photonic crystals\, and other physical settings. In this talk\, I will start from a discrete nearest-neighbor tight-binding model for a nonuniformly strained honeycomb medium. I will then show how this model leads to a continuum magnetic Dirac Hamiltonian that describes wave packets concentrated near a Dirac point of the undeformed structure. I will focus on unidirectional deformations with bounded gradients that preserve translation invariance along the armchair direction. In this setting\, we prove the existence of eigenmodes that behave like plane waves along the armchair direction and are strongly localized in the transverse direction\, together with quantitative correction estimates. These results apply to deformations that produce an approximately constant pseudo-magnetic field perpendicular to the plane. They also lead to nearly flat bands and\, as a consequence\, a very high density of states. These analytical results are also supported by numerical simulations of the corresponding deformations. This is joint work with Michael I. Weinstein.\n\nContact:  Ian Tobasco
UID:148873-21905035@events.umich.edu
URL:https://events.umich.edu/event/148873
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 1084
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260812T103351
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Social / Informal Gathering:Sustainability Coffee Chats: Free coffee and good conversation!
DESCRIPTION:The Student Sustainability Coalition will be hosting our coffee chats throughout the semester and we want you to join us!  Passionate about sustainability?--water conservation\, AI\, carbon neutrality\, transportation\, ANYTHING!--come chat with us\, share your passion(s) and interests\, all while helping contribute to a more sustainable University of Michigan! Not to mention: WE WILL BUY YOUR DRINK!\n\nFind us at: \nMaizes Cafe every Friday from 3-4p
UID:138091-21908258@events.umich.edu
URL:https://events.umich.edu/event/138091
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Activism,Climate Change,Discussion,Food,food and the environment,Free,Free Food,Graduate and Professional Students,In Person,Social,Social Impact,Student Org,Sustainability,Talk,Undergraduate Students
LOCATION:Michigan League - Maizie's Cafe
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260904T002057
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T170000
SUMMARY:Conference / Symposium:Transdisciplinary Fellows (2026-2027) (Housing)
DESCRIPTION:
UID:149272-21911112@events.umich.edu
URL:https://events.umich.edu/event/149272
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Sessions
LOCATION:Faculty Dining Room
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260903T145225
DTSTART;TZID=America/Detroit:20260911T150000
DTEND;TZID=America/Detroit:20260911T160000
SUMMARY:Workshop / Seminar:Type C multiline queues and the open-boundary TASEP
DESCRIPTION:The multispecies TASEP on a circle is a particle model whose partition function is connected to Macdonald polynomials at t=0. Multiline queues were introduced by Ferrari and Martin (2007) to compute the stationary distribution of the TASEP on a circle. Their construction admits a natural interpretation in terms of tensor products of Kirillov–Reshetikhin crystals of affine type A\, and a map from these tensor products to TASEP states is given by crystal-theoretic operations. We show that there is a natural Markov chain on the crystal that projects to the TASEP via this map.\nThe multispecies open boundary TASEP can be viewed as a type C analogue\, with its partition function connected to Koornwinder polynomials at t=0. However\, computing its stationary distribution beyond rank 1 has remained a longstanding open problem. Using Kirillov–Reshetikhin crystals of affine type C\, we construct type C multiline queues and a corresponding Ferrari–Martin pairing algorithm\, and show the crystal likewise admits a Markov chain that projects to the TASEP. Our construction is a combinatorial interpretation of the virtualization map for Kashiwara–Nakashima columns. We thus obtain a crystal-theoretic formula for the stationary distribution of the multispecies open boundary TASEP at the specialization alpha=beta=1. This is joint work with Jeronimo Valencia Porras.
UID:148388-21904175@events.umich.edu
URL:https://events.umich.edu/event/148388
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260904T002058
DTSTART;TZID=America/Detroit:20260911T153000
DTEND;TZID=America/Detroit:20260911T163000
SUMMARY:Conference / Symposium:Markley (2026-2027) (Housing)
DESCRIPTION:
UID:150757-21911431@events.umich.edu
URL:https://events.umich.edu/event/150757
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Sessions
LOCATION:South Lounge
CONTACT:
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