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DTSTAMP:20260304T123637
DTSTART;TZID=America/Detroit:20260311T130000
DTEND;TZID=America/Detroit:20260311T140000
SUMMARY:Lecture / Discussion:HET Brown Bag Seminar | Near-extremal black hole evaporation
DESCRIPTION:Over the last few years it has been understood that black holes sufficiently close to extremality receive large quantum corrections that modify their thermodynamic properties. In this talk\, I will explain how these large corrections modify the real time dynamics of near-extremal black holes. As an example\, the spectrum of emitted Hawking radiation differs drastically from the standard predictions of QFT in curved spacetime for such black holes.
UID:144820-21895978@events.umich.edu
URL:https://events.umich.edu/event/144820
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Talk,Brown Bag,Brown Bag Seminar,Lecture,Physics,Science
LOCATION:Randall Laboratory - 3481
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260226T095838
DTSTART;TZID=America/Detroit:20260311T130000
DTEND;TZID=America/Detroit:20260311T140000
SUMMARY:Workshop / Seminar:Interdisciplinary QC-CM Seminar | Synchrotron-based near field imaging of polar domain walls in Ni_3 TeO_6
DESCRIPTION:Domain walls are leading platforms for the development of ultra-low power switching and memory devices due to their ability to move\, be created and erased in real time\, and mitigate heat flux. Interface vs. wavelength size effects unfortunately preclude the measurement of phonons by traditional spectroscopic techniques\, making it difficult to unravel the primary excitations of the lattice and the symmetries that they represent across these functional interfaces. In this work\, we employed synchrotron-based near-field infrared nanospectroscopy to image 180◦ polar domain walls in multiferroic Ni_3 TeO_6. This is a unique platform because\, in addition to hosting polar and chiral domains that are interlocked with one another\, Ni_3 TeO_6 displays both charged and neutral interfaces depending upon the direction allowing the development of structure-property relations. Comparison of the contour\, fixed distance\, and fixed frequency plots reveals that charged walls are twice as wide as (and less stable than) the neutral interfaces due to additional strain created by the on-end chiral helices. Chirality is responsible for much of the interface stiffness and the hardening of certain phonons at the walls. The largest frequency shift\, for instance\, takes place in a mode consisting of a NiO_6 octahedral contraction and rotation along c\, modifying the force constant by approximately 1%. Frequency shifts at walls of both types indicate that polarization switches via an Ising-type mechanism due to structural constraints associated with interlocked chirality. Our estimates also reveal that phonon lifetimes are on the order of 1 ps or less\, with marked changes at the charged and neutral walls. The ability to quantify the consequences of charge accumulation at a functional interface in terms of phonon lifetimes opens new avenues for heat management in domain wall-based devices.\n\nReference: A. M. Sargent\, K. A. Smith\, X. Xu\, K. Du\, S.-W. Cheong\, L. Wehmeier\, G. L. Carr\, and J. L. Musfeldt\, Near-field infrared imaging of polar domain walls in Ni_3 TeO_6\, J. Applied Physics 138\, 055302 (2025).
UID:145460-21897375@events.umich.edu
URL:https://events.umich.edu/event/145460
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Science,Physics
LOCATION:West Hall - 340
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20251219T145250
DTSTART;TZID=America/Detroit:20260311T130000
DTEND;TZID=America/Detroit:20260311T134500
SUMMARY:Workshop / Seminar:Rackham Interdisciplinary Workshops Focus Group: Graduate Students
DESCRIPTION:This focus group is for graduate students to share their experiences about working with faculty through the Rackham Interdisciplinary Workshops program.
UID:143019-21891952@events.umich.edu
URL:https://events.umich.edu/event/143019
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Rgs Events,Rgs-events,Sessions
LOCATION:Virtual via Zoom
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260126T121732
DTSTART;TZID=America/Detroit:20260311T132000
DTEND;TZID=America/Detroit:20260311T135000
SUMMARY:Performance:Eva Albalghiti\, carillon
DESCRIPTION:Eva Albalghiti performs on the Ann & Robert H. Lurie Carillon\, an instrument of 60 bells with the lowest bell (bourdon) weighing 6 tons.\n\nThirty-minute recitals are performed on the Lurie Carillon every weekday that classes are in session. During these recitals\, visitors may take the elevator to level 2 to view the largest bells\, or to level 3 to see the carillonist performing. (Visitors subject to acrophobia are recommended to visit level 2 only.) An optional spiral stairway between levels 2 and 3 allows for up-close views of some of the largest bells.
UID:144518-21895449@events.umich.edu
URL:https://events.umich.edu/event/144518
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:North Campus,Music,Free
LOCATION:Lurie Ann & Robert H. Tower
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260204T105103
DTSTART;TZID=America/Detroit:20260311T140000
DTEND;TZID=America/Detroit:20260311T150000
SUMMARY:Class / Instruction:Canvas Accessibility for Panorama
DESCRIPTION:Join ITS-Accessibility for an engaging\, in-depth training session on using Panorama to enhance the accessibility of your Canvas course site. Panorama is a powerful accessibility tool integrated into Canvas that enables instructors and instructional support staff to create\, scan\, and fix digital content for accessibility directly within Canvas. In addition\, Panorama allows students to automatically generate alternative formats of Canvas content and attached files\, ensuring materials are accessible in the formats that work best for them. This training will provide practical guidance and step-by-step demonstrations to help you identify and resolve potential accessibility barriers\, making your Canvas course more inclusive and user-friendly for everyone.
UID:145041-21896579@events.umich.edu
URL:https://events.umich.edu/event/145041
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:accessibility,Disability,digital technology,Digital Accessibility,Canvas,assistive technology,Artificial Intelligence,access
LOCATION:Off Campus Location
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20251029T101040
DTSTART;TZID=America/Detroit:20260311T140000
DTEND;TZID=America/Detroit:20260311T153000
SUMMARY:Workshop / Seminar:Change it Up!
DESCRIPTION:Course details and registration are available on the Organizational Learning website.
UID:141276-21888529@events.umich.edu
URL:https://events.umich.edu/event/141276
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Intergroup Dialogue,Well-being,Leadership,Communication
LOCATION:Off Campus Location
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260311T090412
DTSTART;TZID=America/Detroit:20260311T143000
DTEND;TZID=America/Detroit:20260311T160000
SUMMARY:Workshop / Seminar:(Artificial) Intelligence saturation and the future of work
DESCRIPTION:Macroeconomic models typically treat AI as just another form of capital and predict a slowly evolving world\, while computer science scaling laws applied to the whole economy predict explosive growth and the potential for a singularity-like event. Both views gloss over the asymmetric reality that intelligence capital or AI scales at computer-science speeds\, whereas physical capital and labor do not. What’s missing is a unified\, parameter-driven framework that can nest assumptions from both economics and computer science to generate meaningful predictions of AI’s wage and output impacts. Here we use a constant elasticity of substitution (CES) production function framework that separates physical and intelligence sectors. Whereas physical capabilities let us affect the world\, intelligence capabilities let us do this as well: The two are complementary. Given complementarity between the two sectors\, the marginal returns to intelligence saturate\, no matter how fast AI scales. Because the price of AI capital is falling much faster than that of physical capital\, intelligence tasks are automated first\, pushing human labor toward the physical sector. The impact of automation on wages is theoretically ambiguous and can be non-monotonic in the degree of automation. A necessary condition for automation to decrease wages is that the share of employment in the intelligence sector decreases\; this condition is not sufficient because automation can raise output enough to offset negative reallocation effects. In our baseline simulation\, wages increase and then decrease with automation. Our interactive tool shows how parameter changes shift that trajectory. Wage decreases are steeper at high levels of automation when the outputs of the physical and intelligence sectors are more substitutable. After full automation\, more AI and more physical capital increase wages\, a classic prediction from standard production functions in capital and labor. Yet\, when intelligence and physical are complementary\, the marginal wage impact of AI capital saturates as AI grows large. More broadly\, the model offers a structured way to map contrasting intuitions from economics and computer science into a shared parameter space\, enabling clearer policy discussions and guiding empirical work to identify which growth and wage trajectories are plausible.
UID:143691-21893653@events.umich.edu
URL:https://events.umich.edu/event/143691
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:seminar,Labor,Economics
LOCATION:North Quad - 4325
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20260309T040203
DTSTART;TZID=America/Detroit:20260311T143000
DTEND;TZID=America/Detroit:20260311T153000
SUMMARY:Workshop / Seminar:Learning seminar in algebraic combinatorics: The Fundamental Theorem of Finite Semidistributive Lattices
DESCRIPTION:Last time\, we saw that the lattice of torsion classes is completely semidistributive. Motivated in part by this fact\, Reading–Speyer–Thomas proved a fundamental theorem of finite semidistributive lattices. We'll give the necessary definitions to state the theorem\, give some examples\, and explain the connection to torsion classes. Time permitting\, we will also describe canonical join representations and the canonical join complex of a finite semidistributive lattice.
UID:146323-21898879@events.umich.edu
URL:https://events.umich.edu/event/146323
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
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