Happening @ Michigan https://events.umich.edu/group/1965/rss RSS Feed for Happening @ Michigan Events at the University of Michigan. Department of Astronomy 2023-2024 DEI Series Presents: (March 29, 2024 9:30am) https://events.umich.edu/event/120082 120082-21844026@events.umich.edu Event Begins: Friday, March 29, 2024 9:30am
Location: West Hall
Organized By: Department of Physics

"Renaming the Magellanic Clouds"

The two brightest satellite galaxies of the Milky Way are most commonly referred to as the Large and Small Magellanic Clouds. However, Indigenous communities around the world have known of the Clouds for centuries—far before the first Western explorers catalogued them. Furthermore, Ferdinand Magellan (for whom the Clouds are named) was a controversial historical figure and is considered by many communities to be a symbol of a violent colonial era. In this talk, I will explain several reasons why astronomers should rename these galaxies. I will also discuss an ongoing movement to rename the Clouds, including a proposed resolution that will be voted on at the IAU General Assembly this year.

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Lecture / Discussion Thu, 14 Mar 2024 15:11:42 -0400 2024-03-29T09:30:00-04:00 2024-03-29T10:20:00-04:00 West Hall Department of Physics Lecture / Discussion Dr. Mia de los Reyes
HET Seminar | What's Done Cannot Be Undone: Non-Invertible Symmetries (March 29, 2024 3:00pm) https://events.umich.edu/event/116879 116879-21838139@events.umich.edu Event Begins: Friday, March 29, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

In massless QED, we find that the classical U(1) chiral symmetry is not completely broken by the Adler-Bell-Jackiw anomaly. Rather, it is resurrected as a generalized global symmetry labeled by the rational numbers. Intuitively, this new global symmetry in QED is a composition of the naive axial rotation and a fractional quantum Hall state. The conserved symmetry operators do not obey a group multiplication law, but a non-invertible fusion algebra. We further generalize our construction to QCD, and show that the neutral pion decay can be derived from a matching condition of the non-invertible global symmetry.

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Lecture / Discussion Tue, 27 Feb 2024 09:38:16 -0500 2024-03-29T15:00:00-04:00 2024-03-29T16:00:00-04:00 West Hall Department of Physics Lecture / Discussion West Hall
HEP-Astro Seminar | The Path to an Energy Frontier Muon Collider (April 1, 2024 3:00pm) https://events.umich.edu/event/120273 120273-21844496@events.umich.edu Event Begins: Monday, April 1, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

Muon colliders offer a unique path to multi-TeV, high luminosity lepton collisions. Muon collisions with a center-of-mass energy of 10 TeV or above would offer significant discovery potential where the constituent collision energies exceed those of the LHC program by an order of magnitude. Significant progress on the fundamental R&D and design concepts for such a machine has led to a new international effort to assemble a conceptual design within the next few years. This effort will assess the viability of such a machine as a successor to the LHC program. The remaining challenges and the R&D required to deliver a complete machine description will be described.

Mark Palmer Bio:
Mark Palmer is currently Director of the Accelerator Facilities Division in the Advanced Technology Research Office at Brookhaven National Laboratory. Previously, he headed the U.S. Muon Accelerator Program (MAP), which carried out research to develop muon accelerator technologies for future neutrino beam and lepton collider facilities. He was also part of the International Linear Collider design team and helped lead the CESR Test Accelerator research program at Cornell University. Mark received his doctorate in physics from Princeton University. Through the course of his career, he has conducted research in gravitational, high energy and accelerator physics.

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Workshop / Seminar Mon, 18 Mar 2024 10:19:02 -0400 2024-04-01T15:00:00-04:00 2024-04-01T16:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
CSCS Seminar | Controlling active matter - from drops to defects (April 2, 2024 11:30am) https://events.umich.edu/event/119396 119396-21842675@events.umich.edu Event Begins: Tuesday, April 2, 2024 11:30am
Location: Weiser Hall
Organized By: Department of Physics

The talk will be recorded for later viewing. Coffee and snacks will be available.

Abstract: We are active matter. From molecular motors noisily walking in living cells to the mesmerizing swirls in a starling flock, systems driven far from equilibrium by a sustained flux of energy through its constituents routinely exhibit stunning emergent phenomena that pose fundamental challenges to our understanding of the natural world. Much is known about what patterns and dynamics active systems can exhibit, but the inverse problem of controlling active matter is less explored. I will discuss our current work on searching for design principles to control localized excitations, drops etc., in active materials using ideas from control theory, optimal transport and symmetry-based approaches. I will conclude by highlighting future directions for embodying function, programmable response and computation in biological and synthetic active systems.

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Workshop / Seminar Tue, 27 Feb 2024 14:21:28 -0500 2024-04-02T11:30:00-04:00 2024-04-02T13:00:00-04:00 Weiser Hall Department of Physics Workshop / Seminar Suraj Shankar
CM-AMO Seminar | Giant nonlinearities and structured nonlinear optics in van der Waals crystals (April 2, 2024 4:00pm) https://events.umich.edu/event/111772 111772-21827558@events.umich.edu Event Begins: Tuesday, April 2, 2024 4:00pm
Location: West Hall
Organized By: Department of Physics

In recent years, explorations of the nonlinear optical (NLO) responses of van der Waals (vdW) crystals have proven to be integral to the study of their fundamental material symmetries, while also providing a platform to revolutionize optoelectronic and photonic devices. Here, we will discuss our recent efforts to probe the NLO properties of an emerging class of polar vdW semiconductors and extend vdW nonlinear optics to include the often-overlooked spatial degree of freedom of light. First, we will highlight our studies of bismuth telluro-halide crystals, where we observe giant second order optical nonlinearities in the telecom band and second-harmonic textures that are highly correlated to the orientation of their polar domains. We will then turn our focus to nonlinear frequency-mixing processes in vdW crystals driven by twisted light. Here, we demonstrate the harmonic scaling of orbital angular momentum and the free tuning of the wavelength, topological charge, and radial index of vortex light-fields, both supported by atomically thin semiconductors. Our work points to new materials and structured-illumination-based methods to dramatically extend the versatility of vdW materials for classical and quantum communication nanotechnologies.

Bio: Prashant Padmanabhan is a Staff Scientist and Principal Investigator at the Center for Integrated Nanotechnologies (CINT) at Los Alamos National Laboratory. His current interests include using ultrafast pulses spanning the terahertz to extreme ultraviolet regime to control spin-dependent phenomena in van der Waals magnets, explore nonlinear optical processes in topological materials, and exploit spatial mode structuring to drive emergent phenomena in quantum materials. Prashant received his Ph.D. in Applied Physics from the University of Michigan in the group of Dr. Roberto Merlin before pursuing postdoctoral research at the University of Cologne, Germany and Los Alamos National Laboratory.

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Workshop / Seminar Wed, 27 Mar 2024 08:11:00 -0400 2024-04-02T16:00:00-04:00 2024-04-02T17:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Applied Physics Seminar | Insights from Heavy Ion Composition in the Heliosphere (April 3, 2024 12:00pm) https://events.umich.edu/event/120681 120681-21845121@events.umich.edu Event Begins: Wednesday, April 3, 2024 12:00pm
Location: Off Campus Location
Organized By: Department of Physics

Abstract:
Observations of the properties of elements heavier than helium in the heliosphere, including their charge state and elemental composition, can reveal key information about their origin. Space borne ion mass spectrometers measure these heavy ions and have flown on a variety of trajectories through the solar system. Data from these spectrometers have provided critical information on how plasma originates in the solar corona and is accelerated out into the heliosphere. For example, highly ionized material observed inside interplanetary coronal mass ejections (ICMEs) originates from explosively heated plasma low in the solar corona during eruptions. Additional sources of plasma outside the Sun also contribute material to the solar wind and can be studied to understand the Sun's interaction with solar system bodies. For example, interstellar material, neutral material and dust in the solar system, and material stripped from comets and planets can be picked up by the solar wind and retain unique fingerprints about their origin and physical processes in the heliosphere. My talk will review the state of the field of heavy ion composition in the heliosphere, highlight U of M developed heavy ion mass spectrometers, and discuss future directions for research.

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Lecture / Discussion Mon, 25 Mar 2024 09:56:27 -0400 2024-04-03T12:00:00-04:00 2024-04-03T13:00:00-04:00 Off Campus Location Department of Physics Lecture / Discussion
HET Brown Bag Seminar | Cryptographic Censorship (April 3, 2024 1:00pm) https://events.umich.edu/event/117229 117229-21838852@events.umich.edu Event Begins: Wednesday, April 3, 2024 1:00pm
Location: Randall Laboratory
Organized By: Department of Physics

The classical formulation of the weak cosmic censorship conjecture (WCCC) – the statement that singularities resulting from gravitational collapse are generically hidden behind event horizons – is most probably false. However, I will argue that there is compelling evidence that some version of it should be true in quantum gravity. Working towards a quantum gravitational formulation of the WCCC, I will prove “Cryptographic Censorship”, a theorem that provides a general condition for the formation of event horizons in AdS/CFT: sufficiently (pseudo)random boundary dynamics. I will also provide a classification of sizes of singularities, and show that “large”, “classical” singularities – the ones that the WCCC should rule out – are compatible with sufficiently (pseudo)random dynamics. Thus, if such singularities are indeed described by (pseudo)random dynamics, then they cannot exist in the absence of event horizons.

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Lecture / Discussion Tue, 26 Mar 2024 12:26:07 -0400 2024-04-03T13:00:00-04:00 2024-04-03T14:00:00-04:00 Randall Laboratory Department of Physics Lecture / Discussion Randall Laboratory
Department Colloquium | Quantum Entanglement in Nature (April 3, 2024 3:00pm) https://events.umich.edu/event/119601 119601-21843058@events.umich.edu Event Begins: Wednesday, April 3, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

Entanglement is the strangest feature of quantum theory, which Einstein dubbed "spooky action at a distance". Quantum entanglement can occur on a large scale with millions of electrons, leading to "strange metals" and novel superconductors which can conduct electricity without resistance even at relatively high temperatures. Remarkably, related entanglement structures also arise across the horizon of a black hole, and give rise to Hawking’s black hole entropy. I will describe a simple model of many particle quantum entanglement which has shed light on long-standing problems in these distinct physical systems.

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Workshop / Seminar Mon, 04 Mar 2024 09:16:58 -0500 2024-04-03T15:00:00-04:00 2024-04-03T16:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Quantum Research Institute Seminar | Engineering of atomic and solid-state quantum emitters for sensing (April 4, 2024 11:00am) https://events.umich.edu/event/120811 120811-21845331@events.umich.edu Event Begins: Thursday, April 4, 2024 11:00am
Location: Michigan League
Organized By: Department of Physics

Jennifer Choy, Assistant Professor at the Department of Electrical and Computer Engineering at UW–Madison, will be presenting "Engineering of atomic and solid-state quantum emitters for sensing" as part of the Quantum Research Institute's winter seminar series from 11am - noon in the Henderson Room (3rd floor) in the Michigan League. A Zoom option is also provided.

Seminar Description:

I will describe the realization of quantum sensors based on two material platforms: alkali atoms such as rubidium, and spin defects in diamond. These platforms have complementary properties that make each uniquely advantageous for certain sensing applications, as well as challenges that currently limit their sensing performance and functionality. I will discuss engineering approaches to miniaturize and improve the performance of quantum sensors, including photonic-integration of atomic magnetometers, improving light-matter interactions with solid-state spin defects, and stabilization of near-surface quantum emitters through surface treatments.

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Workshop / Seminar Wed, 27 Mar 2024 13:28:34 -0400 2024-04-04T11:00:00-04:00 2024-04-04T12:00:00-04:00 Michigan League Department of Physics Workshop / Seminar Seminar flyer
Department of Astronomy 2023-2024 Colloquium Series Presents: (April 4, 2024 3:30pm) https://events.umich.edu/event/120083 120083-21844027@events.umich.edu Event Begins: Thursday, April 4, 2024 3:30pm
Location: West Hall
Organized By: Department of Physics

"Protostars and protoplanetary disks with JWST: probing the material that builds planets"

Understanding how stars and planets are formed requires observations at long wavelengths in order to penetrate their dusty natal clouds. Thanks to its high sensitivity and resolution, Webb is a major step
forward in studying the physical and chemical structure of embedded protostars and disks. This talk will present an overview of recent results from a number of JWST programs on gaseous and icy molecules, from water to a variety of organic species. Together with related ALMA data, they point to a rich chemistry with a varying composition and C/O ratio that may be linked to stellar mass and to the physical structure of the planet-forming zones of disks.

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Lecture / Discussion Thu, 14 Mar 2024 15:10:34 -0400 2024-04-04T15:30:00-04:00 2024-04-04T16:20:00-04:00 West Hall Department of Physics Lecture / Discussion Dr. Ewine van Dishoeck
Interdisciplinary QC-CM Seminar | Bridging Hubbard and quantum Hall physics in twisted bilayer graphene (April 4, 2024 4:00pm) https://events.umich.edu/event/120739 120739-21845199@events.umich.edu Event Begins: Thursday, April 4, 2024 4:00pm
Location: West Hall
Organized By: Department of Physics

Early on it was noticed that twisted bilayer graphene has elements in common with two paradigmatic examples of strongly correlated physics: Hubbard physics and quantum Hall physics. Indeed, twisted bilayer graphene hosts flat topological bands, but these bands host concentrated charge density, experimental signs of fluctuating magnetism, and signs of unconventional superconductivity. The emergence of fluctuating moments is particularly surprising, as localized Wannier states do not exist in topological bands. I will discuss a model for the twisted bilayer graphene flat bands that centers the concentration of charge density and, relatedly, the concentration of Berry flux. After establishing good quantitative agreement with more microscopic models, I will show how the model hosts parametrically decoupled flavor moments. These flavor moments are tied to Wannier states that are power-law delocalized, with infinite localization length, that nonetheless have parametrically small overlap with each other. I will conclude by discussing some experimental implications for this picture.

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Workshop / Seminar Thu, 28 Mar 2024 07:18:12 -0400 2024-04-04T16:00:00-04:00 2024-04-04T17:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
HET Seminar | Recent developments in N=4 Yang-Mills Amplitudes (April 5, 2024 3:00pm) https://events.umich.edu/event/111198 111198-21842585@events.umich.edu Event Begins: Friday, April 5, 2024 3:00pm
Location:
Organized By: Department of Physics

The most important experimental probes of fundamental physics involve
the scattering of elementary particles. Over the years we have seen
significant progress in understanding the properties of scattering
amplitudes and in our ability to carry out new computations both for
theoretical and phenomenological purposes. I will overview some recent
developments in N=4 Yang-Mills amplitudes.

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Lecture / Discussion Sun, 25 Feb 2024 21:01:54 -0500 2024-04-05T15:00:00-04:00 2024-04-05T16:00:00-04:00 Department of Physics Lecture / Discussion
Saturday Morning Physics | Bioinspired Microrobotics: Lessons from Nature (Family-Friendly Event) (April 6, 2024 10:30am) https://events.umich.edu/event/118656 118656-21841372@events.umich.edu Event Begins: Saturday, April 6, 2024 10:30am
Location: Weiser Hall
Organized By: Department of Physics

Join us in person or via live stream: https://youtu.be/lbsL6DXRfHE

As we miniaturize robotic devices, we are limited by traditional materials, components, and designs and need to come up with innovative strategies for power, actuation, and control at small scales. Insects, cephalopods, and bacteria hold solutions to these challenges and have inspired new designs and capabilities in small-scale soft robotics.

This is a family-friendly event!

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Presentation Wed, 06 Mar 2024 10:05:19 -0500 2024-04-06T10:30:00-04:00 2024-04-06T11:30:00-04:00 Weiser Hall Department of Physics Presentation Control Microrobot
CM-AMO Seminar (April 9, 2024 4:00pm) https://events.umich.edu/event/120800 120800-21845319@events.umich.edu Event Begins: Tuesday, April 9, 2024 4:00pm
Location: West Hall
Organized By: Department of Physics

TBA

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Workshop / Seminar Wed, 27 Mar 2024 11:36:06 -0400 2024-04-09T16:00:00-04:00 2024-04-09T17:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
HET Brown Bag Seminar | (April 10, 2024 1:00pm) https://events.umich.edu/event/117230 117230-21838853@events.umich.edu Event Begins: Wednesday, April 10, 2024 1:00pm
Location: Randall Laboratory
Organized By: Department of Physics

TBD

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Lecture / Discussion Tue, 16 Jan 2024 12:30:58 -0500 2024-04-10T13:00:00-04:00 2024-04-10T14:00:00-04:00 Randall Laboratory Department of Physics Lecture / Discussion Randall Laboratory
Department Colloquium | Neutrino Astronomy, From Dream to Reality (April 10, 2024 3:00pm) https://events.umich.edu/event/119875 119875-21843713@events.umich.edu Event Begins: Wednesday, April 10, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

The Universe has been studied using light since the dawn of astronomy, when starlight captured the human eye. The IceCube Neutrino Observatory, located at the geographic South Pole, observes the Universe in a different and unique way: in high-energy neutrinos. IceCube's discovery in 2013 of a diffuse celestial neutrino radiation started an era of neutrino astronomy. Searches for astronomical sources responsible for creating these neutrinos have been ongoing for over a decade, while combating background rates that are many orders of magnitude higher. Last year, the first observation of our own Milky Way galaxy in neutrinos was announced, marking the start of Galactic neutrino astronomy. This talk will cover how this observation was made, other milestone observations by IceCube, and the state of neutrino astronomy.

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Workshop / Seminar Fri, 08 Mar 2024 08:51:22 -0500 2024-04-10T15:00:00-04:00 2024-04-10T16:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Interdisciplinary QC-CM Seminar | Emergent phases in quantum magnets: fractionalization, fragmentation and new particles (April 11, 2024 4:00pm) https://events.umich.edu/event/120740 120740-21845200@events.umich.edu Event Begins: Thursday, April 11, 2024 4:00pm
Location: West Hall
Organized By: Department of Physics

Moire superlattices of van der Waals materials have surfaced as new tunable quantum platforms for the realization of emergent phases. While moire-induced electronic phases have been extensively explored over the past few years, moire engineering of magnetic phases is a newer emerging topic. In the first part of my talk, I will discuss how stacking dependent interlayer exchange can be used to create novel spin textures such as skyrmions. I will illustrate this mechanism by applying it to twisted bilayers of Cr-based trihalides (1) and α-RuCl3 (2). In the second part, I will focus on quantum spin liquid bilayers and discuss how twist angle and interlayer exchange can be utilized to create new topological phases with new emergent quasiparticles such as ‘fractionalized Goldstone bosons’ in these systems (3,4,5).

(1) M. Akram, H. LaBollita, D. Dey, J. Kapeghian, O. Erten, A. Botana Nano Lett. 15, 6633 (2021).
(2) M. Akram, J. Kapeghian, J. Das, R. Valenti, A. Botana, O. Erten Nano Lett. 24, 890 (2024).
(3) E. Nica, M. Akram, A. Vijayvargia, R. Moessner, O. Erten npj Quantum Materials 8, 9 (2023).
(4) A. Vijayvargia, E. Nica, R. Moessner, Y.-M. Lu, O. Erten Phys. Rev. Research 5, L022062 (2023).
(5) A. Vijayvargia, U. Seifert, O. Erten Phys. Rev. B 109, 024439 (2024).

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Workshop / Seminar Wed, 27 Mar 2024 12:24:41 -0400 2024-04-11T16:00:00-04:00 2024-04-11T17:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Leinweber Center for Theoretical Physics Public Lecture | Are we alone in the universe? (April 11, 2024 7:00pm) https://events.umich.edu/event/120190 120190-21844206@events.umich.edu Event Begins: Thursday, April 11, 2024 7:00pm
Location: Rackham Graduate School (Horace H.)
Organized By: Department of Physics

After decades of searching, scientists have still found no evidence of extraterrestrial civilizations, or indeed of any life beyond Earth. So are we looking for the wrong thing in the wrong place? Is the transition from non-life to life easy and widespread, or a chemical fluke? Might there be new physics lurking in living matter? The answers to these questions affect where we might look for a second genesis. Rather than pinning our hopes on a message from ET, we need to broaden the search for general ‘biosignatures’ and ‘technosignatures’ in the solar system and beyond.

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Lecture / Discussion Thu, 14 Mar 2024 12:45:45 -0400 2024-04-11T19:00:00-04:00 2024-04-11T20:00:00-04:00 Rackham Graduate School (Horace H.) Department of Physics Lecture / Discussion Rackham Graduate School (Horace H.)
Structural mechanisms of DNA priming by polymerase α–primase (April 12, 2024 12:00pm) https://events.umich.edu/event/109108 109108-21821076@events.umich.edu Event Begins: Friday, April 12, 2024 12:00pm
Location: Chemistry Dow Lab
Organized By: Department of Physics

The mechanism by which polymerase α–primase (polα–primase) synthesizes chimeric RNA-DNA primers of defined length and composition, necessary for replication fidelity and genome stability, is unknown. Here, we report cryo-EM structures of polα–primase in complex with primed templates representing various stages of DNA synthesis. Our data show how interaction of the primase regulatory subunit with the primer 5′-end facilitates handoff of the primer to polα and increases polα processivity, thereby regulating both RNA and DNA composition. The structures detail how flexibility within the heterotetramer enables synthesis across two active sites and provide evidence that termination of DNA synthesis is facilitated by reduction of polα and primase affinities for the varied conformations along the chimeric primer/template duplex. Together, these findings elucidate a critical catalytic step in replication initiation and provide a comprehensive model for primer synthesis by polα–primase.

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Workshop / Seminar Thu, 14 Mar 2024 15:23:02 -0400 2024-04-12T12:00:00-04:00 2024-04-12T13:00:00-04:00 Chemistry Dow Lab Department of Physics Workshop / Seminar Chemistry Dow Lab
LAGS Seminar | Lessons Learned in a National Laboratory Career (April 12, 2024 12:00pm) https://events.umich.edu/event/120311 120311-21844550@events.umich.edu Event Begins: Friday, April 12, 2024 12:00pm
Location: West Hall
Organized By: Department of Physics

By sharing my personal journey through a successful career at Los Alamos National Laboratory, I would like to convey the lessons learned along the way – national laboratories as a career path, career strategy, overcoming adversity, and some of the soft skills that they don’t teach you in graduate skill. National laboratories offer a career path rather different from academia, de-emphasizing teaching and emphasizing national service of several kinds. Success in my case came from flexibility and being able to find challenge in both fundamental and applied research. Careers are not guaranteed to go smoothly, and mine certainly did not, but drawing on one’s values and one’s colleagues is a great help in difficult times. The technical skills taught in graduate school are a necessary but not sufficient condition for career success. Also important are communication to a wide range of audiences, particularly in proposal writing, and project management for projects of all sizes. In the end, it all worked out, along a path that took me from high-energy astrophysics to laser fusion and back again, to projects including Los Alamos’s first small satellite, and finishing the full-time phase of my career with the best job at the Laboratory, overseeing advanced R&D across the breadth of the 15,000-employee organization. I hope that what I learned can, in some small way, guide and inspire the next generations of scientific leaders.

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Workshop / Seminar Tue, 19 Mar 2024 07:25:52 -0400 2024-04-12T12:00:00-04:00 2024-04-12T13:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
HET Seminar | On Causality Conditions in de Sitter Spacetime (April 12, 2024 3:00pm) https://events.umich.edu/event/117228 117228-21838851@events.umich.edu Event Begins: Friday, April 12, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

Causality conditions provide powerful constraints on low energy theories. In this talk, I will discuss how standard causality conditions of AdS and flat spacetimes can be extended to de Sitter spacetime. In particular, I will consider the Shapiro time delay experienced by a particle in a black hole or shockwave background and discuss how "fastest null geodesics" can be defined using spatial shifts on the boundary of de Sitter and the relevance of the "stretching" of the de Sitter Penrose diagram. I will discuss a few illustrative examples.

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Lecture / Discussion Thu, 28 Mar 2024 10:59:25 -0400 2024-04-12T15:00:00-04:00 2024-04-12T16:00:00-04:00 West Hall Department of Physics Lecture / Discussion West Hall
HEP-Astro Seminar | Astrophysics and Cosmology with LIGO-Virgo-KAGRA’s Black Holes (April 15, 2024 3:00pm) https://events.umich.edu/event/120293 120293-21844516@events.umich.edu Event Begins: Monday, April 15, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

The LIGO-Virgo-KAGRA Collaboration has observed over 70 gravitational-wave sources to date, including mergers between black holes, neutron stars, and mixed neutron star—black holes. These neutron stars and black holes connect many astrophysical puzzles, including the lives and deaths of stars, cosmic chemistry, and the growth of structure. Furthermore, gravitational waves from these mergers directly encode their distances, allowing us to measure the expansion history of the Universe. I will describe some astrophysical and cosmological lessons from the latest gravitational-wave discoveries, and discuss what we can expect to learn from future multi-messenger observations.

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Workshop / Seminar Mon, 18 Mar 2024 12:57:36 -0400 2024-04-15T15:00:00-04:00 2024-04-15T16:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
CM-AMO Seminar (April 16, 2024 4:00pm) https://events.umich.edu/event/111773 111773-21827560@events.umich.edu Event Begins: Tuesday, April 16, 2024 4:00pm
Location: West Hall
Organized By: Department of Physics

TBA

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Workshop / Seminar Wed, 27 Mar 2024 08:11:26 -0400 2024-04-16T16:00:00-04:00 2024-04-16T17:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
HET Brown Bag Seminar | (April 17, 2024 1:00pm) https://events.umich.edu/event/117231 117231-21838854@events.umich.edu Event Begins: Wednesday, April 17, 2024 1:00pm
Location: Randall Laboratory
Organized By: Department of Physics

TBD

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Lecture / Discussion Tue, 16 Jan 2024 12:32:38 -0500 2024-04-17T13:00:00-04:00 2024-04-17T14:00:00-04:00 Randall Laboratory Department of Physics Lecture / Discussion Randall Laboratory
Department Colloquium | Reciprocal activity as constraints on the biological production of work (April 17, 2024 3:00pm) https://events.umich.edu/event/120790 120790-21845302@events.umich.edu Event Begins: Wednesday, April 17, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

On small length-scales, the mechanics of soft materials may be dominated by their interfacial properties as opposed to their bulk properties. These effects are described by equilibrium models of elasto-capillarity and wetting. In these models, interfacial energies and bulk material properties are held constant. However, in biological materials, including living cells and tissues, these properties are not constant, but are ‘actively’ regulated and driven far from thermodynamic equilibrium. As a result, the constraints on work produced during the various physical behaviors of the cell are unknown. Here, by measurement of elasto-capillary effects during cell adhesion, growth and motion, we demonstrate that interfacial and bulk parameters violate equilibrium constraints and exhibit anomalous effects, which depend upon a distance from equilibrium. However, their anomalous properties are reciprocal, and thus in combination reliably define energetic constraints on the production of work arbitrarily far from equilibrium. These results provide basic principles that govern biological assembly and behavior.

Bio: Michael Murrell received his BS at Johns Hopkins University, and his PhD at MIT. He then had a joint postdoctoral fellowship between the Institute for Biophysical Dynamics at the University of Chicago, and the Institut Curie, in Paris, France. He now runs the Laboratory for Living Matter within the Systems Biology Institute at the Yale West Campus, as part of the Biomedical Engineering and Physics Departments. His laboratory studies the non-equilibrium properties of biological systems, as well as designs and engineers novel bio-inspired materials. His group comprises a diverse group of experimentalists, computational scientists and theorists all driven to understand some of the most fundamental questions in biophysics.

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Workshop / Seminar Wed, 27 Mar 2024 09:48:09 -0400 2024-04-17T15:00:00-04:00 2024-04-17T16:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Interdisciplinary QC-CM Seminar (April 18, 2024 4:00pm) https://events.umich.edu/event/120741 120741-21845201@events.umich.edu Event Begins: Thursday, April 18, 2024 4:00pm
Location: West Hall
Organized By: Department of Physics

TBA

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Workshop / Seminar Tue, 26 Mar 2024 06:27:59 -0400 2024-04-18T16:00:00-04:00 2024-04-18T17:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Saturday Morning Physics | Van Loo Family Endowment Student Presentations (April 20, 2024 10:30am) https://events.umich.edu/event/118752 118752-21841571@events.umich.edu Event Begins: Saturday, April 20, 2024 10:30am
Location: Weiser Hall
Organized By: Department of Physics

Join us in person or via live stream: https://youtu.be/mxa5Q9Kdq5U

Graduate student presentations by two U-M PhD candidates: "Making Powerful Lasers More Powerful," Tayari Coleman, Ph.D. Candidate (U-M Applied Physics) and "The Physics of Games and Rankings," Max Jerdee, Ph.D. Candidate (U-M Physics and Complex Systems)

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Presentation Wed, 06 Mar 2024 16:49:54 -0500 2024-04-20T10:30:00-04:00 2024-04-20T11:30:00-04:00 Weiser Hall Department of Physics Presentation Weiser Hall
HEP-Astro Seminar (April 22, 2024 3:00pm) https://events.umich.edu/event/120742 120742-21845202@events.umich.edu Event Begins: Monday, April 22, 2024 3:00pm
Location: West Hall
Organized By: Department of Physics

TBA

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Workshop / Seminar Tue, 26 Mar 2024 07:49:25 -0400 2024-04-22T15:00:00-04:00 2024-04-22T16:00:00-04:00 West Hall Department of Physics Workshop / Seminar West Hall
Biophysics Symposium 2024 (May 31, 2024 9:00am) https://events.umich.edu/event/120414 120414-21844744@events.umich.edu Event Begins: Friday, May 31, 2024 9:00am
Location: Rackham Graduate School (Horace H.)
Organized By: Department of Physics

Faculty Talks:
Shyamal Mosalaganti (LSI)
Dawen Cai (CDB)
Somin Eunice Lee (EECS)

More info TBD

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Conference / Symposium Wed, 20 Mar 2024 11:11:21 -0400 2024-05-31T09:00:00-04:00 2024-05-31T16:00:00-04:00 Rackham Graduate School (Horace H.) Department of Physics Conference / Symposium Rackham Graduate School (Horace H.)