Shopping cart

close

Upcoming Events

Event Date and Location Summary
David Vanderbilt (Rutgers University) Thu. February 4th, 2021
4:00 pm-4:00 pm
at Via Zoom

Continue reading… David Vanderbilt (Rutgers University)

Gino Isidori (University of Zurich) Thu. February 18th, 2021
4:00 pm-5:00 pm
at Via Zoom

Continue reading… Gino Isidori (University of Zurich)

Ashvin Vishwanath (Harvard University) Thu. March 18th, 2021
4:00 pm-5:00 pm
at Via Zoom

Continue reading… Ashvin Vishwanath (Harvard University)

Amy Rowat (UCLA Integrative Biology) Thu. April 8th, 2021
4:00 pm-5:00 pm
at Via Zoom

Continue reading… Amy Rowat (UCLA Integrative Biology)

Avi Loeb (Harvard) Thu. April 29th, 2021
4:00 pm-5:00 pm
at Via Zoom

Continue reading… Avi Loeb (Harvard)

Past Events

Event Date Summary
Steve Fetter (School of Public Policy, University of Maryland) Thu. November 19th, 2020
4:00 pm-5:00 pm

Link to video

Reducing Nuclear Weapons and the Risk of Nuclear War

The Cold War ended 30 years, but nuclear weapons and the threat of nuclear war are still with us. Nine countries together deploy about 10,000 nuclear weapons, most with a destructive potential an order of magnitude greater than the bomb that destroyed Hiroshima. The United States and Russia, which together account for 90 percent of global stockpiles, each maintain about 1000 nuclear weapons on constant alert, ready to be launched in a few minutes. Arms control agreements that have constrained US and Russian arsenals and provided stability are on the brink of collapse,

Continue reading… Steve Fetter (School of Public Policy, University of Maryland)

Helen Gleeson (University of Leeds) Thu. November 12th, 2020
4:00 pm-5:00 pm

Link to video

 

From cat skin to submarines – new materials that are a bit of a stretch.

Liquid crystals are self-organising fluids that are perhaps best known for their use in displays (LCDs) and much of the research in the area over the past 30 years or so has been focused on achieving faster switching and more complex images in flat panel TVs. However, such technology is now mature and for some time now new, exciting properties of liquid crystals that might lead to rather futuristic applications have been emerging.  

Continue reading… Helen Gleeson (University of Leeds)

Terry Sejnowski (Salk Institute) Thu. November 5th, 2020
4:00 pm-5:00 pm

Link to video

Traveling Waves in Brains

What we know about brain function has tracked technology.  The discovery of weak electrical signals from the surface of the scalp by Hans Berger in 1924 hinted at complex oscillatory activity.  Recordings from single neurons in the cerebral cortex by David Hubel and Torsten Wiesel in 1960 made possible by the tungsten microelectrode showed that each neuron in the visual cortex responds selectively to
visual stimuli.  The development of microelectrode arrays in the 21st century has revealed a mesoscopic
surprise:  The oscillations in the cortex are not synchronous,

Continue reading… Terry Sejnowski (Salk Institute)

Yi-Zen Chu (National Central University, Taiwan) Thu. October 29th, 2020
4:00 pm-5:00 pm

Link to video

Light Does Not Always Travel On The Light Cone

Despite the massless character of their associated particles, electromagnetic and gravitational radiation do not travel strictly on the null cone in curved spacetimes. This ‘tail’ phenomenon was first uncovered by the mathematician Jacques Hadamard in his study of partial differential equations; and introduced to physicists by Robert Brehme and Bryce DeWitt — they pointed out that there is a novel self-force on electromagnetically charged systems arising from this inside-the-light-cone signal. The gravitational counterpart of this self-force (derived by Mino, Misao Sasaki,

Continue reading… Yi-Zen Chu (National Central University, Taiwan)

Nadya Mason (University of Illinois, Urbana-Champaign) Thu. October 22nd, 2020
4:00 pm-5:00 pm

Link to video

Electronic Transport in Strain-Engineered Graphene 

There is wide interest in using strain-engineering to modify the physical properties of 2D materials, for both basic science and applications. Deformations of graphene, for example, can lead to the opening of band gaps, as well as the generation of pseudo-magnetic fields and novel electronic states. We demonstrate how controllable, device-compatible strain patterns in graphene can be engineered by depositing graphene on corrugated substrates. We discuss several techniques for creating corrugated substrates, focusing on periodic spherical curvature patterns in the form of closely packed nanospheres.

Continue reading… Nadya Mason (University of Illinois, Urbana-Champaign)

Robin Selinger (Advanced Materials and Liquid Crystal Institute, Kent State Univ) Thu. October 15th, 2020
4:00 pm-5:00 pm

Link to video

Modeling Mechanical Actuation in Liquid Crystal Polymers

Liquid crystal polymer networks undergo reversible shape change in response to any stimulus that affects their nematic order, allowing them to flex like artificial muscles. These soft actuators can be fabricated as thin films, surface coatings, or 4D printed solids and have potential applications in soft robotics, biomedical devices, microfluidics, and sensors. Trajectories for shape change are “programmed” by patterning the nematic director when the polymer is cross-linked. Actuation is induced when the strength of nematic order is modulated by stimuli such as a change of temperature,

Continue reading… Robin Selinger (Advanced Materials and Liquid Crystal Institute, Kent State Univ)

Netta Engelhardt (MIT) Thu. October 8th, 2020
4:00 pm-5:00 pm

Link to video

The Information Paradox in the Age of Holographic Entanglement Entropy

The black hole information paradox — whether information escapes an evaporating black hole or not —  remains one of the greatest unsolved mysteries of theoretical physics. The apparent conflict between validity of semiclassical gravity at low energies and unitarity of quantum mechanics has long been expected to find its resolution in the deep quantum gravity regime. Recent developments in the holographic dictionary and in particular its application to entanglement, however, have shown that a semiclassical analysis of gravitational physics has a hallmark feature of unitary evolution.

Continue reading… Netta Engelhardt (MIT)

Ken Singer et al (CWRU Physics and Art History) Thu. October 1st, 2020
4:00 pm-5:00 pm

Link to video

Data Science in Art: Discerning the Painter’s Hand

Ken Singer, Ambrose Swasey Professor of Physics

with

Michael Hinczewski, Warren E. Rupp Associate Professor of Physics

Ina Martin, Senior Research Associate (Physics), Adjunct Faculty in the Department of Materials Science and Engineering

Betsy Bolman, Elsie B. Smith Professor in the Liberal Arts and Chair, Department of Art History and Art 

The Departments of Art History and Art, Physics, Materials Science and Engineering,

Continue reading… Ken Singer et al (CWRU Physics and Art History)

Carlos Arguelles Delgado (Harvard University) Thu. September 24th, 2020
4:00 pm-5:00 pm

Link to video

Challenging the Standard Model With High-Energy Neutrinos

Particle physicists are living in interesting times. We are faced with the paradox of a highly predictive theory –the Standard Model — that is filled with patterns that are hard to explain. We are also faced with “known unknowns,” like dark matter. Right now, neutrinos are the only particles exhibiting beyond Standard Model behavior, seen in the flavor transitions called neutrino oscillations, which are due to neutrino mass. This is an important clue towards a larger theory. Building on this, I am interested in what other types of flavor transitions neutrinos may have due to new particles,

Continue reading… Carlos Arguelles Delgado (Harvard University)

Axel Hoffmann (University of Illinois, Urbana-Champaign) Thu. September 17th, 2020
4:00 pm-5:00 pm

Link to video

Topological Quasiparticles: Magnetic Skyrmions

The field of spintronics, or magnetic electronics, is maturing and giving rise to new subfields [1].  An important ingredient to the vitality of magnetism research in general is the large complexity due to competitions between interactions crossing many lengthscales and the interplay of magnetic degrees of freedom with charge (electric currents), phonon (heat), and photons (light) [2].  One perfect example, of the surprising new concepts being generated in magnetism research is the recent discovery of magnetic skyrmions.  Magnetic skyrmions are topologically distinct spin textures that are stabilized by the interplay between applied magnetic fields,

Continue reading… Axel Hoffmann (University of Illinois, Urbana-Champaign)

Guilherme Pimentel (Amsterdam, Leiden) Thu. September 10th, 2020
4:00 pm-5:00 pm

Link to video
 

Decoding Primordial Fluctuations
 
All the information we will ever obtain from the primordial universe is imprinted in the spatial correlations of fluctuations at the hot Big Bang. I will explain how an influx of ideas from various areas of fundamental physics is providing us with new conceptual and practical tools to decode the physics of these primordial fluctuations. A thorough understanding of the fluctuations will give us insight into particle physics at the highest energies and may provide a window into the nature of spacetime itself.

 

Continue reading… Guilherme Pimentel (Amsterdam, Leiden)

Aviva Rothman (CWRU History) Thu. September 3rd, 2020
4:00 pm-5:00 pm

Link to video

Conversations with the Starry Messenger: Kepler, Galileo, and the New Science

Upon hearing of Galileo’s new telescopic discoveries, Kepler wrote a book in support of Galileo’s work.  Yet that book was read by many as an indictment of Galileo, rather than a defense.  This story, and the subsequent relationship between these two famous astronomers, will shed light on the contested nature of science at the dawn of the telescopic age, and on alternate visions of what the ideal scientist ought to be like.

 


Scroll To Top