Search for tag: "physics colloquium"

Brian C. Sawyer - Compact Penning Traps for Quantum Science with Cold Atomic Ions

Penning ion traps are useful experimental platforms for quantum simulation, mass spectrometry, precision metrology, and molecular ion spectroscopy. The GTRI Quantum Systems Division (QSD) has…

From  Katie Gentilello 2 plays 0  

Gang Cao - Opportunities created by spin-orbit interactions

Effects of spin-orbit interactions in condensed matter are an important and rapidly evolving topic. A sea change occurred with the discovery of spin-orbit interactions in graphene by Mele and Kane,…

From  Katie Gentilello 3 plays 0  

Ana Maria Rey - Optical lattice clocks: From Timekeepers to Spies of the Quantum Realm

Harnessing the behavior of complex systems is at the heart of quantum technologies. Precisely engineered ultracold gases are emerging as a powerful tool for this task. In this talk I will explain how…

From  Katie Gentilello 3 plays 0  

Mariel Borowitz - Protecting the Space Environment: Sustainability and Security

In recent years, the number of objects in space has grown rapidly, and this growth is projected to continue to accelerate over the next decade. There has also been increased military activity in…

From  Katie Gentilello 1 plays 0  

Margaret Gardel - Physics of Morphogenetic Matter

My lab studies how the movement and shape of living cells is controlled by living materials constructed by protein assemblies within the cell interior. In this talk, I will describe my lab’s…

From  Katie Gentilello 0 plays 0  

Xiaoxing Xi - Crackdown on Academic Collaboration with China Harms American Science

Academic collaboration with China was once encouraged by the US government and universities. As tension between the two countries rises rapidly, those who did, especially scientists of Chinese…

From  Katie Gentilello 6 plays 0  

Mikhail Shifman - The Beginning of the Quantum Era

Shifman reviews the growth of quantum physics from its inception in the beginning of the 20th century to its maturity 50 years later. His narrative includes dramatic stories of the quantum pioneers…

From  Katie Gentilello 2 plays 0  

Murray Daw - Collapse of the Collapse: Physicists Return to Reality

Recent developments[1] have shown that the collapse hypothesis is self-inconsistent and is no longer a viable theory. (The collapse hypothesis in quantum mechanics is that the state of a system is…

From  Katie Gentilello 9 plays 0  

John E. Thomas - Optically-Trapped Interacting Fermi Gases

Optically-trapped, ultra-cold gases of spin ½-up and spin ½-down 6Li atoms enable “designer” interactions, offering a versatile environment for simulating exotic quantum…

From  Katie Gentilello 17 plays 0  

Daniel Arovas - Quantum Magnetism from the Iron Age to Today

The quantum theory of magnetism has provided many durable paradigms for quantum phases of matter, including intrinsically quantum disordered states, symmetry-protected topological phases, and quantum…

From  Katie Gentilello 7 plays 0  

Andrea J. Liu - How materials can learn to function

How does learning occur? In the context of neural networks, learning occurs via optimization, where a loss function is minimized to achieve the desired result. But physical networks such as…

From  Katie Gentilello 4 plays 0  

Ruth Murray-Clay - Origins of Structure in Inner Planetary System

Why do many stars host close-in chains of super-Earths? Why are eccentric gas giants found in some inner planetary systems? What determines which of these outcomes will occur around a particular…

From  Katie Gentilello 4 plays 0  

Michael P. Brenner - Machine Learning for Partial Differential Equations

When Newton's laws are applied in every point in space we arrive at a set of nonlinear partial differential equations describing the world. We often marvel at the complexity of the solutions,…

From  Katie Gentilello 37 plays 0  

Julia Yeomans - Self-propelled topological defects

Active materials such as bacteria, molecular motors and eukaryotic cells continuously transform chemical energy taken from their surroundings to mechanical work. Dense active matter shows mesoscale…

From  Katie Gentilello 17 plays 0  

Peter J. Hirschfeld - Superconductivity: There's Plenty of Cream at the Bottom

In 1961, Brian Pippard gave a speech at IBM called "The Cat and the Cream", in which he declared that the superconductivity field was finished, at least for "young innocents who wish…

From  Katie Gentilello 10 plays 0  

Andrew Zangwill - A Mind Over Matter: the Life and Science of Philip Anderson

Dr. Zangwill presents a biographical survey of the life and science of Nobel Laureate Philip W. Anderson, arguably the most productive and influential theoretical physicist of the second half of the…

From  Katie Gentilello 52 plays 0