Colloquium Schedule

Colloquium: Thursday, December 2, 4:25 PM v

“Matter-Wave Circuits of Ultracold Fermions”, by Prof. Kevin Wright from the Department of Physics and Astronomy, Dartmouth College

The fundamentally quantum mechanical nature of physical law is not obvious in most large systems, however, there are some materials whose macroscopic properties are dominated by collective quantum effects. Superfluidity and superconductivity are the best-known examples of this "macroscopic quantum" behavior. After eighty years of work on these problems there have been some amazing breakthroughs but predicting the nature (and even existence) of macroscopic quantum phases of matter is still a notoriously difficult problem. Ultra-cold atomic gases are becoming an important tool for exploring these phenomena, with the development of "atom circuits" that can be used to study quantum phases of matter with an unprecedented degree of control. After an overview of key results from work with weakly interacting bosonic atoms, I will present results of groundbreaking new experiments with circuits of fermionic atoms where we show the ability to create persistent currents and measure the critical interaction strength at which they decay. These capabilities provide an exciting new means for studying systems of interacting fermions in regimes and geometries previously inaccessible to experiments, in which unusual quantum phases with interesting transport properties are predicted to exist.

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Physics and Astronomy Colloquia are usually scheduled for Thursdays at 4:25 PM in Room 316 Lewis Lab.  For Zoom participation, please see below:

Meeting ID: 972 1274 7894
Passcode: 631869

Physics Colloquium Schedule for Fall 2021

Click on Title below for past or upcoming Announcements (where available), and Speaker name for website.        

Date Speaker Affiliation Title
August 26 Damien Thevenin Lehigh University From Membrane Protein Biophysics to Selective Tumor Targeting 
September 2 Brandon Mitchell West Chester University

Development of Semiconductor-based Intra-center Photonics for Micro-Display and Quantum Computing Applications

September 7 Michael Lisa Ohio State University Subatomic Swirls: Ultra-relativistic Nuclear Collisions and Nature's Most Vortical Fluid
September 16 Edward Lyman University of Delaware You are what you eat, and there are biophysical consequences
September 23 Liam McAllister Cornell University The Cosmological Constant and the Quantization of Parameters
September 30 Jean-Baptiste Salmon LOF Laboratory, France Microfluidic measurements of collective diffusion in complex fluids : drying, ultrafiltration, and pervaporation
October 7 Lam Hui Columbia University Wave dark matter
October 14 Bonggu Shim State University of New York How can we visualize nonlinear interactions of ultrashort high-intensity laser pulses with matter?
October 21 Pratibha Dev Howard University Materials Properties from Quantum Mechanical Principles
October 28 Timm Wrase Lehigh University α-attractor models of inflation
November 4 Fakher Assaad University of Wurzburg Numerical simulations of Dirac systems
November 11 Mike Shelley Flatiron Institute Active Matter and Transport in Living Cells
November 18 Barbara Jacak UC Berkeley  Exploring QCD Matter
November 25 Thanksgiving Break - -
December 2 Kevin Wright Dartmouth College Matter-Wave Circuits of Ultracold Fermions