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Physics Colloquium

Date: Thursday, February 20, 2020

Speaker:  Ethan Minot, Oregon State University

Title: Electrons Dancing on a String

Abstract: Electrons confined to one-dimensional (1d) materials offer fascinating opportunities for applications and fundamental studies. Our group uses individually-contacted carbon nanotubes (CNTs) as a model experimental system to investigate these electrons dancing on strings. I will discuss application areas including sensors, quantum light sources, transistors, and photovoltaics. The unique features of CNTs enable sensors that detect single electrons, light-emitting


Ben Farr’s Work with LIGO Featured in Discover

For just the second time, scientists have used gravitational waves (ripples in space-time) to detect the merger of two colliding neutron stars. The neutron stars — each fitting roughly the mass of the Sun into a city-sized space — have a combined mass greater than any other pair of neutron stars ever observed.

“From conventional observations with light, we already knew of 17 binary neutron star systems in our own galaxy and we have estimated the masses of these stars,” said Ben Farr, a LIGO team member from the University of Oregon, in a press release. “What’s surprising is that


Jim Brau’s Work with the International Linear Collider Featured on Around the O

Learning more about the Higgs boson and finding dark matter are the driving forces for construction of the International Linear Collider, says University of Oregon physicist Jim Brau. Where it will be built may be known soon.

“The linear collider, Brau said, will turn research up a notch. At the Large Hadron Collider, scientists, including a large UO team, have been watching collisions of protons. That led to the discovery of the long-elusive Higgs boson.

Leaders in high-energy physics see this project as being a critical element to advance the science. “It will complement the Large Hadron