When:
Friday, November 21, 2025
4:00 PM - 5:00 PM CT
Where: Technological Institute, L211, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Post Docs/Docs - Graduate Students
Contact:
Joan West
(847) 491-3645
joan.west@northwestern.edu
Group: Physics and Astronomy Colloquia
Category: Academic
The 2025 Nobel Prize in Physics was awarded to John Clarke, John Martinis and Michel Devoret “for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.” In this talk, I will review the classical and quantum dynamics of a Josephson junction, the basic device behind the experiments of Clarke, Martinis and Devoret, and discuss some of the issues involved in making measurements on such devices at millikelvin temperatures, focusing in particular on the effects of noise on the experimental results.
Venkat Chandrasekhar, Professor, Northwestern University
Host: John J. Carrasco