Physics Colloquium

Date
Tue, May 4, 2021 4:00 pm - 5:00 pm

Description

RECORDING LINK
https://umd.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=4b6f1646-608e-41ef-bc2a-ad1e016ec875

Join Zoom Meeting
https://umd.zoom.us/j/99484232905?pwd=SjZ1dFRDVG1ObTY2MDEzYjdMY2o1UT09


Meeting ID: 994 8423 2905
Passcode: 942935

Speaker: Sergey Frolov, University of Pittsburgh

Title: How do we discover Majorana particles in nanowires?

Abstract: Majorana particles are real solutions of the Dirac equation, representing their own antiparticles. In the condensed matter context, Majorana refers to electronic modes in nanostructures described by peculiar ‘pulled-apart’ wavefunctions and by hypothesized non-Abelian exchange. This last property makes them interesting for quantum computing. I will present our efforts to generate and verify Majorana modes in semiconductor nanowires coupled to superconductors. In particular, how can we tell Majorana signatures apart from similar Andreev states that do not have non-Abelian properties? While we may not have a verified Majorana observation now, I will talk about ways to get there: through careful experiments, improved nanowires and device fabrication and with eyes open for alternative explanations.

Host: Vladimir Manucharyan

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