1D and 2D Platforms for Topological Quantum Devices
| Date/Time: | Monday, 18 Nov 2019 from 4:10 pm to 5:00 pm |
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| Location: | Phys 0005 |
| Contact: | |
| Phone: | 515-294-5441 |
| Channel: | College of Liberal Arts and Sciences |
| Actions: | Download iCal/vCal | Email Reminder |
Abstract: Over the last few decades computing technologies have advanced at a seemingly unbridled pace. Most of these astounding innovations can be attributed to the smaller and smaller scale of computer building blocks, rather than any fundamental changes in the underlying physical phenomena at play. However, the ongoing miniaturization of conventional semiconductor circuits is rapidly approaching dimensions at which quantum phenomena will hinder control, reliability and overall performance, presenting an immediate challenge to further advances in computing powers. It is therefore of high importance to explore new paradigms, which embrace rather than shy away from quantum mechanics. This could impact not only classical computing, but also the rapidly-growing efforts to develop robust quantum computers. Yet quantum states are fragile and one of the main challenges is to realize states that are intrinsically robust to decoherence. In this context, topological states, such as Majorana modes, provide a qualitatively new approach to protect quantum information. In this talk, I will give an overview of our recent work exploring 1D and 2D materials platforms that are promising for realizing topological states in quantum devices.
Bio: Prof. Vlad Pribiag received his Ph.D. in 2010 from Cornell University, investigating the magnetization dynamics magnetic vortices driven by spin-transfer torques. He then moved to the Kavli Institute of Nanoscience Delft as postdoc, where he focused on quantum transport in low-dimensional materials with strong spin-orbit coupling, including single-spin dynamics in quantum dots and superconducting transport in 2D topological insulator devices. He joined the School of Physics and Astronomy at the University of Minnesota in 2014. His current work focuses on the physics of low-dimensional materials and devices, such as semiconductor nanowires, superconducting quantum wells, complex oxides and van der Waals materials. His awards include the McKnight Land-Grant Professorship (2019), Sloan Fellowship (2017), IUPAP Young Scientist Prize in Low Temperature Physics (2017), NSF CAREER Award (2016).