Northwestern Events Calendar

May
23
2019

CMP Seminar: Professor Michael E. Flatté: New Materials for Quantum Coherent Electronic Technologies

When: Thursday, May 23, 2019
4:00 PM - 5:30 PM Central

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Cristian Pennington  

Group: Physics and Astronomy Condensed Matter Physics Seminars

Category: Academic

Description:

Electrons in most materials experience dramatic and frequent scattering from other electrons, phonons, and a variety of other excitations. Such scattering events often rapidly dissipate any memory the electron had of its quantum state, so the electrons can be described as an ensemble that is near local thermal equilibrium. If the electrons can retain a good memory of their quantum state, however, then they are quantum coherent and can be used for very unusual and exciting tasks such as quantum sensing or quantum computing. Realizing these quantum technologies has traditionally been expected to require very special elements such as superconducting devices or very high mobility transistors, as well as very low temperatures, in order to avoid the rapid loss of quantum coherence. Over the past fifteen years, however, remarkable examples of room-temperature quantum coherent behavior have been identified in condensed matter electronic systems, usually involving spin coherence. Predicting the behavior of these spin coherent systems requires integrating theoretical techniques to cope with energy scales ranging from far smaller than the thermal energy to far larger. I will describe some examples of relevant materials for quantum coherent technologies and identify some of the features they share.

Professor Michael E. Flatté, Dept. Physics and Astronomy, U. Iowa

Host: Nathaniel Stern

Keywords: Physics, Astronomy, Condensed Matter

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