"Semiconductor nanocrystals for room-temperature quantum electronics: A flexible platform for manipulating spin coherence" "

Jesse Berezovsky

Case Western Reserve University

Future electronics will increasingly rely on the ability to exploit quantum phenomena of both electrons and photons in integrated devices. In recent years, there have been a number of proof-of-concept demonstrations of how such phenomena may be used for applications in the areas of spintronics and quantum information processing. But scalable, integrated, room-temperature devices present challenges that idealized proof-of-concept devices do not. This seminar will focus on recent progress in understanding coherent electron spin phenomena in semiconductor nanocrystals (NCs), and the potential therein for room-temperature ambient applications. The discovery of robust room-temperature spin coherence in NCs in the late 90s [J. Gupta et al., Phys. Rev. B 59, R10421 (1999)] opened the door to the exploration of coherent spin phenomena that exploit the full flexibility of chemically synthesized NC systems. These include electrical and chemical doping, enhancement of the spin/photon interaction via integrated optical cavities, and the use of core/shell heterostructures to tailor wavefunctions and their environment.