Condensed Matter Physics Seminar

David Reilly
Harvard University

Monday, April 21, 2008
1:30 pm in Jadwin Hall, Room A09

The nuclear environment of a single electron spin

Abstract: What makes an object exhibit quantum, rather than classical, behavior? Prolonging quantum coherence is a critical technological goal in the development of devices that can process quantum information. Electron spins, isolated inside quantum dots, are an ideal platform for exploring how the environment determines the lifetime of coherent quantum states. The focus of this talk will be new experimental work that examines the dynamic nuclear environment of a single electron spin-state in a double quantum dot. Results will be presented that demonstrate a suppression of spin qubit dephasing via nuclear state preparation.