OPTICALLY ACTIVE SEMICONDUCTOR SPIN QUBITS WITH LONG COHERENCE TIMES USING SINGLE DONOR IMPURITIES IN ZNSE
Abstract
Scalable quantum technology requires solid-state qubits that possess long coherence times and also strongly interact with light. Single donor impurities in ZnSe can satisfy both requirements. They exhibit strong single photon emission through donor-bound exciton states with fast radiatively limited lifetimes. They also naturally possess a donor electron spin that can act as an optically active qubit in a potentially nuclear-spin free environment, enabling long coherence times. But many of the fundamental spin and optical properties of this material system are still poorly understood. Furthermore, the integration of these optically active qubits with nanophotonics, which is essential for efficient light-matter interfaces, has yet to be realized. In this program we will combine advanced MBE growth with spectroscopy and nanophotonic engineering to develop optically active spin qubits using donor impurities in ZnSe, and couple them to light.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010250
Entities
People
- Edo Waks
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Maryland