Engineering diamond quantum optical systems for quantum computing and simulations
Abstract
The goal of this proposal is to leverage the exceptional optical properties of the Silicon-Vacancy (SiV) color centers in diamond and to develop devices for quantum computing and simulation on diamond nanophotonic platform. We aim to expand on our diamond fabrication toolbox and produce a new generation of nano-structures capable of reaching high-level control over the phonon processes that currently restrict the spin coherence in SiV centers. This would represent a significant advance in the development of high-fidelity spinphoton interfaces. Furthermore, our plan is to develop photonic crystal cavities that host one or multiple SiV centers and could operate in the strong coupling regime. Due to the small inhomogeneous broadening in SiV centers, such devices would be excellent candidates for studies of many body interactions and implementations of new quantum simulation paradigms. The proposed program will include the following activities: - Design and fabrication of nanophotonic structures which can modify local phonon density of states or induce large strain, both of which could significantly improve the coherence time of a single embedded SiV; - Development of a full set of single qubit operations of SiV spins using all-optical pulses, which could improve the single qubit operation speed by three orders of magnitude; - Development of new fabrication methods that can enable high quality factor and small mode volume cavities in diamond; - Demonstration of strong coupling between a single SiV center and / or a few SiV centers and a nanophotonic cavity; - Study of applications of SiV center based cavity QED systems, including photon blockade, non-classical light generation, and quantum simulations.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 14, 2019
- Source ID
- W911NF1810062
Entities
People
- Jelena Vučković
Organizations
- Army Contracting Command
- Stanford University
- United States Army