An Integrated Programmable Source of Photonic Graph States
Abstract
Photonic graph states are crucial quantum resources for quantum communication, quantum networks, and optical quantum computing. Currently, the generation of photonic graph states primarily relies on the probabilistic fusion of single photons, which leads to significant resource overhead. Consequently, the size and generation rate achieved with present technologies fall significantly short of practical utility. In this program, we will develop a deterministic source of photonic graph states by employing a single Quantum Dot (QD) coupled to a nanophotonic cavity, and demonstrate efficient photonic interface between this source with both optical fibers and programmable integrated photonics. Our research will showcase a fiber-integrated source of photonic Greenberger-Horne-Zeilinger (GHZ) states containing up to 10 photons, with a three-photon detection rate exceeding 100 kHz, three orders of magnitude greater than the current state-of-the-art. Additionally, we will, for the first time, demonstrate the deterministic generation of two-dimensional photonic graph states, enabled by the efficient integration of the quantum light source with programmable integrated photonics. The outcomes of our research will be pivotal in advancing the development of one-way quantum repeaters and high-bandwidth quantum networks. These networks will connect quantum nodes of various types to form more powerful distributed quantum information systems, with applications spanning modular quantum computing, blind quantum computing, secure sharing, clock synchronization, and entanglement-enhanced metrology.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 05, 2025
- Source ID
- FA23862414067
Entities
People
- Shuo Sun
Organizations
- Air Force Office of Scientific Research
- Regents of the University of Colorado
- United States Air Force