Optically networked semiconductor spin qubits via liquid crystal mediated ordering
Abstract
Optically networked semiconductor spin qubits via liquid crystal mediated orderingExecutive SummaryQuantum information processing systems are becoming both more mature and, at the same time, more critical to national security applications. Quantum annealing systems such as D-wave and Google???s report of achieving quantum supremacy with a 49-qubit device have shown that solid state architectures are viable candidates for quantum processors [1]. However, the ability to couple the solid state qubit directly to a photon is a critical next step to enable true quantum networks along the optical fiber network.Building upon the progress made in previous ONR funded research [2-4], we propose pushing farther toward the realization of a hybrid linear spin register via optically active defects in nanodiamond. Our proposal is to couple the quantum information encoded in single defect spins in nanodiamond to a tapered optical fiber output coupler in a novel coupling of soft-matter and solid state physics. Building on work done to demonstrate liquid-crystal mediated self-assembly of nanodiamonds and the development of a novel high finesse tapered optical fiber optical cavity, the experimental basis of this project aims to progress the state of the art in single spin quantum information processing architectures. The infrastructure to fabricate and analyze the hybrid liquid crystal and solid statearchitecture has already been established at USNA. The novel tapered optical fiber and ring resonator system was invented at UMBC (patent pending). At the same we will develop the software architecture in lock step with the physics, providing a ???full stack??? solution to the optical quantum architecture we propose. Specifically, the algorithmic toolbox to apply quantum algorithms based on spin networks will be assessed when applied to data sets amenable to machine learning. In all of these phases of research, undergraduates and graduate students will play an integral part in all three teams. We anticipate quarterly meetings of the three groups to share progress as well as conference presentations and publications as major results are achieved.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 10, 2018
- Source ID
- N000141812462
Entities
People
- Nirmalya Roy
Organizations
- Office of Naval Research
- United States Navy
- University of Maryland, Baltimore