Quantum Network Nodes Based on Atomic Qubits with a Nanophotonic Telecom Interface
Abstract
Scaling well controlled quantum systems is at the frontier of quantum science and technology. For quantum information processing, increasing the number of qubits will enable computational capabilities unmatched by classical technologies. It is an outstanding challenge to reach such numbers in a single processor architecture. A promising alternative is a distributed architecture in which well controlled processing nodes are connected via photonic channels to form a computational network. For long-distance optical channels this architecture forms a quantum network which enables fundamentally new applications such as distributed sensing networks, an entangled clock network, blind quantum computation and secure communication. For these applications quantum processing nodes with long coherence times, efficient light-matter interfaces, and low loss optical channels are highly desirable. In this STIR initiative we propose a processing node that combines the excellent coherence properties of single atoms with a nanophotonic interface that operates at telecom wavelengths where losses in optical channels are minimal. Towards the realization of this network node we will establish a realistic protocol that enables the creation of an atom-telecom-photon entangled state, fabricate and optimize telecom photonic crystal cavities, and develop a photonic chip that combines device parallelization with optimal single atom control.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 09, 2020
- Source ID
- W911NF2010058
Entities
People
- Hannes Bernien
Organizations
- Army Contracting Command
- United States Army
- University of Chicago