Percolation-based architecture for cluster state creation using photon-mediated entanglement between atomic memories
Name
s41534-019-0215-2.pdf
Description
Published version
Size
1.7 MB
Format
Adobe PDF
Checksum (MD5)
8953e1357191f7e2a21211c706874a44
Author(s)
Choi, Hyeongrak
Pant, Mihir
Englund, Dirk R.
Date Issued
November 2019
Journal
npj Quantum Information
Publisher
Springer Science and Business Media LLC
Citation
Choi, Hyeongrak et al. “Percolation-based architecture for cluster state creation using photon-mediated entanglement between atomic memories.” npj Quantum Information, 5, 1 (November 2019): 104 © 2019 The Author(s)
Version
Final published version
Abstract
A central challenge for many quantum technologies concerns the generation of large entangled states of individually addressable quantum memories. Here, we show that percolation theory allows the rapid generation of arbitrarily large graph states by heralding the entanglement in a lattice of atomic memories with single-photon detection. This approach greatly reduces the time required to produce large cluster states for quantum information processing including universal one-way quantum computing. This reduction puts our architecture in an operational regime where demonstrated coupling, collection, detection efficiencies, and coherence time are sufficient. The approach also dispenses the need for time-consuming feed-forward, high cooperativity interfaces and ancilla single photons, and can tolerate a high rate of site imperfections. We derive the minimum coherence time to scalably create large cluster states, as a function of photon-collection efficiency. We also propose a variant of the architecture with long-range connections, which is even more resilient to site yields. We analyze our architecture for nitrogen vacancy (NV) centers in diamond, but the approach applies to any atomic or atom-like systems.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/S41534-019-0215-2
