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Distributed Quantum Computing with Photons and Atomic Memories

Journal Article · · Advanced Quantum Technologies
 [1];  [2];  [3];  [2]
  1. JTEC Consulting, Decatur, GA (United States); University of Texas at Dallas
  2. Univ. of Texas at Dallas, Richardson, TX (United States)
  3. Kennesaw State Univ., Marietta, GA (United States)
The promise of universal quantum computing requires scalable single- and inter-qubit control interactions. Currently, three of the leading candidate platforms for quantum computing are based on superconducting circuits, trapped ions, and neutral atom arrays. However, these systems have strong interaction with environmental and control noises that introduce decoherence of qubit states and gate operations. Alternatively, photons are well decoupled from the environment and have advantages of speed and timing for quantum computing. Photonic systems have already demonstrated capability for solving specific intractable problems like Boson sampling, but face challenges for practically scalable universal quantum computing solutions because it is extremely difficult for a single photon to “talk” to another deterministically. Here, a universal distributed quantum computing scheme based on photons and atomic-ensemble-based quantum memories is proposed. Taking the established photonic advantages, two-qubit nonlinear interaction is mediated by converting photonic qubits into quantum memory states and employing Rydberg blockade for the controlled gate operation. Spatial and temporal scalability of this scheme is demonstrated further. Furthermore, these results show photon-atom network hybrid approach can be a potential solution to universal distributed quantum computing.
Research Organization:
Univ. of Texas at Dallas, Richardson, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
SC0022069
OSTI ID:
1972352
Alternate ID(s):
OSTI ID: 3000271
Report Number(s):
DOE-DE--SC0022069-QuantumNetwork
Journal Information:
Advanced Quantum Technologies, Journal Name: Advanced Quantum Technologies Journal Issue: 6 Vol. 6; ISSN 2511-9044
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (9)


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