Work

High-Bandwidth Hybrid Quantum Repeater

Year: 2008

Type: article

Abstract: We present a physical- and link-level design for the creation of entangled pairs to be used in quantum repeater applications where one can control the noise level of the initially distributed pairs. The system can tune dynamically, trading initial fidelity for success probability, from high fidelity pairs (F=0.98 or above) to moderate fidelity pairs. The same physical resources that create the long-distance entanglement are used to implement the local gates required for entanglement purification and swapping, creating a homogeneous repeater architecture. Optimizing the noise properties of the initially distributed pairs significantly improves the rate of generating long-distance Bell pairs. Finally, we discuss the performance trade-off between spatial and temporal resources.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.101.040502

Authors: W. J. Munro, R. Van Meter, Sebastien G. R. Louis, Kae Nemoto

Institutions: National Institute of Informatics, Hewlett-Packard (United Kingdom), Keio University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

Award: Qubus Quantum Computer