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arXiv · 1603.00533

Efficient recycling strategies for preparing large Fock states from single-photon sources --- Applications to quantum metrology

Keith R. Motes·Ryan L. Mann·Jonathan P. Olson·Nicholas M. Studer·E. Annelise Bergeron·Alexei Gilchrist·Jonathan P. Dowling·Dominic W. Berry·Peter P. Rohde
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Abstract

Fock states are a fundamental resource for many quantum technologies such as quantum metrology. While much progress has been made in single-photon source technologies, preparing Fock states with large photon number remains challenging. We present and analyze a bootstrapped approach for non-deterministically preparing large photon-number Fock states by iteratively fusing smaller Fock states on a beamsplitter. We show that by employing state recycling we are able to exponentially improve the preparation rate over conventional schemes, allowing the efficient preparation of large Fock states. The scheme requires single-photon sources, beamsplitters, number-resolved photo-detectors, fast-feedforward, and an optical quantum memory.

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Keith R. Motes, Ryan L. Mann, Jonathan P. Olson, Nicholas M. Studer, E. Annelise Bergeron, Alexei Gilchrist, Jonathan P. Dowling, Dominic W. Berry, Peter P. Rohde. 2016-03-02. Efficient recycling strategies for preparing large Fock states from single-photon sources --- Applications to quantum metrology. https://doi.org/10.1103/physreva.94.012344

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