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Published March 24, 2017 | Version Published + Submitted + Supplemental Material
Journal Article Open

Unity-Efficiency Parametric Down-Conversion via Amplitude Amplification

Creators

  • 1. ROR icon Massachusetts Institute of Technology
  • 2. ROR icon University of Calgary
  • 3. ROR icon Canadian Institute for Advanced Research
  • 4. ROR icon Hefei National Center for Physical Sciences at Nanoscale
  • 5. ROR icon University of Science and Technology of China
  • 6. ROR icon California Institute of Technology

Abstract

We propose an optical scheme, employing optical parametric down-converters interlaced with nonlinear sign gates (NSGs), that completely converts an n-photon Fock-state pump to n signal-idler photon pairs when the down-converters' crystal lengths are chosen appropriately. The proof of this assertion relies on amplitude amplification, analogous to that employed in Grover search, applied to the full quantum dynamics of single-mode parametric down-conversion. When we require that all Grover iterations use the same crystal, and account for potential experimental limitations on crystal-length precision, our optimized conversion efficiencies reach unity for 1 ≤ n ≤ 5, after which they decrease monotonically for n values up to 50, which is the upper limit of our numerical dynamics evaluations. Nevertheless, our conversion efficiencies remain higher than those for a conventional (no NSGs) down-converter.

Additional Information

© 2017 American Physical Society. (Received 29 December 2016; published 23 March 2017) M. Y. N., F. N. C. W., and J. H. S. acknowledge support from Office of Naval Research Grant No. N00014-13-1-0774 and Air Force Office of Scientific Research Grant No. FA9550-14-1-0052. B. C. S. acknowledges funding provided by Natural Sciences and Engineering Research Council of Canada, Alberta Innovations, and by the Institute for Quantum Information and Matter, a National Science Foundation (NSF) Physics Frontiers Center (NSF Grant No. PHY-1125565) with support of the Gordon and Betty Moore Foundation (Grant No. GBMF-2644). M. Y. N. and B. C. S. also thank the Aspen Center for Physics for hosting the Quantum Algorithm Winter School.

Attached Files

Published - PhysRevLett.118.123601.pdf

Submitted - 1603.06857.pdf

Supplemental Material - UPDC_SupplementalMaterial_revised.pdf

Files

1603.06857.pdf

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Additional details

Identifiers

Eprint ID
75363
Resolver ID
CaltechAUTHORS:20170323-135327144

Related works

Describes
http://arxiv.org/abs/1603.06857 (URL)

Funding

Office of Naval Research (ONR)
N00014-13-1-0774
Air Force Office of Scientific Research (AFOSR)
FA9550-14-1-0052
Natural Sciences and Engineering Research Council of Canada (NSERC)
Alberta Innovations
Institute for Quantum Information and Matter (IQIM)
NSF
PHY-1125565
Gordon and Betty Moore Foundation
GBMF-2644

Dates

Created
2017-03-23
Created from EPrint's datestamp field
Updated
2021-11-15
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Institute for Quantum Information and Matter