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Memory-enhanced noiseless cross-phase modulation

Light: Science and Applications, ISSN: 2047-7538, Vol: 1, Issue: DECEMBER, Page: e40-e40
2012
  • 36
    Citations
  • 0
    Usage
  • 47
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    36
    • Citation Indexes
      36
  • Captures
    47

Article Description

Large nonlinearity at the single-photon level can pave the way for the implementation of universal quantum gates. However, realizing large and noiseless nonlinearity at such low light levels has been a great challenge for scientists in the past decade. Here, we propose a scheme that enables substantial nonlinear interaction between two light fields that are both stored in an atomic memory. Semiclassical and quantum simulations demonstrate the feasibility of achieving large cross-phase modulation (XPM) down to the single-photon level. The proposed scheme can be used to implement parity gates from which CNOT gates can be constructed. Furthermore, we present a proof of principle experimental demonstration of XPM between two optical pulses: one stored and one freely propagating through the memory medium. © 2012 CIOMP. All rights reserved.

Bibliographic Details

Mahdi Hosseini; Stojan Rebić; Ben M. Sparkes; Ben C. Buchler; Ping K. Lam; Jason Twamley

Springer Science and Business Media LLC

Materials Science; Physics and Astronomy

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