Self-stabilized quantum optical Fredkin gate

Jonathan Hu, Yu Ping Huang, Prem Kumar

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The quantum optical Fredkin gate is an indispensable resource for networkable quantum applications. Its performance in practical implementations, however, is limited fundamentally by the inherent quantum fluctuations of the pump waves. We demonstrate a method to overcome this drawback by exploiting stimulated Raman scattering in fiber-based implementations. Using a Sagnac fiber-loop switch as a specific example, we show that high switching contrast can be maintained even in the presence of significant pump fluctuations. This unique feature of selfstabilization, together with high-speed and low-loss performance of such devices, point to a viable technology for practical quantum communications.

Original languageEnglish
Pages (from-to)522-524
Number of pages3
JournalOptics Letters
Volume38
Issue number4
DOIs
StatePublished - 15 Feb 2013

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