Distilling quantum entanglement via mode-matched filtering

Yu Ping Huang*, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We propose an avenue toward distillation of quantum entanglement that is implemented by directly passing the entangled qubits through a mode-matched filter. This approach can be applied to a common class of entanglement impurities appearing in photonic systems, where the impurities inherently occupy different spatiotemporal modes than the entangled qubits. As a specific application, we show that our method can be used to significantly purify the telecom-band entanglement generated via the Kerr nonlinearity in single-mode fibers where a substantial amount of Raman-scattering noise is concomitantly produced.

Original languageEnglish (US)
Article number032315
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - Sep 13 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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