Bidirectional quantum teleportation of unknown photons using path-polarization intra-particle hybrid entanglement and controlled-unitary gates via cross-Kerr nonlinearity

Jino Heo, Chang Ho Hong, Jong In Lim, Hyung Jin Yang

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21 Citations (Scopus)


We propose an arbitrary controlled-unitary (CU) gate and a bidirectional quantum teleportation (BQTP) scheme. The proposed CU gate utilizes photonic qubits (photons) with cross-Kerr nonlinearities (XKNLs), X-homodyne detectors, and linear optical elements, and consists of the consecutive operation of a controlled-path (C-path) gate and a gathering-path (G-path) gate. It is almost deterministic and feasible with current technology when a strong coherent state and weak XKNLs are employed. Based on the CU gate, we present a BQTP scheme that simultaneously teleports two unknown photons between distant users by transmitting only one photon in a path-polarization intra-particle hybrid entangled state. Consequently, it is possible to experimentally implement BQTP with a certain success probability using the proposed CU gate.

Original languageEnglish
Article number050304
Pages (from-to)50304
Number of pages1
JournalChinese Physics B
Issue number5
Publication statusPublished - 2015 May 1



  • Bidirectional quantum teleportation
  • Cross-Kerr nonlinearity
  • Intra-particle hybrid entanglement

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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