Simultaneous Quantum Transmission and Teleportation of Unknown Photons Using Intra- and Inter-particle Entanglement Controlled-NOT Gates via Cross-Kerr Nonlinearity and P-Homodyne Measurements

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We propose an arbitrary controlled-unitary (CU) gate and a simultaneous quantum transmission and teleportation (SQTTP) scheme. The proposed CU gate utilizes photons with cross-Kerr nonlinearities (XKNLs), coherent superposition states (CSSs) and P-homodyne detectors 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 strong CSSs and weak XKNLs are employed. Compared with the existing multi-qubit or controlled gates, which utilize XKNLs, coherent states, and X-homodyne detectors, the proposed CU gate can increase the feasibility of experimental realization, and enhance the robustness against the decoherence effect. Based on the CU gate, we present a SQTTP scheme that simultaneously transmits and teleports two unknown states of photons between two parties (Alice and Bob) using path-polarization intra-particle hybrid entanglement (IRHE) by transferring only a single photon. Consequently, it is possible to experimentally implement SQTTP with a certain success probability using the proposed CU gate.

Original languageEnglish
Pages (from-to)2261-2277
Number of pages17
JournalInternational Journal of Theoretical Physics
Volume54
Issue number7
DOIs
Publication statusPublished - 2015 Jan 13

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Keywords

  • Cross-kerr nonlinearity
  • Inter-particle and intra-particle hybrid entanglement
  • P-homodyne measurement
  • Simultaneous quantum transmission and teleportation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Mathematics(all)

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