Demonstration of deterministic and high fidelity squeezing of quantum information

J-I. Yoshikawa, T- Hayashi, T. Akiyama, N. Takei, Alexander Huck, Ulrik Lund Andersen, A. Furusawa

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Abstract

By employing a recent proposal [R. Filip, P. Marek, and U.L. Andersen, Phys. Rev. A 71, 042308 (2005)] we experimentally demonstrate a universal, deterministic, and high-fidelity squeezing transformation of an optical field. It relies only on linear optics, homodyne detection, feedforward, and an ancillary squeezed vacuum state, thus direct interaction between a strong pump and the quantum state is circumvented. We demonstrate three different squeezing levels for a coherent state input. This scheme is highly suitable for the fault-tolerant squeezing transformation in a continuous variable quantum computer.
Original languageEnglish
JournalPhysical Review A
Volume76
Issue number6
Pages (from-to)060301
ISSN2469-9926
DOIs
Publication statusPublished - 2007

Bibliographical note

Copyright 2007 American Physical Society

Keywords

  • TELEPORTATION
  • COMPUTATION
  • VARIABLES

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