Format

Send to:

Choose Destination
See comment in PubMed Commons below
Phys Rev Lett. 2011 Sep 23;107(13):130501. Epub 2011 Sep 19.

Robustness of non-Gaussian entanglement against noisy amplifier and attenuator environments.

Author information

  • 1Optics & Quantum Information Group, The Institute of Mathematical Sciences, Tharamani, Chennai, India. kkumar@imsc.res.in

Abstract

The recently developed Kraus representation for bosonic Gaussian channels is employed to study analytically the robustness of non-Gaussian entanglement against evolution under noisy attenuator and amplifier environments, and compare it with the robustness of Gaussian entanglement. Our results show that some non-Gaussian states with one ebit of entanglement are more robust than all Gaussian states, even the ones with arbitrarily large entanglement, a conclusion of direct consequence to the recent conjecture by Allegra et al. [Phys. Rev. Lett. 105, 100503 (2010)].

PMID:
22026833
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Write to the Help Desk