Super sensitivity and super resolution with quantum teleportation

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Dokumenter

  • J. Borregaard
  • T. Gehring
  • J. S. Neergaard-Nielsen
  • U. L. Andersen

We propose a method for quantum enhanced phase estimation based on continuous variable (CV) quantum teleportation. The phase shift probed by a coherent state can be enhanced by repeatedly teleporting the state back to interact with the phase shift again using a supply of two-mode squeezed vacuum states. In this way a sequential protocol exhibiting both super-resolution and super-sensitivity can be obtained due to the coherent addition of the phase shift. The protocol enables Heisenberg-limited sensitivity and super-resolution given sufficiently strong squeezing. The proposed method could be implemented with current or near-term technology of CV teleportation.

OriginalsprogEngelsk
Artikelnummer16
Tidsskriftnpj Quantum Information
Vol/bind5
Udgave nummer1
Antal sider6
DOI
StatusUdgivet - 2019

Antal downloads er baseret på statistik fra Google Scholar og www.ku.dk


Ingen data tilgængelig

ID: 229101110