Coherent control of collective atom phase for ultralong, inversion-free photon echoes

  • Ham B
  • 21


    Mendeley users who have this article in their library.
  • 6


    Citations of this article.


To overcome the fundamental limitations of the p optical pulse-induced
population inversion and optical decay-caused short storage time
in conventional photon echoes, a coherent control of collective atoms
is studied for inversion-free, optical decay-halted photon echoes,
where the constraint of photon storage time is now replaced by a
spin population decay process. Using phase-controlled double rephasing,
an inversion-free photon echo scheme is obtained, where no spontaneous
or stimulated emission-driven quantum noise exists. Thus, the present
method can be applied for ultralong quantum memories in quantum repeaters
for long-distance quantum communications.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Byoung S. Ham

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free