TY - JOUR
T1 - Nonclassical photon streams using rephased amplified spontaneous emission
AU - Ledingham, Patrick M.
AU - Naylor, William R.
AU - Longdell, Jevon J.
AU - Beavan, Sarah E.
AU - Sellars, Matthew J.
PY - 2010/1/4
Y1 - 2010/1/4
N2 - We present a fully quantum mechanical treatment of optically rephased photon echoes. These echoes exhibit noise due to amplified spontaneous emission; however, this noise can be seen as a consequence of the entanglement between the atoms and the output light. With a rephasing pulse one can get an "echo" of the amplified spontaneous emission, leading to light with nonclassical correlations at points separated in time, which is of interest in the context of building wide bandwith quantum repeaters. We also suggest a wideband version of DLCZ protocol based on the same ideas.
AB - We present a fully quantum mechanical treatment of optically rephased photon echoes. These echoes exhibit noise due to amplified spontaneous emission; however, this noise can be seen as a consequence of the entanglement between the atoms and the output light. With a rephasing pulse one can get an "echo" of the amplified spontaneous emission, leading to light with nonclassical correlations at points separated in time, which is of interest in the context of building wide bandwith quantum repeaters. We also suggest a wideband version of DLCZ protocol based on the same ideas.
UR - http://www.scopus.com/inward/record.url?scp=73549122731&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.81.012301
DO - 10.1103/PhysRevA.81.012301
M3 - Article
SN - 1050-2947
VL - 81
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 1
M1 - 012301
ER -