| Original Articles |
|
|
|
|
Entanglement Concentration of Entangled Squeezed Vacuum States |
| CAI Xin-Hua1,2;KUANG Le-Man2 |
| 1Department of Physics, Changde Normal University,
Changde 415000
2Department of Physics, Hunan Normal University, Changsha 410081 |
|
| Cite this article: |
|
CAI Xin-Hua, KUANG Le-Man 2002 Chin. Phys. Lett. 19 1407-1409 |
|
|
|
|
Abstract By analysing the action of a beamsplitter on squeezed vacuum states (SVSs), it is found that, if the two input light beams of the beamsplitter have the same squeezing amplitude and phase, the output state is a two-mode SVS. If the two input light beams of the beam splitter have the same squeezing amplitude but a phase difference of π, the output state is a direct product state of two single-mode SVSs. Based on these results, we propose to distill maximally entangled SVS from partially entangled SVS via using 50/50 beam splitter and photodetectors.
|
| Keywords:
03.67.Hk
03.67.-a
03.65.Bz
|
|
|
Published: 01 October 2002
|
|
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
