Continuous variable entanglement swapping

Citation
Res. Polkinghorne et Tc. Ralph, Continuous variable entanglement swapping, PHYS REV L, 83(11), 1999, pp. 2095-2099
Citations number
11
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
83
Issue
11
Year of publication
1999
Pages
2095 - 2099
Database
ISI
SICI code
0031-9007(19990913)83:11<2095:CVES>2.0.ZU;2-K
Abstract
We investigate the efficacy with which polarization entanglement can be tel eported using a continuous measurement scheme. We show that by using the co rrect gain for the classical channel the degree of violation of locality th at can be demonstrated (using a CH-type inequality) is not a function of th e level of entanglement squeezing used in the teleportation. This is possib le because a gain condition can always be chosen such that passage through the teleporter is equivalent to pure attenuation of the input field.