TY - GEN
T1 - Reliability of the beamsplitter based Bell-state measurement
AU - Kim, Yoon Ho
AU - Grice, Warren P.
PY - 2005
Y1 - 2005
N2 - A linear 50/50 beamsplitter, together with a coincidence measurement, has been widely used in quantum optical experiments, such as teleportation, dense coding, etc., for interferometrically distinguishing, measuring, or projecting onto one of the four two-photon polarization Bell-states ψ (-)i. In this paper, we demonstrate that the coincidence measurement at the output of a beamsplitter cannot be used as an absolute identifier of the input state ψ (-)i nor as an indication that the input photons have projected to the ψ (-)i state.
AB - A linear 50/50 beamsplitter, together with a coincidence measurement, has been widely used in quantum optical experiments, such as teleportation, dense coding, etc., for interferometrically distinguishing, measuring, or projecting onto one of the four two-photon polarization Bell-states ψ (-)i. In this paper, we demonstrate that the coincidence measurement at the output of a beamsplitter cannot be used as an absolute identifier of the input state ψ (-)i nor as an indication that the input photons have projected to the ψ (-)i state.
UR - http://www.scopus.com/inward/record.url?scp=84899152445&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84899152445
SN - 1557527709
SN - 9781557527707
T3 - Optics InfoBase Conference Papers
BT - Conference on Lasers and Electro-Optics, CLEO 2005
PB - Optical Society of America
T2 - Conference on Lasers and Electro-Optics, CLEO 2005
Y2 - 22 May 2005 through 22 May 2005
ER -