TY  - JOUR
A1  - Ostermeyer, Martin
A1  - Korn, Dietmar
A1  - Puhlmann, Dirk
A1  - Henkel, Carsten
A1  - Eisert, Jens
T1  - Two-dimensional characterization of spatially entangled photon pairs
N2  - We characterize the entanglement in position and momentum of photon pairs generated in type-II parametric down- conversion. Coincidence maps of the photon positions in the near-field and far-field planes are observed in two transverse dimensions using scanning fiber probes. We estimate the covariance matrix of an effective two-mode system and apply criteria for entanglement based on covariance matrices to certify space-momentum entanglement. The role of higher- order spatial modes for observing spatial entanglement between the two photons is discussed.
Y1  - 2009
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/31833
UR  - http://www.informaworld.com/openurl?genre=journal&issn=0950-0340
SN  - 0950-0340
ER  -