Two-dimensional characterization of spatially entangled photon pairs
- 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.
| Author details: | Martin Ostermeyer, Dietmar Korn, Dirk Puhlmann, Carsten HenkelORCiDGND, Jens Eisert |
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| URL: | http://www.informaworld.com/openurl?genre=journal&issn=0950-0340 |
| DOI: | https://doi.org/10.1080/09500340903359962 |
| ISSN: | 0950-0340 |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2009 |
| Publication year: | 2009 |
| Release date: | 2017/03/25 |
| Source: | Journal of modern optics. - ISSN 0950-0340. - 56 (2009), 17, S. 1829 - 1837 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
