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Phys. Rev. Lett. 99, 063901 (2007) [4 pages]

Anisotropically and High Entanglement of Biphoton States Generated in Spontaneous Parametric Down-Conversion

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M. V. Fedorov, M. A. Efremov, and P. A. Volkov
A. M. Prokhorov General Physics Institute of Russian Academy of Sciences, 117942, Moscow, Russia

E. V. Moreva*
Moscow Engineering Physics Institute (State University), 115409, Moscow, Russia

S. S. Straupe and S. P. Kulik
Faculty of Physics, Moscow State University, 119992, Moscow, Russia

Received 20 December 2006; published 6 August 2007

We show both theoretically and experimentally that biphoton wave packets generated via spontaneous parametric down-conversion can be strongly anisotropic and highly entangled. The conditions under which these effects exist are found and discussed.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.063901
DOI:
10.1103/PhysRevLett.99.063901
PACS:
42.65.Lm, 03.65.Ud, 03.67.Mn

*ekaterina.moreva@gmail.com