D. A. Kalashnikov, V. P. Karassiov, S. P. Kulik, A. A. Solov'ev, G. O. Rytikov, “Generation of entangled states in polydomain potassium-dihydrophosphate crystals”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2008, Volume 87, Issue 1,Pages <nobr>66

This article is cited in 6 papers

CONDENSED MATTER

Generation of entangled states in polydomain potassium-dihydrophosphate crystals

D. A. Kalashnikov^a, V. P. Karassiov^b, S. P. Kulik^c, A. A. Solov'ev^c, G. O. Rytikov^d

^a Zavoiskii Physicotechnical Institute, Kazan Scientific Center, Russian Academy of Sciences, Sibirskii trakt 10/7, Kazan 29, 420029, Russia
^b Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119992, Russia
^c Faculty of Physics, Moscow State University, Moscow, 119992, Russia
^d Moscow State University of Press, Moscow, 127550, Russia

Abstract: It is shown experimentally that polarized entangled two-photon states in a pair of frequency modes can appear in the process of the spontaneous parametric down conversion in ferroelectric crystals with a quasi-regular domain structure (such as potassium dihydrophosphate). Entanglement measures and polarization characteristics of these states are determined.

PACS: 03.65.Wj, 03.67.Mn, 77.80.Dj

Received: 27.11.2007