Angular Schmidt modes in spontaneous parametric down-conversion

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.060302· OSTI ID:21550011

Straupe, S S; Ivanov, D P; Kalinkin, A A; Bobrov, I B; Kulik, S P ^[1]

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1. Faculty of Physics, M. V. Lomonosov Moscow State University, 199001, Moscow (Russian Federation)

We report a proof-of-principle experiment demonstrating that appropriately chosen set of Hermite-Gaussian modes constitutes a Schmidt decomposition for transverse momentum states of biphotons generated in the process of spontaneous parametric down-conversion. We experimentally realize projective measurements in the Schmidt basis and observe correlations between appropriate pairs of modes. We perform tomographical state reconstruction in the Schmidt basis, by direct measurement of single-photon density matrix eigenvalues.

• OSTI ID: 21550011
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
97 MATHEMATICS AND COMPUTING
BOSONS
CORRELATIONS
DENSITY MATRIX
EIGENVALUES
ELEMENTARY PARTICLES
LINEAR MOMENTUM
MASSLESS PARTICLES
MATRICES
PARAMETRIC ANALYSIS
PHOTONS
SCHMIDT MODEL
TRANSVERSE MOMENTUM