期刊
PHYSICAL REVIEW A
卷 83, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.83.060302
关键词
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资金
- Ministry of Education and Science of the Russian Federation [02.740.11.0223]
- RFBR [10-02-00204, 11-02-90710_mob_st, 10-02-90036_Bel]
- Dynasty Foundation
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.
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