98 citations · 142 across the 2 of their papers we have counts for
3 papers
Preparation and characterization of arbitrary states of four-dimensional qudits based on biphotons
So-Young Baek, Stanislav S. Straupe, Alexander P. Shurupov +2
We report interferometric schemes to prepare arbitrary states of four-dimensional qudits (ququarts) based on biphoton states of ultrafast-pumped frequency-nondegenerate spontaneous…
Anisotropically high entanglement of biphotons generated in spontaneous parametric down conversion
M. V. Fedorov, M. A. Efremov, P. A. Volkov +3
We show that the wave packet of a biphoton generated via spontaneous parametric down conversion is strongly anisotropic. Its anisotropic features manifest themselves very clearly i…
Realization of four-state qudits using biphotons
E. V. Moreva, G. A. Maslennikov, S. S. Straupe +1
The novel experimental realization of four-level optical quantum systems (ququarts) is presented. We exploit the polarization properties of frequency non-degenerate biphoton field…