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Towards high‐fidelity two‐photon quantum communications
Author(s) -
Kurizki G.,
Petrosyan D.
Publication year - 2003
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200310054
Subject(s) - electromagnetically induced transparency , physics , photon , fidelity , nonlinear system , high fidelity , modulation (music) , quantum , quantum mechanics , optics , telecommunications , computer science , acoustics
We propose two alternative scheme for highly efficient nonlinear interaction between weak optical fields. The first scheme is based on the attainment of electromagnetically induced transparency simultaneously for two fields via transitions between magnetically split F = 1 atomic sublevels, in the presence of two driving fields. The second scheme relies on simultaneous electromagnetically‐ and self‐induced transparencies of the two fields. Thereby, equal slow group velocities and giant cross‐phase modulation of the weak fields over long distances are achieved.