Symmetric photon-photon coupling by atoms with Zeeman-split sublevels

David Petrosyan and Gershon Kurizki
Phys. Rev. A 65, 033833 – Published 1 March 2002
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Abstract

We propose a simple scheme for highly efficient nonlinear interaction between two weak optical fields. The scheme is based on the attainment of electromagnetically induced transparency simultaneously for both fields via transitions between magnetically split F=1 atomic sublevels, in the presence of two driving fields. Thereby, equal slow group velocities and symmetric cross coupling of the weak fields over long distances are achieved. By simply tuning the fields, this scheme can either yield giant cross-phase modulation or ultrasensitive two-photon switching.

  • Received 11 May 2001

DOI:https://doi.org/10.1103/PhysRevA.65.033833

©2002 American Physical Society

Authors & Affiliations

David Petrosyan and Gershon Kurizki*

  • Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel

  • *URL: http://www.weizmann.ac.il/chemphys/gershon/; electronic address: gershon.kurizki@weizmann.ac.il

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Vol. 65, Iss. 3 — March 2002

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