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Large Cross-Phase Modulation between Slow Co-propagating Weak Pulses in Rb

Zeng-Bin Wang·Karl-Peter Marzlin·Barry C. Sanders
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Abstract

We propose a scheme to generate double electromagnetically induced transparency and optimal cross-phase modulation for two slow, copropagating pulses with matched group velocities in a single species of atom, namely 87 Rb. A single pump laser is employed and a homogeneous magnetic field is utilized to avoid cancellation effects through the nonlinear Zeeman effect. We suggest a feasible preparational procedure for the atomic initial state to achieve matched group velocities for both signal fields.

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Zeng-Bin Wang, Karl-Peter Marzlin, Barry C. Sanders. 2006-08-21. Large Cross-Phase Modulation between Slow Co-propagating Weak Pulses in Rb. https://doi.org/10.1103/physrevlett.97.063901

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