Europhys. Lett.
Volume 68, Number 5, December 2004
Page(s) 625 - 631
Section General
Published online 05 November 2004
Europhys. Lett., 68 (5), pp. 625-631 (2004)
DOI: 10.1209/epl/i2004-10260-0

Giant nonlinearity and entanglement of single photons in photonic bandgap structures

I. Friedler1, G. Kurizki1 and D. Petrosyan2

1  Department of Chemical Physics, Weizmann Institute of Science Rehovot 76100, Israel
2  Institute of Electronic Structure & Laser, FORTH - Heraklion 71110, Crete, Greece

received 29 June 2004; accepted in final form 1 October 2004
published online 5 November 2004

Giantly enhanced cross-phase modulation with suppressed spectral broadening is predicted between optically induced dark-state polaritons whose propagation is strongly affected by photonic bandgaps of spatially periodic media with multilevel dopants. This mechanism is shown to be capable of fully entangling two single-photon pulses with high fidelity.

03.67.-a - Quantum information.
42.70.Qs - Photonic bandgap materials.
42.50.Gy - Effects of atomic coherence on propagation, absorption, and amplification of light; electromagnetically induced transparency and absorption.

© EDP Sciences 2004