Nonlinear Optics and Quantum Entanglement of Ultraslow Single Photons

M. D. Lukin; A. Imamoğlu

doi:10.1103/PhysRevLett.84.1419

Nonlinear Optics and Quantum Entanglement of Ultraslow Single Photons

M. D. Lukin and A. Imamoğlu

Phys. Rev. Lett. 84, 1419 – Published 14 February 2000

Abstract

Two light pulses propagating with slow group velocities in a coherently prepared atomic gas exhibit dissipation-free nonlinear coupling of an unprecedented strength. This enables a single-photon pulse to coherently control or manipulate the quantum state of the other. Processes of this kind result in generation of entangled states of radiation field and open up new prospectives for quantum information processing.

Received 19 October 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.1419

Authors & Affiliations

M. D. Lukin¹ and A. Imamoğlu²

¹ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138
²Department of Electrical and Computer Engineering, and Department of Physics, University of California, Santa Barbara, California 93106