Temporal shaping of entangled photons
Quantum Physics
2011-12-06 v2 Atomic Physics
Classical Physics
Optics
Abstract
We experimentally demonstrate shaping of the two-photon wavefunction of entangled photon-pairs, utilizing coherent pulse-shaping techniques. By performing spectral-phase manipulations we tailor the two-photon wavefunction exactly like a coherent ultrashort pulse. To observe the shaping we perform sum-frequency generation (SFG) with an ultrahigh flux of entangled photons. At the appropriate conditions, SFG performs as a coincidence detector with an ultrashort response time (~100 fs), enabling a direct observation of the two-photon wavefunction. This property also enables us to demonstrate background-free, high-visibility two-photon interference oscillations.
Cite
@article{arxiv.quant-ph/0411146,
title = {Temporal shaping of entangled photons},
author = {Avi pe'er and Barak Dayan and Asher A. Friesem and Yaron Silberberg},
journal= {arXiv preprint arXiv:quant-ph/0411146},
year = {2011}
}
Comments
5 pages, 3 figures, Accepted to Phys. Rev. Lett