Spectroscopy by frequency entangled photon pairs
Quantum Physics
2009-11-10 v4
Abstract
Quantum spectroscopy was performed using the frequency-entangled broadband photon pairs generated by spontaneous parametric down-conversion. An absorptive sample was placed in front of the idler photon detector, and the frequency of signal photons was resolved by a diffraction grating. The absorption spectrum of the sample was measured by counting the coincidences, and the result is in agreement with the one measured by a conventional spectrophotometer with a classical light source.
Cite
@article{arxiv.quant-ph/0306154,
title = {Spectroscopy by frequency entangled photon pairs},
author = {Atsushi Yabushita and Takayoshi Kobayashi},
journal= {arXiv preprint arXiv:quant-ph/0306154},
year = {2009}
}
Comments
11 pages, 5 figures, to be published in Phys. Lett. A