Photon correlations in positron annihilation
Quantum Physics
2014-11-21 v1
Abstract
The two-photon positron annihilation density matrix is found to separate into a diagonal center of energy factor implying maximally entangled momenta, and a relative factor describing decay. For unknown positron injection time, the distribution of the difference in photon arrival times is a double exponential at the para-Ps decay rate, consistent with experiment (V. D. Irby, Meas. Sci. Technol. 15, 1799 (2004)).
Cite
@article{arxiv.1006.0665,
title = {Photon correlations in positron annihilation},
author = {Isabelle Gauthier and Margaret Hawton},
journal= {arXiv preprint arXiv:1006.0665},
year = {2014}
}
Comments
Accepted for publication in Phys. Rev. A