We show theoretically that nearly indistinguishable photons can be generated with non-identical semiconductor-based sources. The use of virtual Raman transitions and the optimization of the external driving fields increases the tolerance to spectral inhomogeneity to the meV energy range. A trade-off emerges between photon indistinguishability and efficiency in the photon-generation process. Linear (quadratic) dependence of the coincidence probability within the Hong-Ou-Mandel setup is found with respect to the dephasing (relaxation) rate in the semiconductor sources.
@article{arxiv.0904.0146,
title = {Optimal generation of indistinguishable photons from non-identical artificial molecules},
author = {E. Cancellieri and F. Troiani and G. Goldoni},
journal= {arXiv preprint arXiv:0904.0146},
year = {2017}
}