We propose an unambiguous signature for detecting quantum superposition states in a nanostructure, based on current ultrafast spectroscopy techniques. The reliable generation of such superposition states via Hadamard-like quantum gates is crucial for implementing solid-state based quantum information schemes. The signature originates from a remarkably strong photon antibunching effect which is enhanced by non-Markovian dynamics.
@article{arxiv.cond-mat/0203452,
title = {Ultrafast optical signature of quantum superpositions in a nanostructure},
author = {F. J. Rodriguez and L. Quiroga and N. F. Johnson},
journal= {arXiv preprint arXiv:cond-mat/0203452},
year = {2009}
}
Comments
4 pages, 2 figures. Published in Phys. Rev. B (Rapid Communications)