Ultrafast optical signature of quantum superpositions in a nanostructure

Details Ultrafast optical signature of quantum superpositions in a nanostructure Ultrafast optical signature of quantum superpositions in a nanostructure

2002-03-22

arxiv.org/abs/cond-mat/0203452v3

Phys. Rev. B (RC) 66, 161302 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures. Published in Phys. Rev. B (Rapid Communications)

Scientific paper

10.1103/PhysRevB.66.161302

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.

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