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Ultrafast optical signature of quantum superpositions in a nanostructure

F. J. Rodriguez·L. Quiroga·N. F. Johnson
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Abstract

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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F. J. Rodriguez, L. Quiroga, N. F. Johnson. 2002-10-09. Ultrafast optical signature of quantum superpositions in a nanostructure. https://doi.org/10.1103/physrevb.66.161302

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