Ultrafast optical signature of quantum superpositions in a nanostructure

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.

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

References in corpus (3)

• Triggered single photons from a quantum dot
• Robustness of Multi-Party Entanglement
• Semiconductor quantum dot - a quantum light source of multicolor photons with tunable statistics

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