Preparation of general single-ququart states using ultrafast spontaneous parametric down-conversion

Preparation of general single-ququart states using ultrafast spontaneous parametric down-conversion

We report an experiment on preparing general four-dimensional quantum states (ququart) using ultrafast-pumped frequency-nondegenerate spontaneous parametric down-conversion. All possible single-ququart states (mixed, pure, and intermediate states) can be prepared in our scheme.

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Bibliographische Detailangaben
Hauptverfasser: So-Young Baek, Straupe, S.S., Kulik, S.P., Yoon-Ho Kim
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Cryptography
Crystals
Frequency
Laser excitation
Optical retarders
Polarization
Pump lasers
Quantum entanglement
Quantum mechanics
Testing
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Beschreibung
Zusammenfassung:We report an experiment on preparing general four-dimensional quantum states (ququart) using ultrafast-pumped frequency-nondegenerate spontaneous parametric down-conversion. All possible single-ququart states (mixed, pure, and intermediate states) can be prepared in our scheme.
DOI:10.1109/CLEOPR.2007.4391559