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Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 74: Quantum Information: Quantum Communication III

Q 74.3: Vortrag

Freitag, 27. März 2015, 15:00–15:15, K/HS1

A two-color entangled photon pair source for interfacing dissimilar quantum systems — •Chris Müller, Thomas Kreissl, Tim Kroh, Otto Dietz, and Oliver Benson — AG Nanooptik, Humboldt-Universität zu Berlin

Entangled photon pairs can mediate entanglement between two distant quantum systems. This is crucial for quantum repeater applications [1], but also for the general purpose of establishing entanglement between dissimilar entities, i.e. for creating quantum hybrids. We set up a two-color, folded-sandwich [2], parametric down conversion source to create entangled photon pairs. This folded-sandwich-configuration is based on a purley geometrical principle, allowing for a broad tuneability of the source.

The photon pair source will be used to establish a hybrid quantum interface with the future goal to demonstrate teleportation [1] of an electronic state of a semiconductor quantum dot [3] to photons at telecom wavelength.

[1] Bussières F., et al. Nature Photonics 8, 775-778 (2014)

[2] Steinlechner F., et al. Optics Express 21, 11943 (2013)

[3] Gao W.B., et al. Nature Comm. 4, 2744 (2013)

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