INQNET seminars

Entanglement of trapped-ion qubits separated by 230 meters

by Tracy Northup (Innsbruck)

269 (Lauritsen)




Note Special Day! Pizza seminar

Entanglement-based quantum networks hold out the promise of new capabilities for secure communication, distributed quantum computing, and interconnected quantum sensors. However, only a handful of elementary quantum networks have been realized to date. I will present results from our prototype network, in which two calcium ions are entangled with one another over a distance of 230 m, via a 520 m optical fiber channel linking two buildings. The ion-ion entanglement is based on ion-photon entanglement mediated by coherent Raman processes in optical cavities. I will discuss the advantages of trapped ions for quantum networks and the role that cavities can play as quantum interfaces between light and matter at network nodes. After examining the key metrics for remote entanglement, we will consider the necessary steps to extend this work to long-distance networks of entangled quantum processors.

INQNET Seminar

Scheduled: May 15, 2023 at 12:30 PM to 1:30 PM, PDT


Venkata R. (Raju) Valivarthi is inviting you to a scheduled Zoom meeting.


Topic: Venkata R. (Raju) Valivarthi's Zoom Meeting

Time: May 15, 2023 12:30 PM Pacific Time (US and Canada)


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Meeting ID: 288 966 8561

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Meeting ID: 288 966 8561

Organized by

Raju Valivarthi, Neil Sinclair