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Add to Calendar 2/21/2018 1:00 pm 2/21/2018 America/Chicago QI/AMO Seminar - "Trapped-ion interfaces for quantum networks" DESCRIPTION:

By coupling trapped ions to the mode of an optical resonator, we can construct a coherent interface between single ions and single photons.  I will discuss two applications of such an interface.  First, an ion can be used a non-destructive probe of the light field in the resonator; Ramsey spectroscopy of the ion enables us to reconstruct the photon number distribution interacting with the ion.  Second, quantum information can be transferred from ions onto photons for distribution across a quantum network.  Probabilistic and deterministic realizations of a network interface will be introduced, based on the building blocks of ion-photon entanglement and ion-photon state transfer.  These experiments face significant challenges on the road to a scalable multi-node network, such as decoherence of the ion and losses in photonic channels.  I will outline current approaches to address these challenges.

\n\nSPEAKER:

Tracy Northup, University of Innsbruck

276 LLP

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QI/AMO Seminar - "Trapped-ion interfaces for quantum networks"

Speaker Tracy Northup, University of Innsbruck
Date: 2/21/2018
Time: 1 p.m.
Location:

276 LLP

Event Contact: Betsy Greifenkamp
greifenk@illinois.edu
Sponsor:

Department of Physics

Event Type: Seminar/Symposium
 

By coupling trapped ions to the mode of an optical resonator, we can construct a coherent interface between single ions and single photons.  I will discuss two applications of such an interface.  First, an ion can be used a non-destructive probe of the light field in the resonator; Ramsey spectroscopy of the ion enables us to reconstruct the photon number distribution interacting with the ion.  Second, quantum information can be transferred from ions onto photons for distribution across a quantum network.  Probabilistic and deterministic realizations of a network interface will be introduced, based on the building blocks of ion-photon entanglement and ion-photon state transfer.  These experiments face significant challenges on the road to a scalable multi-node network, such as decoherence of the ion and losses in photonic channels.  I will outline current approaches to address these challenges.

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