BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-6941
DTSTART:20220503T150000Z
DTEND:20220503T160000Z
DTSTAMP:20260414T113415Z
LAST-MODIFIED:20220502T154631Z
LOCATION:for zoom link: https://pme.uchicago.edu/event/pme-distinguish
 ed-quantum-colloquium-series-wolfgang-tittel
SUMMARY:Quantum network technology: the second life of rare-earth crys
 tals\, Wisconsin Quantum Institute\, Wolfgang Tittel\, QuTech and Kavl
 i Institute of Nanoscience\, Delft Technical University\, The Netherla
 nds
DESCRIPTION:Starting with the demonstration of lasing more than 50 yea
 rs ago\, the special properties of rare-earth crystals and glasses hav
 e enabled the development of numerous solid-state lasers and amplifier
 s\, which are crucial for the functioning of today’s Internet. As a 
 fascinating generalization of their use in optical communication infra
 structure\, it became clear during the past decade that\, when cooled 
 to a few Kelvin\, rare-earth crystals also promise the creation of tec
 hnology for quantum communication networks.<br>
\n<br>
\nI will discus
 s recent advances towards the development of key ingredients of such n
 etworks: the creation of single photons using individual rare-earth io
 ns coupled to nano-photonic cavities\, as well as the reversible stora
 ge of quantum states of light in large ensembles of rare-earth ions. T
 his work is not only interesting from a fundamental point of view\, bu
 t furthermore paves the path towards a quantum repeater\, which will u
 ltimately enable quantum communications over arbitrary distances.
URL:https://www.physics.wisc.edu/events/?id=6941
END:VEVENT
END:VCALENDAR