Belgrade (SRB), February 26, 2009. World-renowned pioneer in quantum information science and an experimental realizator of quantum teleportation with photons, prof. Anton Zeilinger, paid a visit to the Serbian Academy of Sciences and Arts (SASA) - being the Academy's Foreign Member - as well as to the Institute of Physics of the University of Belgrade, on 2009-02-24 (Tuesday) and 2009-02-25 (Wednesday).
Professor Anton Zeilinger is currently at following positions:
- the professor and the dean of the Faculty of Physics of the University of Vienna, Vienna (Austria) as well as the leader of the Quantum Optics, Quantum Nanophysics and Quantum Information group at the same faculty
- the director of the Institute for Quantum Optics and Quantum Information (IQOQI) of the Austrian Academy of Sciences, Vienna (Austria).
The morning and the early afternoon of 2009-02-24 (Tuesday), prof. Zeilinger, accompanied by prof. Časlav Brukner from the same group, spent in friendly talk with scientists and researchers of the Institute of Physics (Figs 215-01 – 215-04).
|
|
|
|
The professors patiently listened to and curiously watched current research activities in the Institute's Photonics Center and gave considerate remarks (Figs 215-05 – 215-08).
|
|
|
|
The professors compassionately shared the experience of scientific life with the members of the Photonics Center, particularly with young researchers (Figs 215-09 – 215-12).
|
|
|
|
In the evening (2009-02-24 T 18:00 +01), professor Zeilinger kindly gave a talk "Quantum Puzzles and Future Information Technologies" (in English) in the Conference Hall of the SASA.
On Wednesday, 2009-02-25 T 11:00 +01, in the Library Hall of the Institute of Physics, professor Zeilinger generously gave the details of his group's current research, presenting a lecture entitled "Long-Distance Entanglement and Quantum Cryptography" (in English) (Figs 215-13 and 215-14).
|
|
The experiment of the free-space transportation of entangled photons over the distance of 144 km, between La Palma and Tenerife on Canary Islands [215-01], was explained. The results show no decoherence during photon's 0.5 ms long travel through the air. The attenuation corresponds to estimated loss in a two-photon quantum communication between satellite and ground receivers, which is encouraging for future quantum communication scenarios. Also, the professor big-heartedly presented the results of his group's experiment which closes the loopholes of the Bell's inequality [215-02]. The experiment is the first one to close more than one of the three crucial loopholes at the same time – the locality and the freedom-of-choice loopholes.
Acknowledgments
Photographed by DV; photos enhanced by siteEditor.
References
[215-01] "High-fidelity transmission of entanglement over a high-loss freespace channel" at ArXiv [Accessed: 2009-02-25]
[215-02] "Violation of local realism with freedom of choice" at ArXiv [Accessed: 2009-02-25]
Sources and further reading
Titles of affiliations
lang=en
|
lang=(original)
|
Serbian Academy of Sciences and Arts (SASA) | (sr-Latn) Srpska akademija nauka i umetnosti (SANU) |
Institute of Physics of the University of Belgrade | (sr-Latn) Institut za fiziku Univerziteta u Beogradu |
Faculty of Physics of the University of Vienna | (de) Fakultät für Physik der Universität Wien |
Institute for Quantum Optics and Quantum Information | (de) Institut für Quantenoptik und Quanteninformation (IQOQI) |
Austrian Academy of Sciences | (de) Österreichische Akademie der Wissenschaften (ÖAW) |
¦ 215