Rupert Ursin (born January 26, 1973) is an Austrian experimental physicist active in the field of

quantum entanglement Quantum entanglement is the phenomenon that occurs when a group of particles are generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the group cannot be described independently of the state o ...

and communications. He is currently deputy director at the

Institute for Quantum Optics and Quantum Information The Institute for Quantum Optics and Quantum Information (IQOQI) (german: Institut für Quantenoptik und Quanteninformation) is a member institute of the Austrian Academy of Sciences and was founded in November 2003, to create an Austrian resear ...

(IQOQI) of the Austrian Academy of Sciences.

Education

Ursin completed his Masters diploma in 2001, then in December 2006 completed a PhD dissertation at

University of Vienna The University of Vienna (german: Universität Wien) is a public research university located in Vienna, Austria. It was founded by Duke Rudolph IV in 1365 and is the oldest university in the German-speaking world. With its long and rich h ...

on quantum teleportation over long distances. He continued with postdoctoral studies in 2007, and since 2013 has served as a research group leader at the IQOQI.

Research

Ursin's research group is active in the field of

and communications. In particular, the team demonstrated an example of loophole-free Bell inequality and worked on

quantum key distribution Quantum key distribution (QKD) is a secure communication method which implements a cryptographic protocol involving components of quantum mechanics. It enables two parties to produce a shared random secret key known only to them, which can then ...

. In 2004, Ursin and colleagues from the Institute for Experimental Physics at the University of Vienna succeeded in the world's-first demonstration of quantum teleportation of a

photon A photon () is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are Massless particle, massless ...

outside of the laboratory, sending it a distance of 600 meters across the River Danube. In 2007, Ursin's group succeeded in distributing entangled photons between the

Canary Islands The Canary Islands (; es, Canarias, ), also known informally as the Canaries, are a Spanish autonomous community and archipelago in the Atlantic Ocean, in Macaronesia. At their closest point to the African mainland, they are west of Mo ...

La Palma La Palma (, ), also known as ''La isla bonita'' () and officially San Miguel de La Palma, is the most north-westerly island of the Canary Islands, Spain. La Palma has an area of making it the fifth largest of the eight main Canary Islands. The ...

and

Tenerife Tenerife (; ; formerly spelled ''Teneriffe'') is the largest and most populous island of the Canary Islands. It is home to 43% of the total population of the Archipelago, archipelago. With a land area of and a population of 978,100 inhabitant ...

over a world-record distance of 144 km. In 2016, Ursin's group successfully tested entanglement in

accelerated reference frame A non-inertial reference frame is a frame of reference that undergoes acceleration with respect to an inertial frame. An accelerometer at rest in a non-inertial frame will, in general, detect a non-zero acceleration. While the laws of motion are ...

Awards

* 2009 Christian-Doppler-Prize''Rupert Ursin receives Christian-Doppler-Prize 2009''
. 22 June 2010, retrieved on 03 May 2015.

Bibliography

* Fink, M. ''et al''
Experimental test of photonic entanglement in accelerated reference frames
'' Nat. Comm.'' 8, 15304 doi: 10.1038/ncomms15304 (2017). * Rupert Ursin et al.
Quantum Teleportation across the Danube

Nature Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...

, 430, 849 (2004). * Rupert Ursin et al.
Entanglement-based quantum communication over 144 km

Nature Physics ''Nature Physics'' is a monthly peer-reviewed scientific journal published by Nature Portfolio. It was first published in October 2005 (volume 1, issue 1). The chief editor is Andrea Taroni, who is a full-time professional editor employed by this ...

3, 481 - 486 (2007)

External links

Ursin group homepage
Institute for Quantum Optics and Quantum Information Vienna

References

{{DEFAULTSORT:Ursin, Rupert University of Vienna alumni 1973 births Scientists from Salzburg 21st-century Austrian physicists Living people