Anton Zeilinger

Anton Zeilinger ( born May 20, 1945 in Ried ) is an Austrian quantum physicist and professor at the University of Vienna.

Life

After graduating from the high school in the Hietzinger Fichtnergasse Anton Zeilinger studied 1963-1971 Physics and Mathematics at the University of Vienna, 1971, he received his doctorate with the work Neutron Depolarization in Dysprosium Single Crystals ( Neutronendepolarisation in dysprosium single crystals ) at Helmut Rauch. In 1979 he completed his habilitation at the Technical University of Vienna. After living in the USA, France, Australia and Germany in 1990 he was a full professor at the University of Innsbruck and Director of the Institute for Experimental Physics.

Since 1999 he is professor at the University of Vienna and Director of the Institute for Experimental Physics. From 2006 to 2009 he was Dean of the Faculty of Physics of the University of Vienna.

He is a full member of the mathematics and science class of the Austrian Academy of Sciences (AAS ); Since 2004 he heads the department of the newly founded in the same year the Institute for Quantum Optics and Quantum Information ( IQOQI) of the Austrian Academy of Sciences. He has received for his fundamental contributions to these subjects the newly created Isaac Newton Medal of the British IOP ( " Institute of Physics " ) in late 2007.

On March 15, 2013 Anton Zeilinger was elected president of the Austrian Academy of Sciences. He took up this position on 1 July 2013.

Scientific work

Zeilinger has been known for its media- experiments on quantum teleportation in Innsbruck and Vienna. This earned him the nickname " Mr. Beam " a. He also works in the field of applications of quantum physics, especially in the new areas of quantum information and quantum cryptography. However, his main interest lies in the foundations of quantum physics and its implications for everyday understanding, based on our experience.

Zeilinger dealt initially with neutron interferometry, the research related to smoke his teacher at the Institut Laue -Langevin, with Clifford Shull at MIT and in Munich. Among other things, he managed to smoke and the experimental proof of the sign change for spin 1/2 particles at full revolutions. This sign change today plays an important role in many quantum information protocols.

In 1997, he succeeded with his group the initial demonstration of quantum teleportation of the state of an independent photon.

In 1989 he suggested to Daniel Greenberger, Michael Horne and Abner Shimony the GHZ experiment before to exclude theories with hidden variables. In 1999 it Zeilinger with his group, the experimental demonstration. Today such conditions are an integral part of a variety of protocols of quantum computer science, and especially of the quantum computer. For them, therefore, there is also a separate PACS code.

He has developed various techniques for quantum entanglement, as a source of polarized entangled photons of high intensity.

In 1998, he demonstrated entanglement swapping, teleportation of entangled states.

In the 2000s he turned increasingly to quantum information theory. Among other things, he demonstrated concepts of one-way quantum computer by Hans J. Briegel and Robert versions Endorf. As early as 1996 he demonstrated dense coding ( by Charles H. Bennett and Stephen Wiesner ) with two entangled two-state systems in quantum communication. This was the world's first application of entanglement in an information protocol. He works in collaboration with the Austrian Institute of Technology at the commercial realization of quantum key exchange with entangled photons, which he first demonstrated in 1999.

He extended his experiments made ​​on atom optics and demonstrated quantum mechanical interference effects in large molecules like buckyballs. This work will now automatically continued by his former co-author, Markus Arndt.

The mid-2000s he also turned to the opto-mechanics at the nanoscale. He succeeded the first evidence of the cooling of a nanomechanical system without feedback. Today, this work will be continued independently by Markus Aspelmeyer.

In 2012 he set a record with respect to the entanglement at high quantum numbers (in this case, the orbital angular momentum of photons). He was able to prove the entanglement of angular momentum of up to 300 ħ experimentally. These experiments are important for the question of the macroscopic limit of quantum mechanical entanglement.

Other work

In the early 2000s he campaigned for the establishment of an Austrian "University of Excellence" modeled after American elite universities. Today, he is vice chairman of the Board of Trustees (such as a Supervisory comparable) this research facility, which is now the Institute for Science and Technology Austria is called.

Furthermore Zeilinger from 1997 to 1998 chairman of the Austrian Physical Society, 1990-1999 Chairman of the Institute for Experimental Physics of the University of Innsbruck and from 1999 to 2007 Head of the Institute for Experimental Physics of the University of Vienna, and from 2006 to 2009 Dean of the Faculty of Physics of the University of Vienna. He was further significantly involved in the founding of the University of Vienna, which was required by the University Act 2002. He worked in this capacity on behalf of Rector Winckler. He headed in that capacity on behalf of Rector Winckler, a working group that made structure proposals for the internal organization of the university, particularly in terms of ensuring quality in teaching and research. He was also elected member of the founding convention of the University of Vienna from 2002 to 2003.

From 2010 to 2011 Anton Zeilinger was a delegate of the President of the Max Planck Society for the evaluation of the institutes of the research field particles, plasma and quantum physics. This area of ​​research at that time included the Max - Planck Institute for Quantum Optics, Garching, Max- Planck Institute for the Science of Light Erlangen, the Max Planck Institute for Physics in Munich, the Max - Planck - Institute for Plasma Physics, Garching, and the Max - Planck Institute for Nuclear Physics in Heidelberg.

He also participated in numerous other evaluations at home and abroad, particularly in France (CNRS ) and a system evaluation of physics in the UK. He's Advisory Board of the Institute of Quantum Communication from the University of Waterloo in Canada and the Department of Nuclear Engineering at the Massachusetts Institute of Technology (MIT). Since 1996, Anton Zeilinger is also Advisor of the journal Scientific American. He was also a member of several editorial boards of several international physics journals.

2009 Anton Zeilinger founded the International Academy Traun churches he has since then. He is also a member of the Advisory Board, founded in December 2010 Upper Austrian think tank ACADEMIA SUPERIOR - Society for future research.

Honors and Awards

International prices

  • Finalist for the World Technology Award for Communications Technology (2012 )
  • Wolf Prize in Physics (2010, shared with Alain Aspect and John Clauser )
  • Great Federal Cross of Merit with Star of the Federal Republic of Germany (2009)
  • ERC Advanced Grant ( 2008)
  • International Quantum Communication Award (2008)
  • First Isaac Newton Medal ( Institute of Physics, 2008)
  • Quantum Electronics Award (2007 )
  • King Faisal Prize ( 2005)
  • Descartes Prize (2005)
  • Lorenz Oken Medal of the Society of German Natural Scientists and Physicians (2004)
  • Klopsteg Price ( 2004)
  • Sartorius Price ( 2003)
  • Order Pour le Mérite for Sciences and Arts (2001)
  • Alexander von Humboldt Research Award (2000)
  • European Optics Prize (1997)
  • European Lecturer (1996 )
  • Vinci Prix d'Excellence (1995 )

Austrian prices

  • Big Tiroler Adler Orden ( 2013)
  • Gold Decoration for Services to the City of Vienna (2006)
  • Wilhelm Exner Medal (2005)
  • Johannes Kepler Award for the promotion of astronomy education (2002)
  • Austrian Decoration for Science and Art (2001)
  • Visionary of the Year in Science ( 2001)
  • City of Vienna Prize for Natural Sciences ( 2000)
  • Cardinal Innitzer Appreciation Award (1997)
  • Austrian Scientist of the Year (1996 )
  • Promotion price of Theodor Körner Foundation (1980 )
  • Cardinal Innitzer Price ( 1979)
  • Young Investigator Award of the City of Vienna for Young Scientists (1975 )

More Awards

  • Honorary doctorate from the Humboldt University of Berlin (2005) and the University of Gdansk (2006)
  • Honorary Professor, University of Science and Technology of China ( 1996)
  • Member of the National Academy of Sciences of the United States of America (since 2013), the German Academy of Sciences Leopoldina (since 2005), the Berlin-Brandenburg, the Austrian and Slovak Academies of Sciences, the Academia Scientiarum et Artium Europaea, the Serbian Academy of Sciences and Arts and the Paris Academy of Sciences
  • Fellow, American Physical Society and American Association for the Advancement of Science ( AAAS)
  • Many honorary lectures. In the summer semester 2006 Anton Zeilinger for example, was seventh holder of the Johannes Gutenberg Endowed Professorship at the Johannes Gutenberg University Mainz.
  • 2005 was voted one of " 10 people Who Could change the world " Anton Zeilinger of the renowned English weekly the New Statesman.
  • The asteroid ( 48681 ) Zeilinger was named in 2005 for the 60th birthday of Anton Zeilinger after him.

Quote

  • "I'm not a fan of constructivism, but a follower of the Copenhagen interpretation. Then the quantum mechanical state is the information that we have about the world. It turns out ... ultimately, that information is an essential building block in the world. We must probably of naive realism, according to which the world exists in itself, without our help, and independent of our observation adopt someday. "
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