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Quantum Entanglement in Higher Dimensions
来源: 日期2019-09-16 17:02 点击:

讲座题目:Quantum Entanglement in Higher Dimensions



报告人:Prof. ANTON ZEILINGERVienna Center for Quantum Science and Technology, University of Vienna & Austrian Academy of Sciences, Austria

摘要:An interesting and very visual workhorse for higher dimensions in Hilbert space are orbital angular momentum states of photons. That way, entanglement has been confirmed for quantum numbers above 10.000 and between two more than 100-dimensional quantum states. In the talk, I will also mention recent experiments in higher dimensions where the setup has been designed by the computer program Melvin. Some quantum communication experiments using such higher dimensional states will be presented. Such states of higher dimension allow to send more than 1 bit of information per photon. Since human intuition is slow, the computer program MELVIN was developed, which designs quantum experiments to realize a specific higher-dimensional multi-particle quantum state out of a standard toolbox available in the laboratory. The algorithm suggested setups for example for three entangled photons in three dimensions which have recently been realized, including a three-dimensional GHZ state. Also with the help of MELVIN, a new principle for creating entangled states was discovered, which might be called Entanglement by Path Identity

https://upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Godany_zeilinger2011_2452_blackboard.jpg/800px-Godany_zeilinger2011_2452_blackboard.jpg报告人简介:Prof. ANTON ZEILINGER was born in Austria, 1945. He obtained Ph.D degree in 1971 at the University of Vienna. He was a full professor of physics at Technical University of Munich in 1988 to 1989, at University of Innsbruck in 1990 to 1999. From 1999 to present, he has been a full professor at University of Vienna. From 2004 to 2013, he was a director of Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences. From 2013 till now, he has been a President of Austrian Academy of Sciences. Prof. Zeilinger’s research interests include fundamental phenomena in Quantum Mechanics and their applications in quantum information science and technology. He is the experimental pioneer in quantum information and quantum mechanics. In 1997, he and his team firstly realized quantum teleportation experiment, this work is the milestone in quantum information. Due to his remarkable achievements and contribution, he was awarded many honors including the Wolf prize in Physics 2010.

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