Quantum Puzzles: From Foundations to Applications

讲座名称: Quantum Puzzles: From Foundations to Applications
讲座时间: 2019-09-23
讲座人: ANTON ZEILINGER
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校区: 兴庆校区
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讲座内容: 讲座题目:Quantum Puzzles: From Foundations to Applications 讲座时间:2019年9月23日下午16:30-18:30 讲座地点:仲英楼102 讲座人:ANTON ZEILINGER 讲座摘要: The development of quantum physics – arguably the most successful description of nature ever – was accompanied by fundamental debates from the early days until today. Schrödinger’s cat, Einstein’s “spooky action at a distance” and his comment that “God does not play dice with the Universe” are deeply rooted in fundamental features of the theory: superposition, entanglement and randomness. The concept of Quantum Information encompasses these fundamental features. In the talk, I will discuss some fundamental experiments. These will include, for example, quantum teleportation, entanglement swapping, delayed choice experiments and quantum communication. The decision whether two photons which share no common past are entangled or not can be made at the time when they already have been detected.  Finally, I will discuss tests of Bell's inequality including a recent Cosmic Bell Test experiment, where the randomness is taken from fluctuations of light from distant quasars. The talk will conclude with The Big Bell Test involving 100.000 participants providing independent input for 13 experiments on 5 continents.
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