## Tuesday, September 02, 2014

### 50 years of Bell's theorem: watch Zeilinger's talk

Well, I don't really count Bell's theorem among the top discoveries of physics but it was still a result that showed the irreversibility of the quantum revolution more clearly than previous arguments.

Anton Zeilinger is a wise guy (not to mention that he is the president of the Austrian Academy of Sciences) and he is just giving a talk at CERN that you may watch live:
From John Bell at CERN to Quantum Communication and Quantum Computation (video)
The screen under the link above has two parts, one with the speaker and one with the transparencies.

You are invited to watch. The talk starts in 5 minutes, at 16:30 Prague Summer Time.

About 30 readers will open TRF in these five minutes so someone who is interested may still watch the talk from the beginning.

At the beginning, Director Heuer has pointed out that he was not interesting so there was no reason to take photos. He exchanged a few sentences with Zeilinger that were encrypted in German. I have mostly decoded the secret code. Concerning this code, Zeilinger pointed out that the word "entanglement" isn't too good so he proposed to replace it by a more accurate and simpler one, die Quantenverschränkung. To make things truly simple, he means what is called, in plain German, die Spukhaftfernwirkungquantenmechanischverschränkung. It really sounds like music to my ears.

The EPR paper from 1935 only had a few (good) citations for decades. It wouldn't have been enough for the authors to get a permanent position, no doubt about it.