Can we probe the quantization of the black hole horizon with gravitational waves?
26 May 2017 | 12:09 pm

Tl;dr: Yes, but the testable cases aren’t the most plausible ones. It’s the year 2017, but we still don’t know how space and time get along with quantum mechanics. The best clue so far comes from Stephen Hawking and Jacob Bekenstein. They made one of the most surprising finds that theoretical physics saw in the 20th century: Black holes have entropy. It was a surprise because entropy is a

Can we use gravitational waves to rule out extra dimensions – and string theory with it?
19 May 2017 | 10:47 am

Gravitational Waves, Computer simulation. Credits: Henze, NASA Tl;dr: Probably not. Last week I learned from New Scientist that “Gravitational waves could show hints of extra dimensions.” The article is about a paper which recently appeared on the arxiv: Signatures of extra dimensions in gravitational waves David Andriot and Gustavo Lucena Gómez arXiv:1704.07392 [hep-th] The claim in this

“Not a Toy” - New Video about Symmetry Breaking
16 May 2017 | 3:25 pm

Here is the third and last of the music videos I produced together with Apostolos Vasilidis and Timo Alho, sponsored by FQXi. The first two are here and here. In this video, I am be-singing a virtual particle pair that tries to separate, and quite literally reflect on the inevitable imperfection of reality. The lyrics of this song went through an estimated ten thousand iterations until we

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