Light and the Quantum – with Serge Haroche

22 thoughts on “Light and the Quantum – with Serge Haroche”

1. The privilege to watch this is outstanding. Thanks for making it available.

2. COMIC SANS!

3. cardinal sin of presentations right there haha

4. 1 – Firstly your picture of atom is wrong. The electron orbit of nuclei representation is ok, but rest is fiction.
   2 – Schrödinger cat excrement is wonderful conjuring trick to fool the ignorant. One of the first trick most magician learn. Correct answer is simple, if you know structure of photon, electron and nuclei. You will know when the radio active material (depend on element) will decay and release the poison. Depending on poison you know when it will kill a known size & condition cat. There for the wise know cat is alive or dead. For those who are ignorant of the facts it is both. Here fantasy began.
   3 – the rest is waste of my time as I have commented elsewhere already. It is the usual dogma of new religion for believers from their prophets. The correct part is electromagnetism ( photon ) which is emanate from nuclei in unit. MG1

5. First 45 minutes is a survey of milestones in the development of quantum physics. Discussion of his particular experiments begins at 45:25.

6. Intelligent videography is needed. Keep the camera on the slide, not on the face. We need not see the mouth delivering the words we hear. But we do need to have time with the slides about which the words speak. Your poor videography destroys the usefulness of the video.

7. Informative to a point. I didn't see anything new, but a good talk nonetheless. Thanks for the post!

8. Can you not entangle 2 photons, send them both through the double split & have 1 land on a screen & the other go through that screen to a 2nd screen, showing 2 points & thus the trajectory?
   I am assuming that you can entangle in opposite states where the 1st filter can both catch a photon while allowing it's doppelgänger to go through.
   or
   Have the photon catching screen divided in horizontal gradients of distance from the splits. The further light goes, the slightly different the pattern's location will be thus giving many reference points for the trajectory.

9. I've never seen it before.
   But I suggest you see some interesting videos on SALEH THEORY-com about behaviors of photon.

10. Speed of light in miles per second is 186,282 not 189,000

11. He quickly discards Everett's theory but IMHO it's still the most belieavable one, because the simplest. "it's not economical" is in no way a valid argument against it. Even in a single universe, the # of particles is already way beyond human imagination, I don't see the problem in adding an infinity of branches to that

12. Decoherence is a camera in a box with a cat. Superposition means I don't know, let's measure it. Entanglement is a system, not just a pair and is just a parlor trick. The spooky action is a scientist explaining a question he doesn't know the answer to, and what's strange is he can't say, "I don't understand this".

13. Knowledge deserves to be free and shared.

14. If you don't understand QM then you depend on a system of belief, and even if you organize those beliefs scientifically, that implies a faith in habits and conventions and not evidence, principles and understanding of actuality, which may seem bland and ordinary at first, but is better than constantly encountering unpleasant surprises.

    Interesting experiments.

15. Serge Haroch greetings from Morocco.

16. As if the subject matter alone wasn’t already hard enough to understand.

17. It is refreshing to see a lecturer talk about the decoherence problem in regards to quantum computing. So many talks about quantum computers only focus on the applications (what a quantum computer could do) and speak as though they already exist. In my opinion, the decoherence problem is a deal-breaker. Lets build a large-scale quantum computer first, then we can worry about the quantum algorithms we'll run on it.

18. Jean Bricmont disproves this dude – de Broglie got quantum physics correct and predicted nonlocality in 1923.

19. When Wallace and Darwin postulated the natural selection ideas many people couldn't understand it, and it wasn't just because of lack of proofs, which weren't that scarce but weren't as readily available to the layman, but also because it ran counterintuitive to what they were born, educated and practiced with. Maybe there's another meaning to Feynman's phrase, but since he was quite direct when explaining his thoughts, I think we are meant to believe that future generations who get used to the probabilities and not necesarily feel uncomfortable by it will "understand" the theory, physicists in the beginning of course and, someday, the general population.

20. Quantum mechanics is not a theory, it is a cheap excuse.

21. Sorry but this talk was so monotonous and not at all enthusiastic.

22. The Mass Institute

Comments are closed.