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this post was submitted on 20 Nov 2023
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SneerClub
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Hurling ordure at the TREACLES, especially those closely related to LessWrong.
AI-Industrial-Complex grift is fine as long as it sufficiently relates to the AI doom from the TREACLES. (Though TechTakes may be more suitable.)
This is sneer club, not debate club. Unless it's amusing debate.
[Especially don't debate the race scientists, if any sneak in - we ban and delete them as unsuitable for the server.]
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I’m glad I’ve never pissed off a career physicist, cause this is concise, targeted destruction
If you want more of this, I wrote a full critique of his mangled intro to quantum physics, where he forgets the whole "conservation of energy" thing.
what are the other ones?
(when i'm thinking about splitter with pi/2 phase shift, i'm thinking about coupled line coupler or its waveguide analogue, but i come from microwave land on this one. maybe this works in fibers?)
I guess the rest of the experimental setup that recombines the photon amplitiudes. Like if you put 5 extra beam splitters in the bottom path, there wouldn't be full destructive interference.
I'm not sure how you'd actually build a symmetric beam splitter: wikipedia said you'd need to induce a particular extra phase shift on both transmission and reflection. (I'm fully theoretical physics so I'm not too familiar).
pi/2, sorry
In microwave land we have something called rat race coupler which can be used as an in-phase 1:1 splitter. This thing can be manufactured in waveguides so maybe (narrowband) fiber optic implementation is possible
https://www.microwaves101.com/encyclopedias/rat-race-couplers