Harmonic approxilator

Hey everyone! So I've been thinking about making another thread for quite a bit but didn't have a precise idea, so I figured why not just talk about something I love. Today, we'll talk about Hamiltonian constraints, and why they are awesome. I’ll ramble a bit but bear with me.

@AlCabbage045 I am absolutely fluent in both, shoot

Who here knows French and is good at reading cursive? Asking for no reason

@KTsagaris @bcubeddd Still way too common sadly

@HarmonicApprox @bcubeddd imagine still using semicolons and commas on indices for derivatives

tHooft made his guide on how to be a good theoretical physicist into a new website goodtheorist.science

@KTsagaris @bcubeddd His notes on GR are some of the worst I have ever read

@bcubeddd he is just shamelessly plugging his books and notes when there are better resources lmao, tHooft is a boomer crybaby i will not listen to him despite his nobel

@bcubeddd Okay I’m curious, I need the name to add them to my Hatedex of professors.

It was really interesting that the hep-th community happily went after a professor from the imperial periphery while this Harvard guy only hires East Asian women students, this other Harvard guy won’t read this student’s papers, and then ofc there’s pedophile sympathiser Randall

"woke activism" is incompatible with "veritas", but being the world's most notorious pedophile's confidant *in secret* is not. man you've lost your mind

@ThomasVanRiet2 PhD here, I do about 3/4 a year!

How many requests for refereeing papers you all get? I try to do 10/year max. But I wonder to what extend postdocs are asked? I was rarely asked as a postdoc (3, 4 times a year). Now I get several requests a week. Postdocs are equally qualified. Maybe even more....

@LimYenKheng @Samuel_Gregson Didn’t you read his famous paper on dS vacua?

@Samuel_Gregson is that....Jimmy Carr??

Well known guy who made “terrible error of judgement” with his tax avoidance wants you to know that Peter Thiel says huge fields of physics are a worthless drain. Ok…

@LimYenKheng Considering the themes and inspirations, an Evangelion tree topper is at least 60% catholic

This made me wonder if Evangelion tree toppers is still sort of consistently Christian iconography

@LimYenKheng I’m always afraid of movie adaptations … Especially for a game like sleeping dog which has so many things going for it, a series would be better suited but hell… I’ll keep my hopes up

@HarmonicApprox Me too... But sounds like they're making the movie. Which is just as good for me because im a fan of that director

wait.... does that mean....

@LimYenKheng @DanPaul49989437 You're from mathematical relativity right? Like all fine gentlemen

@DanPaul49989437 yes tenure-track. And also I'm not a cosmologist. Yes while there's GR in cosmology but it's just happens not the part of GR I'm familiar with

Hit me some more. I could use the distraction ngl.link/limyenkheng1

@LimYenKheng @DanPaul49989437 Thank me once you save Ferelden brother.

@HarmonicApprox @DanPaul49989437 Thanks - Origins is 90% off on Steam now 😳

@LimYenKheng @DanPaul49989437 Origins by a very large margin. Dragon Age 2 has a weird feel to it, inquisition was really enjoyable despite what people say. Veilguard was an incredible disappointment.

@DanPaul49989437 If I were pick a DA game to play, which one should I go for?

@LimYenKheng Tali’Zorah until the day I die. But Garrus does sound like a good option.

I'm in a love triangle between Garrus and Liara in mass effect.

@LimYenKheng Which is a morally correct decision

So...the game I played the most in 2025 was Elden Ring

People have been asking why don't I use Mathematica. Let me make a thread to explain why 1/n

Have you noticed that science communication is overrun with populist rhetoric? @TimHenke9 and I have. We are beset by influencers who rubbish institutions, prop up cranks, and mislead audiences about problems in science. We deserve better. Full video: youtube.com/watch?v=sQnOFG…

@TimHenke9 @bcubeddd @quantabhidharma @IsomorphicPhi @ZyMazza The pole will be shifted and we will get a dressed mass. It’s usually the argument we use to distinguish between physical and effective mass. It’s physical if it holds at any order of perturbations, but effective if it disappears by corrections.

@TimHenke9 @bcubeddd @quantabhidharma @IsomorphicPhi @ZyMazza It’s not a matter of diagram cancellation really. If you consider the fermionic loop in QED it should also generate a mass for photons. However we can show that during the computations the pole will not shift, because of gauge invariance. If we added a mass term before however

So the Higgs field is basically the aether or am i just really not getting it

@TimHenke9 @IsomorphicPhi @quantabhidharma @ZyMazza You can introduce a Higgs like interaction ( more precisely Stückelberg mechanism). You can also generate masses by Lorentz Symmetry breaking or through topological terms. You can also do like me sometimes and just kind of ignore the gauge invariance (which makes Yang Mills a no)

@HarmonicApprox @IsomorphicPhi @quantabhidharma @ZyMazza Massive as a result of Higgs interactions or by some other way?

@TimHenke9 @IsomorphicPhi @quantabhidharma @ZyMazza The crude explanation is that due to anomaly cancelation and the fact that the ward identity holds, no loop correction can shift the photon propagator and endow it with a mass in the standard model. There are ways to generate massive photons though, it’s part of my interests

@IsomorphicPhi @quantabhidharma @ZyMazza Isn't the proper way to perform the integral over some of the fields?