Physics Duck
Physics Duck
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Quantum Field Theory EP 3: The source function
Hi and welcome to the third episode in my series on quantum field theory! In this episode, we will take a closer look at the propagator in 4 dimensional spacetime, and after that we will study three examples of source functions one can come up with to see how our quantum field responds to them. Because some results in this video require a larger amount of calculus to derive, I decided to add a document in which I derived the results for you. If you are interested you can have a look here:
drive.google.com/file/d/1DPARhx8vQzqnduQgZHUKibpa8PEkLmVD/view?usp=drive_link.
The math is not necessary to understand the conclusions drawn in this video, so if you are not that interested in the mathematical details, the video is still worth a watch!
Book: www.amazon.com/Quantum-Field-Theory-Diagrammatic-Approach/dp/1108486215
Music: soundcloud.com/ahmed-mbk-934601716/peacefully-es-jammy-jams
Made with Manim: www.manim.community/
มุมมอง: 2 048

วีดีโอ

Quantum Field Theory EP 2: The propagator in 4D spacetime
มุมมอง 2.7Kปีที่แล้ว
Hi and welcome to the second episode in my series on quantum field theory! In it, I will derive the propagator function first in one spatial dimension, and then in four-dimensional spacetime. In this episode I will focus only on the derivation of this abstract quantity, whereas in the next video we will study its workings more closely. I based this video series on the fantastic textbook "Quantu...
Quantum Field Theory EP 1: 0-dimensional quantum fields
มุมมอง 7Kปีที่แล้ว
Hi and welcome to the first episode in my new series on quantum field theory! In it, I will derive some beautiful results from quantum field theory, building up from 0 dimensional quantum fields and assuming only a background in calculus. If you have any questions, comments or critiques, please let me know in the comments below. I based this video series on the fantastic textbook "Quantum field...
What's a quantum computer? A fundamental introduction
มุมมอง 1.8Kปีที่แล้ว
In this video I explain the fundamental differences between a classical computer and a quantum computer, presenting an intuitive understanding of the workings of a quantum computer and giving an example of one of its fantastic uses. Music: soundcloud.com/ahmed-mbk-934601716/peacefully-es-jammy-jams Made with Manim: www.manim.community/
What's a Fock space? An intuitive introduction
มุมมอง 19Kปีที่แล้ว
An intuitive introduction to the ideas behind the Fock space, a vector space used in multiparticle quantum mechanics and beyond. Music: soundcloud.com/ahmed-mbk-934601716/peacefully-es-jammy-jams Made with Manim: www.manim.community/
What's a Hilbert space? A visual introduction *updated audio*
มุมมอง 6Kปีที่แล้ว
*Updated audio* A visual introduction to the ideas behind Hilbert spaces in ordinary quantum mechanics. Music: soundcloud.com/ahmed-mbk-934601716/peacefully-es-jammy-jams Manim: www.manim.community/
What's a Hilbert space? A visual introduction
มุมมอง 74K2 ปีที่แล้ว
Updated sound quality video here: th-cam.com/video/fkQ_W6J19W8/w-d-xo.html&ab_channel=PhysicsDuck A visual introduction to the ideas behind Hilbert spaces in ordinary quantum mechanics. Music: soundcloud.com/ahmed-mbk-934601716/peacefully-es-jammy-jams Manim: www.manim.community/

ความคิดเห็น

  • @n00bslayherttv92
    @n00bslayherttv92 2 วันที่ผ่านมา

    Constructive feedback: First minute 30 seconds i havent been hooked. background music + mumbling is not good. The sound balance has the music higher than your voice at times, others not. I came for information not to be serenaded, know your audience. You put up a bunch of "you've probably seen" physics equations and then in the literal next breath exclaim how you really don't know what any of them mean. This kills your credulousness to any rational watcher. You might want to take a step back and ask yourself what and why you're doing this. Is it to present higher level science ideas in layman's terms? Or is it to explain intriguing scientific ideas to a more general scientific body? I feel like your channel tries to be the latter but it is formally most the prior. I'm just being real, the unclear pronunciation, the mumbling, the background music, the seemingly lack of true understanding of the concept, all leave me as a viewer to think, especially after a minute 30 that why am I not watching any of the other Hilbert Space videos that don't have production issues and actually know where theyre talking about and get right to the point. I clicked the *updated audio* I wasnt going to and just going to say good job, then I clicked it, it's just as terrible if not more, and you're killing your algo trying to push the same video twice, youtube is smarter than you think. Just redo the whole video... you're losing more trying to keep a 75k count video up with stunted growth and a duplicate video on the same channel rather than realizing if what you really want is out there this 75k count video is nothing in the grand scheme of things and is actually holding you back. Bro it's a terrible video let's be real.

  • @basics7930
    @basics7930 12 วันที่ผ่านมา

    bad audio

  • @vandegas4326
    @vandegas4326 13 วันที่ผ่านมา

    I CANNOT HEAR YOU DUMMY

  • @Gg77-i7d
    @Gg77-i7d 17 วันที่ผ่านมา

    What is the typical advantage of putting that music there?

  • @wattsfield1889
    @wattsfield1889 18 วันที่ผ่านมา

    Life is good when there's an animated, dark background style video explaining the math/physics concept I'm learning.

  • @AndréFraga-u1n
    @AndréFraga-u1n 22 วันที่ผ่านมา

    I think the horrible audio quality and almost indecipherable voice is here to chase away the casuals. Love it

  • @larsvandijnen1476
    @larsvandijnen1476 หลายเดือนก่อน

    Je bent gwn de Nederlands versie van 3blue1brown. Doe zelf datascience en AI, en nog een andere bachelor. Ik vind quantum computation zeer interessant heb je voor mijn enige recommendaties voor boeken die een introductie niveau geven tot dit onderwerp?

  • @notmyrealname.screwgooglep8869
    @notmyrealname.screwgooglep8869 หลายเดือนก่อน

    yall mfers in here are geniusese nate diaz brought me here, a true pioneer of hilbert spaces

  • @gorgon__soup
    @gorgon__soup หลายเดือนก่อน

    WHY DO YOU HAVE LOUD MUSIC IN THE BACKGROUND AND WHY ARE YOU WHISPERING IN MY LEFT EAR. EXPLAINING HILBERT SPACE WITH THESE PREREQUISITES MAKES ME QUESTION THE EPISTEMOLOGY

  • @joejoe-lb6bw
    @joejoe-lb6bw หลายเดือนก่อน

    so hilbert space is a mysterious piano music?

  • @maths.visualization
    @maths.visualization หลายเดือนก่อน

    Can you video code??

  • @b2blh
    @b2blh หลายเดือนก่อน

    Music is extremely unnecessary and annoying

  • @doomedmonk
    @doomedmonk หลายเดือนก่อน

    You can dance with an inflatable lady and at the same time find out that Einstein is an idiot. so what do you say about an unsportsmanlike game like Hilbert Space Free Will Generator or Hilbert Space Microcausality required Dirac Field, with which they transmute you into Homer Simpson by perverted media agencies just because of primitive intellect and efficiency of advertising and business for doctors? and what about those primitive governments incapable of making laws at this level.. what a shitness planet, some croo to sabotage?:)

  • @Bryan-t1l8n
    @Bryan-t1l8n หลายเดือนก่อน

    We need new math.

  • @khaliliskarous2225
    @khaliliskarous2225 หลายเดือนก่อน

    Thank you for this beautiful explanation!

  • @brunig11
    @brunig11 2 หลายเดือนก่อน

    Good video well explained but please lose the music

  • @davidwright8432
    @davidwright8432 2 หลายเดือนก่อน

    Thank you! Greatly improved comprehensibility.

  • @GulfCoastJohnny
    @GulfCoastJohnny 2 หลายเดือนก่อน

    Needless music. And needlessly loud. Couldn’t watch for more than a minute. Try again, without the ridiculous music.

  • @iamhe999
    @iamhe999 2 หลายเดือนก่อน

    The sound engineer on this video injected too much music making the vocals difficult to follow..

  • @LstBrth
    @LstBrth 2 หลายเดือนก่อน

    I don't know if placing your voice on the left while the music plays on the right is a metaphor you used to just represent how complex it is to grasp this up the first time, technical issues, or just a design flaw in the video' script. But seriously. Just turn off the music and center your voice, please.

  • @davidwright8432
    @davidwright8432 2 หลายเดือนก่อน

    Thanks! Sharpens what had been rather imprecise recollections from a bit back!

  • @alexesmarshman5923
    @alexesmarshman5923 2 หลายเดือนก่อน

    Anderson Jennifer Clark Nancy Perez Elizabeth

  • @srp3151
    @srp3151 2 หลายเดือนก่อน

    Could you please make the music louder. It was not loud enough, because I could hear your voice. Otherwise it was good.

  • @jakeaustria5445
    @jakeaustria5445 2 หลายเดือนก่อน

    Thank You ❤

  • @normanklein3155
    @normanklein3155 2 หลายเดือนก่อน

    I wish the speaker would stop talking so we could hear the music more clearly.

    • @brad064
      @brad064 หลายเดือนก่อน

      Low IQ comment

  • @Jake-od5yz
    @Jake-od5yz 2 หลายเดือนก่อน

    You remind me a lot of my brother. He passed away this part February. He was a physicist; possibly one of the great minds to ever live. I don’t understand much of anything that you say, but I didn’t understand him either. I watch your videos now because they bring me happy memories of my brother.

  • @ismailbachchar1577
    @ismailbachchar1577 2 หลายเดือนก่อน

    3:15

  • @Andrewmargaretthomas
    @Andrewmargaretthomas 3 หลายเดือนก่อน

    Stop the music!!! I can’t hear you

  • @laplacesdemon01
    @laplacesdemon01 3 หลายเดือนก่อน

    Awesome video.

  • @elguapo3436
    @elguapo3436 3 หลายเดือนก่อน

    background music relatively too loud, doesn't add any value to the content. stopped watching at 40sec...

  • @leonvonmoltke7923
    @leonvonmoltke7923 3 หลายเดือนก่อน

    Pleaasseee make more videos, do you have a patreon or a payment platform I can contribute to to help you make more videos

  • @sehilalhalabi4974
    @sehilalhalabi4974 4 หลายเดือนก่อน

    Thanks for this explanation But my brain had to think about the music and think about the meaning It was a double effort

  • @mauriciomandujano5281
    @mauriciomandujano5281 4 หลายเดือนก่อน

    Now both of my ears enjoyed this video ,

  • @roxashikari3725
    @roxashikari3725 5 หลายเดือนก่อน

    This was very illuminating, thank you!

  • @geoffbanks6197
    @geoffbanks6197 5 หลายเดือนก่อน

    Neither of my ears enjoyed this.

  • @maulikjain3894
    @maulikjain3894 5 หลายเดือนก่อน

    Hi you have a mono audio on i cant watch it on headpones

  • @davidevans9194
    @davidevans9194 5 หลายเดือนก่อน

    why the music?!

  • @gunkati9024
    @gunkati9024 5 หลายเดือนก่อน

    This channel is pretty underrated

  • @alienspace3960
    @alienspace3960 5 หลายเดือนก่อน

    do you have a video on banach space

  • @kka107
    @kka107 6 หลายเดือนก่อน

    Sorry but the background music is louder than your voice 😢

  • @michaelmartin4910
    @michaelmartin4910 6 หลายเดือนก่อน

    The background music makes this video far too difficult for me to hear. Please reconsider the need for continuous music.

  • @amoghkm
    @amoghkm 7 หลายเดือนก่อน

    I wouldn't listen to the others; the background and animation music make the video delightful. :)

  • @proff.wilsonhugo9572
    @proff.wilsonhugo9572 7 หลายเดือนก่อน

    Were hilbert space????? Vectorial space with intern produt + all Cauchy sequences are convergent. You speak noting of hilbert space but only space of states (a la Cohen) . please more caution a respect of mathematics

  • @MrAdamo
    @MrAdamo 7 หลายเดือนก่อน

    What the Fock is a space?

  • @mikewallace7152
    @mikewallace7152 7 หลายเดือนก่อน

    Good job RIPPING OFF, 3BLUE 1 BROWN

  • @sharshabillian
    @sharshabillian 7 หลายเดือนก่อน

    Thanks for updating the audio 🙂 Watching the video now for the first time

  • @jimnewton4534
    @jimnewton4534 7 หลายเดือนก่อน

    Isn't a Hilbert space just a complete vector space whose norm is derived in the conventional way from its inner product? It doesn't need to be a set of functions.

  • @geoglyphproject
    @geoglyphproject 7 หลายเดือนก่อน

    Looking forward to the next episode

  • @jonathanballoch
    @jonathanballoch 7 หลายเดือนก่อน

    This is a good video, but I think it overlooks *why* this is a hilbert space. would be helpful if you used the quantum mechanical examples to explain the properties of the representation that make this space is a Hilbert space and not some other type of space/representation.

  • @klikkolee
    @klikkolee 7 หลายเดือนก่อน

    I'm very confused by the notation of the formulas with integrals. When I was taught calculus, the d{variable} notation functioned to mark the right hand side of the integrand. As written, there is nothing in the integral, but the formula doesn't make sense without the phi yerms in the integral.