D-Term Determined (Finally Writing The Paper)
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- Опубликовано: 29 ноя 2023
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A little update since trying to resolve normalization issue in my research.
I've Been Stuck On This Problem For... (Vlog):
• I've Been Stuck On Thi...
A New Chapter of my PhD Has Begun (SCET video from last year):
• A New Chapter of my Ph...
Papers etc referenced:
-Textbook referencing for exercise:
Quantum Field Theory and the Standard Model (Matthew Schwartz)
Book I mention about electromagnetic form factors and fourier transforms:
Quarks and Leptons (Halzen and Martin)
-DIS figure with hard/soft/jet function
www.sciencedirect.com/science...
(will probably add more later today) 
Развлечения
Pick up a screen protector and more over at PaperLike:
paperlike.com/andrewdotson
I have noticed in Griffith's Electrodynamics , he used a lot of references at almost every page. But I can not find them at online. Where can I get them , please give me some source of them !
2:12 "Eight months has apparently gone by without my consent" is quite possibly one of the most relatable sentences I've ever heard
Real
FR tho
Babe, wake up, new Physics Dad video just dropped
I’m awake baby
@@curiosityzero2151
You two woke up in papa flammy's basement like Andrew?
It’s so amazing to see this come full circle!! I started watching you when we were both Physics undergrads, and now that I’m defending in March this video feels like a good omen. Thank you for being an inspiration on the grad school journey!
Best of luck with your defense!
Good luck!
The old joke in my day was to find a really nice bottle of scotch, walk in with it and announce that if you left with your degree, the scotch would stay. Best of luck to you!
What does defending mean?
@@eleonarcrimson858defending their doctoral thesis, which means presenting it to a jury of physics professors who define if you effectively are suited to earn the PhD title
Just commenting here to express the need of new new videos 😢
37th! Great Video, Drew. Keep it up! Love, Mom 💕
This is the most wholesome thing ever!! Big love from the land down under ❤️🪃🦘🇦🇺❤️
@@noahhosking495 - I’ve never been, but it looks so beautiful! Maybe someday 💕
This is so amazing. I was just fresh out of high school when I started watching your videos. Fast forward 6 yrs, completed my bachelors in electrical (π = 3), having a job, and it has been a ride watching you go from preparing for Physics GRE (grabbing it by its balls), getting rejected from universities and finally solving these problems out. Amazing!!!
I don't care whether you post a video every day or post it once in an year. I will watch them anyways.
Sounds like you're out there killin it! Awesome to hear where you guys are at now.
I'm also doing my doctorate in physics (computational plasma turbulence) but I gotta say you really have your sh*t together so much better than I or most people I work with do. Having everything already typed out in latex with proper commenting is such a pro move that pays serious dividends. Wish I had done it sooner.
Hmm I'm not very familiar, but my knee jerk reaction is that it sounds like that would be useful for stellar and maybe QGP physics? What process are you studying this in?
And thanks but I've had some really bad habits as well, just glad this one really paid off!
@@AndrewDotsonvideos apologies, I realise I didn't explain my field very well. I'm working on fusion energy reactors. Specifically I do something similar to computational fluid dynamics except you add the major headache of Maxwell's equations to the navier stokes. For computational expedience I use some funky coordinate transformations. Your videos on tensors were much appreciated :)
@@hahahasanI understand none of that, but it sounds so cool.
@@hahahasan wow! I'm applying to PhD programs for computational plasma physics (primarily fusion) right now. I hope your experience has been well! What is your plan afterwards?
@@kasaiyukidragneel8457i am a little biased towards the negative experience but that's due to my overly ambitious initial goals and covid severely interrupting my start. But in general most projects are perfectly fine and indeed very interesting and rewarding. Even I have learnt a hell of a lot of cool things already.
When applying be aware of the vastly different approaches required depending on what kind and which part of the fusion plasma you are focussing on. To model the entire reactor with one code base is impossible. There's a real symphony of vastly different physical phenomenon going on.
Should note I've been talking about tokamaks. The themes are similar but there are some key differences with stellarators you might be interested to look up. I'm afraid I know barely anything about the inertial confinement side of things but they also seem to be doing some great work.
Edit: I'm personally planning to leave the field once I submit my thesis. But this is seen by my colleagues as quite a rogue move. There's more funding than ever and the fusion community is bustling with activity all around the world. It's a really exciting time to be part of it and I totally recommend you to take part as well! It's a difficult choice to be leaving tbh but I just have some different priorities atm.
Let's gooo D-term conquered now onto solving quantum gravity! It's pretty cool to see how collaborative hep-th is :D Will you start the intro QFT series soon?
Yeah I haven't really gotten to work with anybody throughout gradschool so all the collaborations now are definitely welcome! I probably won't start a QFT series for a while, and it's going to take a long time to finish. More of a long term goal of mine. I will be making videos though on SCET, but like I said they probably won't be immediately useful for most people because I'll kind of assume intro QFT as a pre-requisite.
nice job man! good to see the research progress!
Good to see you! All the best!
Great to see you post again Andrew!
So happy for you man! ❤️
Can't wait to hear about the D-Term
We're proud of you Andrew! Keep it up!
This video coming out is insane timing I literally just finished your tensor calc series and refreshed your page and saw this! Best of luck with getting published and writing!
So happy you dropped a new video, and congratulations on solving the D Term!
I started watching you many years ago, and I started a PhD in GR two months ago. Im already super excited!
Looking forward to regular videos from you (if you can, no worries)!
LET'S GO. SO HAPPY FOR YOU ANDREW!
Really though, I've been following your channel for quite a while, and I feel so happy for you that the paper is coming along nicely! You're a huge inspiration for someone like me, who wants to become a physicist as well and do research! Best wishes for you!
I've been loving your videos recently. I began with your skit videos, then I got into your more serious undergrad videos and then your personal journey/gradschool videos. These have made me even more excited to pursue physics. I'm going to college next year, and I can't wait!
Keep your technical videos coming. To me they're like sitting at a physics colloquium in that the material you cover pushes me to learn a new area of physics. You're doing a great job!
Glad to see you happy!
6 years ago i started watching your videos, it motivated me to pursue my academic path into theoretical physics (doing a masters rn) and im very happy as well.
Hey Andrew, I literally love you man. You’ve helped me in more way than I can count (and we both know counting can be hard sometimes). Keep up the inspirational work man, love you
i’ve missed these videos so much!! you were the one who got me to officially decide to be a physics major back when applying for college. i’m now in a research team doing stuff with OLEDs in my freshman year and i’m the happiest i’ve ever been!! thank you so much!!! i’m excited to see how this all ties together at the end :)
Hope all is going well, Andrew.
Looking forward to the next upload!
You are a true inspiration Andrew. Thank you for choosing Physics.
Glad to see you again Andrew!
🙌
Happy to hear it worked out, Andrew. Also, solving problems in LaTeX is something I've also gotten used to. It works well, but does feel odd when you transition from pen and paper to doing that
SO happy this has gone well for you Andrew. Thank you for letting us in on your journey for the D-Term! Congratulations and thank you for all the inspiration you've given this physics undergraduate over the years!
P.S. Would love to see that Laplace Transform video :)
So good Andrew. We are very proud of you!
Definitely do the problem video❤
I love how smart you are. Been watching your whole journey so far. Glad you stuck it out and put in all the hard work to get there.
I really don't think it's intelligence. Do anything for a few years and tell me you don't get good at it🙌 but thank you!
It's great seeing another video. On my junior year now in Physics at UW and your videos are such an inspiration. Can't wait for the future!
Small world I got rejected from there! (no hard feelings :')) Junior year I feel is where it really starts getting fun and into the weeds! Best of luck!
Super interested in hearing more about your paper in the future! Best of luck finishing your graduate journey out! (I think it'd be interesting to hear a full retrospective from start of grad school to graduation, which I'm sure you're already planning)
I was watching you when studying electrical theory. You and papa Flammy inspired my maths!
Keep going, man. I'm doing my PhD in Russia and really love ur technical videos with all technical details and formulas. It would be great if you continue to show more such aspect of ur work
I would love seeing new uploads on the stuff you’re learning! Not because I’ll be able to understand any of it, but because it’ll give me more fancy words to look forward to recognizing. Started watching your videos in high school, and as an undergrad I’m finally starting to learn some of the stuff I saw you talk about years ago.
Love to hear it!
It’s awesome seeing updates like this. You inspired me to pursue physics as a degree way back when and now we’re both working for LANL as grad students :)
That’s too cool!
A 7 minute ad segment is the most physics student thing I've ever seen lol. Great to see you again Andrew, looking forward to the paper!
I started following you when I started my undergrad degree, and now I will be starting my grad school! You have been an inspiration, thank you!
Yo Andrew, Wish you well on your tough journey. I'm taking Biological Physics next semester and apparently it's all thermodynamics but I'm kind-a excited ngl. I'm doing a Physics minor because of your and it's been tough but also very cool at the same time.
You’re the best Andrew!
Good to hear from you
How ironic! I literally came to Andrew's channel last night to see if he had posted and I ended up rewatching his video from 8 months ago for the 3rd time haha. Very excited to watch this one!
Oh the sorry for the long recap lol!
all through thanksgiving i was watching all your videos and not even a week later there’s a new upload 😁😁😁😁😁😁😁😁😁😁😁
Great news. I hope that everything progresses like this. And yes please share more videos like this one.
Thanks a lot! And will do
@@AndrewDotsonvideos i hope this is teasing a new video
Happy to see you upload again. Technical videos are cool. I know most of your demographics once upon a time is high schoolers and early university kids, I would enjoy more technical content if you have the time.
oh my god Andrew you uploaded! i have to say I love your content, its getting me through my undergrad in physics and hope to do a phd like you :)
Thank you! Best of luck with your physics journey!
Andrew I want to thank you for making these videos. 5 years ago, right before I went to high school, I got recommended your videos and I enjoyed seeing your content (partly because you went to odu, which was 5 minutes down the road from where I lived). And now i’m taking my first college final for physics 1 in 2 weeks, so thanks for making me a bit more interested in physics
Thanks for giving physics a chance! Glad I didnt ruin it for ya😆
You're back! I missed you bro!
Good to be back!
When I started watching your stuff I hadn't gone to university yet, and here we are a good 5 years later and I'm almost done with my graduate degree. God damn. Time flies.
Thanks for the video and update. This stuff sounds so interesting and exciting! You are definitely part of the reason I choose to do a master's in Theoretical! I am doing GR next semester and I can't wait. Unfortunately, while I was also burning to take QFT, the level at which they started the course already assumed previous (well established) knowledge of RQM, Path Integrals, Group Theory and introductory QFT.... Essentially I had to take QFT before taking QFT.. :')
Never done ANY of these topics before.. the starting level was insanely difficult for me; I couldn't keep up at all and eventually ended up dropping it for another class... That is by far the saddest I've been academically, ever!! Was so excited to finally take QFT.
It's so damn annoying/frustrating that they assume that I've taken master's degree-level classes in my undergrad.... sucks.
Don't think it's something I can teach myself either... Don't even know where to start..
Even half way through my MSc, I feel like I'm so far behind compared to what you had learned by this point in your career!
Anyways, your research sounds super duper interesting, keep us updated please! :)
That is really bizarre to me that a QFT course would assume prerequisite knowledge of things like path integrals... There's one person who enjoyed doing non-relativistic quantum using path integrals, and it was Feynman lol(half joking). It's so much harder to do QM that way, in my opinion. Don't get me wrong, absolutely has its use, but they aren't easy (try just solving the harmonic oscillator in path integral formalism if you think you may disagree). Doesn't make sense to me why that would be a pre req unless you're not taking part 1 of a qft course.
Group theory is just weird at first, but also should not be a pre req. I get quantum professors in undergrad may have said "SU(2)" when teaching angular momentum, but that usually means nothing to anyone at that stage. Schwartz would be a good place to start, it's my favorite QFT book (no sponsor). Does a good job imo on all the topics you mentioned. Weinberg is also great. Peskin is great because your advisor has it.
This is pretty typical, unfortunately. No matter how much QFT you learn, there will always be someone who thinks there's no excuse not to fully understand a particular niche sub-topic relevant for their own research. Try not to take it hard, there's just not really a consensus on what everyone should know regarding QFT. Probably a good thing to start learning it at your own pace!
If you really need an exclusively path-integral approach to QFT, van Baal is what I used when I had to learn them. If I remember correctly, though, it may have assumed the reader already knew 2nd quantization (it at least compares steps to what you would do in 2nd quantization). Hope this helps!
Congrats!
Thank you!
love the gd pfp
We all missed you bro! Glad you're still going strong! Good luck!
Thanks a lot!
I've been watching your vids since 1st year undergrad. It's really been a journey dude. Now I am beginning my own PhD in the field of control theory. It'd be great seeing you land a professor position after I am done 😁
Should call it the big D-term. Also, awesome job! Happy to hear your research has reached its goal.
I started watching your videos about 5 years ago. At the time I was in my final year of highschool. I am about to start a course on QCD, its crazy how things can progress in such a short amount of time... Thanks for all the inspiration, tips and great videos. Good luck!
Wow a full course on QCD is a treat. Best of luck and thank you!
What book/lecture notes will the course be using for QCD?
Glad to see you back!
Since you asked in this video, I would love to see a video where you get a bit more technical about your research or where you solve an exercise related to your research. 😊
Awesome, I'll probably go through that exercise in schwartz I talked about. And you bet I'll make videos on the actual project calculation once it's submitted!
That's great, I am looking forward to it! Thank you in advance!@@AndrewDotsonvideos
I am using a lot of ChPT for my research so seeing SCET videos would be pretty neat for my education
Hey man, i just binge watched you channel. ❤ The videos.
Would love an update about the paper
He's Back!
I've been watching your videos since middle school probably and I'm in college now studying chemistry and math and you're basically everything I aspire to be lol. I think you've been a huuuuuge driving force in my life and what made me really sure that I want to dedicate my life to learning. I don't understand much of what you're saying but bit by bit I'm starting to understand more and more and it's so cool. Thank you for being you!!!
Wow thank you for the kind words. I’ve definitely made a lot of mistakes along my path so far, most of which were avoidable. Just be smarter than me, it shouldn’t be hard to do😂 chemistry and math is a cool mix, best of luck!
@@AndrewDotsonvideos Haha thank you! And I mean you've gotten this far with (what I see as) amazing success and opportunities so all those mistakes were definitely not as mistake-y as they may seem! I'm excited to see where this mix of interests takes me! 😄
Christmas came early with an upload
my mood went higher than a dirac delta function when i saw the new video 🙏
You should check out the envelope function interpretation of renormalization group approaches. It's a take on RG in multiple scale analysis that can be used for more arbitrary ODEs/PDEs, and gives me some more intuition on what RG does.
Thank you for making these videos, Andrew! I am currently transferring to start as an undergrad to Santa Cruz and your videos give me the motivation I need to pursue my education in physics! Though I do not know which field I want to stick to yet (those being astrophysics and particle physics), I will be watching your past videos with glee when I finally understand them!
That's exciting! There's actually a fair amount of overlap between astrophysics and particle physics in nuclear physics. People treating neutron stars as one big quantum mechanical system and find the equation of state etc. No rush on deciding, you can even change your mind in gradschool. Just try things out and see what excites you to learn about! All the best!
update:
im starting my first semester this fall, and going to be taking two physics classes (intro phys 4 and mathematical methods in physics) at once. its been my literal dream to do that, and im super excited. hoping to binge your tensor series along with 3b1b's linear algebra series this summer!
hi, good to see u alive
Congrats my g. You continue to be the blueprint
Follow me, this is the way. *walks into traffic*
What up dude. Lol! Your reasoning and logic is funny af! KEEP KILLIN IT DUDE 🤙
congrats man😃
Great job Andrew for coming up with that result! I have been studying quantum field theory for my own exams, and boy, is it complicated... Kudos to you! You could do a series titled "Layman's Quantum Field Theory"!
If I can think of a way to pull that off😂 sounds like it would need better animating skills than I have, I’m not so good at withholding detail lol
I would be sure to watch it - probably some other people would be interested! And you can definitely pull it off - you’re great at explaining stuff!
What a brilliant mind you have.
Just when we needed him most
I would love to see an example of you solving the problem!
Hi andrew! I have no idea what you talking about. but I want to thank you for your funny videos in the last years. I am also at the end of my phd, at least I spent the last days and nights with the review answers to my paper. I am working on XPs measurements on batteries. However I studied in Göttingen so I am connected to physics. At least I think so. Anyway thank you land good luck
Oh shit, new video!
Andrew, I came across your videos a very long time ago and I've been cheering for you ever since. We've had a few nice exchanges in the comments of some of your older videos. I am thrilled that it looks like you are closing in on your dissertation. I also wanted to say that back in the day, I was once working on a ridiculous SUSY calculation. I worked on the terms in different colors so as not to mess them up. Somewhere about two hundred pages in, I came to a result that I knew had to be garbage. Some sub part of a sub part that should have eventually cancelled because of symmetry wasn't going to. I spent about a week looking for my error. I showed my advisor. He spent about an hour looking through my work and found that I had failed to copy a dot on a dotted index (from one line to the next) many, many pages back. I was at least able to get out of his office before I felt the need to cry. Also.. LaTex... We've all been there.
I'm glad to be closing in as well! Are you still doing physics? I still don't own a landau book after your comment (partially kidding).
That's amazing, I would have cried. 200 pages.... sounds like SUSY could use a bit more symmetry🤣
Ohhh... I did cry. Just not in front of Jim. Also, sort of the point was that because I flubbed that dot, a symmetry I was banking on eventually exploiting hadn't shown up. Field theory taught me to mind my "i"s and minus signs more than ever. SUSY taught me to mind dots and dashes more than ever. Here's a pinky promise. If I die without my daughter wanting them, I will continue the chain and bequeath my Landau's to you. Right now though, my kid, G-d love and help her, loves physics.@@AndrewDotsonvideos
Congrats and best of luck. I'm an engineering undergraduate doing research in machine learning. It's been a lot to take in and I feel like I've made zero progress. Can't imagine how you felt with your research journey.
As someone who has watched your videos since you were at ODU, I can't help but notice a piece of jewelry on your left hand...maybe I missed it in one of your old videos but if not...congratulations on that as well as all your progress in grad school.
NEW ANDREW LORE! Congrats, man!
The time evolution operator of your beard is how we track the most previous video drop
The operator must describe color exchange (it's getting grey)
@@AndrewDotsonvideos F in the chat for conservation of beard color charge. Effective Beard Theory on arXiv when?
Hope you are doing well
Hiiii. Gotta check in every few months 😂
wow! you're back 🎉!! how have been all this while? good to see you in a fresh video! looks like you've got engaged 🧐
6 months ago i finally decided to drop out of my physics undergrad. I'm still friends with some of the doctors there so i've been able to do research with them, and do what i actually love. Doing research. Now that I'm learning the subjects of the major at my own pace and resources I'm definitely way happier than ever before.
I wished i could have done my PhD, but well as a professor told me "sadly the major is made to be boring, everything that would make you feel complete is in gradschool" life was being drained from me. In the time i was in my major i had to take multiple breaks because i felt completely unmotivated to even wake up, depression was hitting me and my future.
I love physics and math, but i definitely hate college or at least my college, but since that experience every time i think about taking my courses online i feel nauseous (literally reading the documents makes me sick).
With all of this said. I'm happy you had the time at hand to give us an update on your research. You are a great inspiration and your videos have helped me even when I'm not a physics major anymore. Take care Andrew.
I have an end term exam on graduate classical mechanics tomorrow, and I was watching your grad school Phlogs to relief some stress! Then this video dropped 😂😂... confidence boosted ❤. Also best of luck for your paper Andrew!
Good luck! I remember just picking a formalism (lagrangian) and ignoring everything else and just made sure I could at least solve problems using the ELE’s😂 even works for non conservative forces if you use Lagrange multipliers:)
Yup, I definitely remember that advice of yours😃! Although my professor focuses more towards Hamiltonian formalism, Hamilton Jacobi and Action angles... I think I did decently well. Classical mechanics gets really tedious with the algebra (unlike QM, or maybe that's just me🥲)
I know it’s been a long time since an upload, but Andrew, I just want to say that your channel has been an inspiration for me in my pursuit of physics and I was recently admitted to a physics PhD program and intend to study theoretical particle physics. Thank you!
Before I got into my masters I was watching your videos thinking "Pfft what a chump being in academia is way easier than what he says because I am a mechanical engineer (obligatory)"
but now a year and a quarter in I JUST GOT MY ADVISOR TO ACCEPT THE TITLE! I didn't even get to do anything yet, good luck my friend, your experiences motivate us all to move forward, because at the end of the day if I am feeling down I will remember that this dude is doing the same thing but in theoretical physics so I can suck it up.
Andrew i just wanna say i wanna become like you one day man its been my dream since a young kid to become a quantum physicist
and im already learning alot of new things at this age right now im in 10th grade wish me luck and goodluck with your research and work
man same, im also in 10th grade and im a physics enthusiast. But i feel so stupid when im seing these numbers
@nonsensetalk7917 same bro I know that this stuff is complex and I think alot about how ami gonna comprehend it
But then I remembered how stupid I used to be when my brain was introduced to equations
So I will use that as a tool to dig into the stuff and deeply understand them just like the basics
Background looking like the Monty Hall Problem 😂
Best of luck!
How intensive is the review process for a paper like this?
@@shmeblord It can be terrible, it can be reasonable. I think our calculation and claims are conservative enough to where we shouldn't have too much trouble in the review process.
@AndrewDotsonvideos that's great to hear. I'm in a completely different field (Cellular and Molecular Biology), but I find your videos fascinating and physics has always been something I wonder about pursuing. Submitting a paper that you feel confident in always feels good, but the initial review is sometimes humbling from what I've been told... you got this!
Oily Macaroni Enjoyer makes a comeback! Proud of you my man! The paper's gonna be epic! Great work!!
(Sent while learning about 8 types of herpes 😳 Sketchy micro ftw)
THE LEGEND POSTS
I love how the more experienced I get as a physics undergrad, the more I understand of your videos, at least your skits. QFT is a bit out of my reach as of now though, lmao
Before you know it you’ll be leaving comments correcting my lecture videos 😂🙌🏻
I really hope you intended for there to be a subtle pun in the title. Great job D-termining!
The king has returned
Would you be able to make a video showing how you make writing things in latex more efficient with those shortcut commands. I’ve only been using latex for a semester and everything takes me forever cause I’m still pretty new to it. I’ve been watching since sophomore year of high school and I love how educational and helpful ur content has been! Keep it up!
bouta start the physics part of undergrad next semester, and with any luck, ill have my own number of years of solving a new problem succeeding that
I'm a second year in my PhD program for physics and cannot wait for the moment when I get to be at this point.
It's THE return
Siiiick! Had an interview with XCP at LANL this summer. Got rejected.
I’d love to see the problem solved in a video 👍