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Aly

Aly

has 28 followers and is following 23 people

じゃ、読むがだいすきです～　キキキ ^x^
Hello hello~
I'm a full-time student in the bay area pursuing a BS in engineering physics in preparation for astrophysics in grad school. When I'm not studying (which is kind of rare, in a pathetic sort of way...), I'm reading!

I actually just came back to Shelfari after a long hiatus, so now that I'm out... more »
  • Berkeley, CA, USA
  • member since October 13, 2009

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Aly’s last login was Sunday, December 5, 2010.

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Public Notes

  • TJ P

    TJ P says

    こんにちは、アーリーさん~　あけましておめでとうございます！　さいきん　どう　ですか？ Sorry it took so long to get back.

    So, I only made it a little over half way through "The Girl with the Dragon Tattoo" it was SO boring to me.. I think it was about to pick up.. maybe.. but I just gave up for now. lol. I still plan to finish it someday though, it's not a bad book, just SLOW.

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    Ah, nice! Thanks I hope they'll accept me. Yeah my fiancee loves Chico and really wants to live there so I'm just following along. Studying in the SFBay should open some opportunities for me down in Silicon Valley too. No need to be so humble, you are pretty awesome at proofs. I don't expect anything less from a genius engineer-in-the-making though lol.:) Hope you're enjoying your break.

    posted 1 year ago. ( send a note )
  • Boyejo Ayo

    Boyejo Ayo says

    And that is very correct. Have you ever used anger as an avenue to do something positive before? I've learnt a lesson that anger can really help us to focus on good stuffs if the energy produced is channeled into something good. What book are you reading now?

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    Hey how do you know Olsson? & Yeah as for the CS inequality proof we did decide to go the "complicated route" for fun. However we did consider a Minkowski derivation. It is very aesthetically pleasing to the eye I agree. I'm assuming all of your brackets are ltet.. you write a mean proof. But thanks! Nice to have your opinion on it, esp. since I plan on applying to your school soon (just waiting for my fiancee to grad, shes up at Chico).

    posted 1 year ago. ( send a note )
  • Boyejo Ayo

    Boyejo Ayo says

    Well this is very funny because I kind of have different reasons. I first started in IT in 2002 because of my curiosity but my continuity in this field is geared by anger. I get angry when I discover that we can do so much but we are not maximizing the resources we have. I thing I will really love to chat with you as a typical physics/engineering/astronomy girl. Are you on yahoo messenger? PLEASE

    posted 1 year ago. ( send a note )
  • Boyejo Ayo

    Boyejo Ayo says

    Yeah and that talk more about my kind of addiction. I'm a typical IT guy and you?

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    Ah, n/p. I misread, but your explanation makes more sense now. That's the confusing thing about qft, there are so many meanings for so many different things. I met Olsson back in '04 during college. Figured you'd catch on to that though lol. Sure get back to me on the paper, would love to know what you think of it.

    posted 1 year ago. ( send a note )
  • Anthony H

    Anthony H says

    Hi brainy. I hope it's raining! :p

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    You take a good approach. I agree with you for the most part. Get around to P&S for sure, I bet you might develop even greater ideas. As for delta functions: In ordinary QM, if we find a particle at x0, we would assign to it a wavefunction |x0] = delta(x-x0). You are aware of this, but I wanted to emphasize this point, because in QFT, delta(x-x0) is not a vector in Hilbert space and we are forced to choose |X0]. (Actually choosing a delta function is already an idealization in ordinary QM and we would choose a very narrow wavepackage.) This means we are simply not able to produce a fully localized single particle state in QFT. Honestly, I do not have an idea how these |X] states look like. But again, you are mathematically sound and your approach is spot on.

    I imagine Smoot is a bit of a mini-celeb on campus. Heard he also won the $1M grand prize on a gameshow. Incredible. Good luck on getting in to Caltech! You are brilliant, there's no way you won't get in. It's too bad attending your alma mater is discouraged, but it's not the end of the world. You'll do fine either way..

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    Nice job Aly, I'm impressed.. Your calculations check out flawlessly. But as Zee remarks, in the limit epsilon to zero, this amounts to omega_k to omega_k-iepsilon (expanding a square root) and this is just one of those cases that you are trying to exclude. I admit that I have always wondered why it is done this way for the KG propagator as opposed to the massless propagator. There seems to be no good reason for it, besides being slightly easier to write down (only one epsilon term, no binomial decomposition). However I believe that, ultimately, Weinberg's approach is probably the most logically sound from first principles (assuming you keep following things through several chapters), but it does of course somewhat sweep things under the rug a tiny bit, as it deals with the S-matrix per se, which has the wonderful property of blurring all these messy details out.

    Nice graduate student crowd. No professors yet but I like Smoot's work in physics. He seems pretty cool for a Nobel laureate. So are you planning to study theoretical astrophysics? You seem to know a lot of it already. And what graduate schools are you applying to?

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    Whoa. Heavy courseload! I doubled in Physics and Math for my undergraduate studies, and that was already difficult. Good for you. I am applying to Berkeley for graduate school. Is the competition over there as fierce as everyone makes it out to be?

    Zee was a good read... I find it interesting that an undergraduate like yourself is reading about advanced QFT though, lol. You seem to be well-versed in this subject so allow me to speak technically; Zee tends to use approximations over analysis (in terms of causality), so usage of numerical simulations of KG propagations would supplement this well. This way, there is no propagation outside of the light cone. Zee's approximation leads to the exp(-mr) light cone leaking. In comparison, Feynman calculates a sign (a factor of 1/2 and the Hankel function obtained from his tables) which is the Bessel equivalent of exp(ix)=cos(x)+isin(x) - Feynman's propagation outside of the light cone. Weinberg and Peskin &Schroeder interpret this in a similar "approximation" fashion.

    posted 1 year ago. ( send a note )
  • Matt S

    Matt S says

    'Ello Aly. I was adding books to my shelf and noticed that you had a lot of books in common with me, so I added you. I hope you don't mind. Are you studying engineering at UCB? What classes are you taking at the moment? Engineering physics sounds cool, kinda curious about what you learn.

    Matt

    posted 1 year ago. ( send a note )
  • Andrew E. Kaufman/Author, Suspense Thrillers

    Andrew E. Kaufman/Author, Suspense Thrillers says

    Thanks, Aly. Hope you like :)

    posted 1 year ago. ( send a note )
  • Gee s

    Gee s says

    you should just own a hotpocket factory and have the roller belt go directly to my fridge! or invent a hotpocket that keeps growing back as you eat it and stays at the perfect temperature.

    posted 1 year ago. ( send a note )
  • Anthony H

    Anthony H says

    Hi, A.

    - A

    :)

    posted 1 year ago. ( send a note )
  • M

    M says

    Are you partly Chinese? And how did you come to love astronomy?

    posted 1 year ago. ( send a note )
  • Gee s

    Gee s says

    i have a few things by binary star but i don't usually listen to em. for finding it the way i do its usually easier to search by album rather than by song, so if you know the album you would just search artist (i.e. Presto), album (mind is myth mixtape) blogspot. usually can get some downloads that way though for that album presto had a link on myspace i think for the free download, and his second album is called pen-game which i believe you can get off Datpiff.com

    posted 1 year ago. ( send a note )
  • M

    M says

    Hi Aly,

    Wow, I even had to look up what GRBs were, and you know tons on the subject! You are awesome. Good luck on your aspirations. Nah,I'm not really from Tonga, I'mfrom plain Canada.... although I was originally from the Philippines. Let's just say that my mind resides in Tonga half of its existence... it can especially be found just lazing around in Tonga's warm waters whenever physical education class [enforced, gymnasium-like, as Einstein would have hated it] is beginning.

    posted 1 year ago. ( send a note )
  • Veeyah

    Veeyah says

    Cool thing! Hahaha. I'll send you one as soon as I get it done. :)). Wow. Those books sound pretty cool! Thanks!

    posted 1 year ago. ( send a note )
  • Gee s

    Gee s says

    also the lava cakes google image shows is different than what i made, mine looked like this http://1.bp.blogspot.com/_wGqV4pgUA7E/S1Z4gCEoEdI/AAAAAAAAA38/ExfIk01iYc8/s400/P1010198.JPG
    only inside was hallowed out and full of nutella

    posted 1 year ago. ( send a note )

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