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MathPrinceps's profile
Laurens Gunnarsen
Laurens Gunnarsen
Laurens Gunnarsen
@MathPrinceps

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Laurens Gunnarsen

@MathPrinceps

Mathematical physicist and mentor to mathematically talented youth. Talent is that which bridges the gap between what can be taught and what must be learned.

Joined June 2012

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    1. Laurens Gunnarsen‏ @MathPrinceps 8 Feb 2019
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      Replying to @johncarlosbaez @wtgowers @skdh

      In the long run, I'm cautiously pessimistic. The problems here are now clear enough to identify as fundamental; we'll need something vastly more than ingenuity and optimism to get past them. And, worst of all, it seems very doubtful whether we'll ever know if we've got it right.

      1 reply 0 retweets 1 like
    2. John Carlos Baez‏ @johncarlosbaez 8 Feb 2019
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      Replying to @MathPrinceps @wtgowers @skdh

      The existing theories of quantum gravity are so bad that it's very easy for me to imagine that someday people will come up with a vastly better one... and we'll all say "Duh! Why didn't anyone think of that sooner?"

      2 replies 0 retweets 4 likes
    3. Chris Papavasiliou‏ @ChrisPapavasili 9 Feb 2019
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      Replying to @johncarlosbaez @MathPrinceps and

      We are SO constrained by the scient. authorities of the "fathers" of EM, the quantum, and gravitation, that we don't investigate critically enough the phys-math foundations of their theories. Having so many fundamental questions unanswered, the times are ripe to do it.

      1 reply 0 retweets 0 likes
    4. Timothy Gowers‏ @wtgowers 9 Feb 2019
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      Replying to @ChrisPapavasili @johncarlosbaez and

      I wonder about that too. Is there an account of the standard model suitable for a mathematically trained non-expert that doesn't just say what it is but also gives you a good idea of why it was inevitable, given the experimental data, that we would come up with it?

      5 replies 0 retweets 4 likes
    5. Sabine Hossenfelder‏Verified account @skdh 9 Feb 2019
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      Replying to @wtgowers @ChrisPapavasili and

      Best way to get to the standard model for the mathematically inclined I'd say is follow the path of works by Weinberg and 't Hooft. Unfortunately, I don't know of a compilation that actually contains equations. But this books may be a good starting point: https://www.amazon.com/Search-Ultimate-Building-Blocks-Hooft/dp/0521578833 …

      2 replies 0 retweets 6 likes
    6. Joseph Hucks‏ @JosephHucks 10 Feb 2019
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      Replying to @skdh @wtgowers and

      I've always enjoyed Huang's book: QUARKS, LEPTONS AND GAUGE FIELDS (2ND EDITION)https://www.amazon.com/dp/9810206607/ref=cm_sw_r_cp_apa_i_YOfyCbT7VJ0T7 …

      2 replies 0 retweets 4 likes
    7. John Carlos Baez‏ @johncarlosbaez 10 Feb 2019
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      Replying to @JosephHucks @skdh and

      I think that book is *great* for getting the idea of the Standard Model without sinking into all the complicated depths of quantum field theory. I love it. It's on my list of favorite books.

      1 reply 0 retweets 2 likes
    8. Joseph Hucks‏ @JosephHucks 10 Feb 2019
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      Replying to @johncarlosbaez @skdh and

      Yes, I love it too. I like to flip through it occasionally as a refresher. The axial anomaly and the QCD theta puzzle are especially interesting. He does a good job on the Standard Model. I talked to him briefly when I was at MIT. Seemed like a nice guy.

      1 reply 0 retweets 2 likes
    9. Laurens Gunnarsen‏ @MathPrinceps 10 Feb 2019
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      Replying to @JosephHucks @johncarlosbaez and

      Thank you very much, Dr Hucks, for calling my attention to this reference. Any opinions on how it compares with Chris Quigg's book?

      1 reply 0 retweets 0 likes
    10. Joseph Hucks‏ @JosephHucks 10 Feb 2019
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      Replying to @MathPrinceps @johncarlosbaez and

      Hi, please call me Joe! I think Quigg's book is a little more technical, with more emphasis on computations, plus he covers GUTs to a small extent. I find Huang's writing style and notation easier to read. With QFT books, it's good to have several to look at.

      1 reply 0 retweets 2 likes
      Laurens Gunnarsen‏ @MathPrinceps 10 Feb 2019
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      Replying to @JosephHucks @johncarlosbaez and

      Thanks, Joe. I strongly agree that one really just can't learn quantum field theory adequately from a single textbook -- not even one in three large volumes, like Weinberg's. The subject is just too vast and various, and the questions it raises too intricate and subtle.

      6:22 PM - 10 Feb 2019
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      • John Carlos Baez
      2 replies 0 retweets 1 like
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        2. John Carlos Baez‏ @johncarlosbaez 10 Feb 2019
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          Replying to @MathPrinceps @JosephHucks and

          While it's true that quantum field theory is very hard, mainly because nobody fully understands it yet, I'm afraid stressing this point too much may dissuade @wtgowers from learning more about how people came up with the Standard Model.

          1 reply 0 retweets 0 likes
        3. John Carlos Baez‏ @johncarlosbaez 10 Feb 2019
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          Replying to @johncarlosbaez @MathPrinceps and

          There's a lot of fun to be had by learning the history. I'd start with this: Robert P. Crease and Charles C. Mann, "The Second Creation: Makers of the Revolution in Twentieth-Century Physics".https://www.amazon.com/Second-Creation-Revolution-Twentieth-Century-Physics/dp/0813521777 …

          3 replies 1 retweet 3 likes
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        1. Joseph Hucks‏ @JosephHucks 10 Feb 2019
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          Replying to @MathPrinceps @johncarlosbaez and

          There are better books out there now, though. 36 or so years ago when I first started learning QFT the situation was much worse. It's like each book shows you QFT from a different angle.

          0 replies 0 retweets 0 likes
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