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An Introduction to Quantum Field Theory

126 点作者 simulate将近 10 年前

5 条评论

danbruc将近 10 年前
Obligatory link for those that want to go a bit deeper into the rabbit hole - The Theoretical Minimum, a collection of physics lecture by Leonard Susskind.<p><a href="http:&#x2F;&#x2F;theoreticalminimum.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;theoreticalminimum.com&#x2F;</a>
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timelined将近 10 年前
This is a pretty good introduction. I highly recommend Feynman&#x27;s book &quot;QED: The Strange Theory of Light and Matter&quot; as an excellent in-depth work that does not sacrifice accuracy for the sake of making difficult ideas understandable. It is both very clear to the layperson and accurate to the physics.
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613style将近 10 年前
This is a great article. One thing I don&#x27;t understand: the author says:<p>&gt; If you want to create something heavy like the Higgs boson, you have to hit the &gt; Higgs field with a sufficiently large (and sufficiently concentrated) burst of &gt; energy to give the field the necessary one quantum of energy.)<p>So when the LHC creates a spike of energy at a point large enough to create a Higgs boson, why does that energy interact with the Higgs field and get &quot;used up&quot; by other fields? In other words, if Higgs requires 100 units of energy and electrons require 1, why do we get 1 Higgs boson and not 100 electrons?
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danbruc将近 10 年前
Are quantum fields actual elements of reality or just a convenient mathematical tool to deal with many particle systems?<p>One of the questions I am struggling to find a satisfying answer for for quite some time. Depends on whom you ask? We can&#x27;t tell because both ways of thinking are completely equivalent? Fields are real! No, they are just a tool! Are there issues with real fields forming a preferred reference frame? Does somebody know? (My current understanding seems to suggest that fields are just a tool.)
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mudil将近 10 年前
Ether is back!<p>Well, somewhat. Now it&#x27;s in the form of Higgs field. Unlike ether, Higgs field does not interact with uniformly moving particles, only those that are accelerating.<p>Here&#x27;s a great book I just recently listened: <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;The-Black-Hole-War-Mechanics&#x2F;dp&#x2F;0316016411" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;The-Black-Hole-War-Mechanics&#x2F;dp&#x2F;031601...</a><p>It&#x27;s by Leonard Susskind from Stanford. The thoughts experiments in the book are just terrific. Loved it.
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