Recent content by ZetaOfThree

  1. ZetaOfThree

    Prerequisites for holography in condensed matter

    What are prerequisite courses/topics to better understand holography as applied to strongly correlated condensed matter systems? Any references/textbooks would be appreciated. I'm doing research on this topic and would like my understanding to improve. Thanks very much
  2. ZetaOfThree

    A really cool website for Physics competitions

    I'm not sure. I have only submitted one problem and I haven't been given it yet. I've participated in about 8 competitions, most of them with myself since the site is still small.
  3. ZetaOfThree

    A really cool website for Physics competitions

    I found a really cool website where you can have physics problem solving competitions with others. It's brand new and it's called PhyKings: www.phykings.com. You can start a competition, pick the number of players, the length of the problem, the type of problem, and once everyone joins, you...
  4. ZetaOfThree

    Need to learn some electrochemistry fast

    I am an undergraduate who recently started on a research project involving the dielectric properties of colloidal suspensions. Though my physics background is strong, my chemistry background is weak and I would like to learn about the following concepts relevant to my research: 1. Electrode...
  5. ZetaOfThree

    Challenging Integrals in Calculus 1-2: Expand Your Problem-Solving Skills!

    You should try the integral and find out for yourself!
  6. ZetaOfThree

    Challenging Integrals in Calculus 1-2: Expand Your Problem-Solving Skills!

    Try this one $$\int_{0}^{\pi/2}{ dx \over {1+\tan^{2015}{x}}}$$
  7. ZetaOfThree

    Current research on protein folding

    The results in that paper seem quite impressive. But what is the future of such simulations? Could they be used to map trajectories that are common to all proteins in phase space (the energy landscape)?
  8. ZetaOfThree

    V.I. Arnol'd's Mathematical Trivium

    Nice! You should try some of the problems in Trivium. There some similar themed problems.
  9. ZetaOfThree

    V.I. Arnol'd's Mathematical Trivium

    Check out this collection of mathematics problems, published in 1991, by V.I. Arnol'd called "A Mathematical Trivium". Here's the link: http://www.math.upenn.edu/Arnold/Arnold-Trivium-1991.pdf Apparently, these problems are meant to be solvable by the end of your undergraduate (math) education...
  10. ZetaOfThree

    Tension of a rope on a cone, fallacious solution

    I know what's wrong with my alternative solution. The component of the normal force that opposes ##2T## is a sum of small normal forces acting in the direction opposite to ##2T##, which act on each element of the rope perpendicular to the surface of the cone. The force that opposes ##2T## can be...
  11. ZetaOfThree

    Tension of a rope on a cone, fallacious solution

    Homework Statement A rope of mass ##m## forming a circle is placed over a smooth round cone with half angle ##\theta##. Find the tension in the rope. Homework Equations ##\sum{F}=0## The Attempt at a Solution I know how to solve the problem, but I have another way that I think should work but...
  12. ZetaOfThree

    Associated Legendre polynomials

    I think you've made an error in your calculation. If we plug in ##\ell = 1## and ##m=1##, we have $$P^{1}_{1}={(-1)^1 \over 2 \cdot 1!} (1-x^2)^{1/2} \cdot {d^2 \over dx^2}(x^2-1)$$ Do you have that much? It should be easy to simplify that, then plug in ## x=\cos{\theta}##.
  13. ZetaOfThree

    Associated Legendre polynomials

    We won't do the calculation for you. Why can't you do it yourself? What part of it doesn't make sense to you?
  14. ZetaOfThree

    Suggest undergrad Thermal/Stat book

    You posted this in the wrong forum. There is a forum for textbook discussion at the top of the forum list. From my experience, there aren't very many great thermo/stat mech books at the undergrad level. But I've heard Fundamentals of Statistical and Thermal Physics by Reif is a good text. I...
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