Loop quantum gravity Definition and 107 Threads

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  1. R

    Nuts and Bolts Books on Strings, Branes and/or Loop Quantum Gravity

    Does anyone know of any good problem solving books on strings, branes and/or loop quantum qravity? I am looking for something that has a lot of actual solved problems, something in the spirit of Schaum's Outline Series, Zetteli's book on QM, or Peskin and Schroeder's book on QFT. Any...
  2. marcus

    Development of Loop Quantum Gravity

    This is a thread for collective learning of the classical (i.e. non-quantum) theory of Gravity-----which means General Relativity. Reference material is Chapter 2 (pages 21-71) of Rovelli's book "Quantum Gravity" and John Baez GR Tutorial The title of Rovelli's book notwithstanding, the...
  3. marcus

    Spin networks in Loop Quantum Gravity

    LQG is based on a smooth compact manifold M The configuration space is A the connections on M: by choice here we use SO(3) connections----the smooth rotation-valued 1-forms on M. The connections represent all the possible configurations of gravity, or curvature, on the manifold-----in other...
  4. marcus

    The rotations, SO(3), in Loop Quantum Gravity

    this is a collective effort to hit the easy parts of LQG for anyone who has shown an interest in this approach to quantum gravity to add constructive input Lubos Motl has been a critic of LQG and has just published a clear presentation of it, plus made an important contribution to and he...
  5. marcus

    The connection in Loop Quantum Gravity

    In the Physics forum, jby started a LQG thread which at one point included some discussion of Connections. It might be helpful to have a thread focused on the connection which is taking over the central role from the metric for some purposes. GR used to be the study of the metric on a smooth...
  6. J

    What are spin networks and how do they give rise to space and matter?

    I don't know if I've come to the right place. I've posted this in the theoretical physics forum and yet to get a reply... I recently read this article http://www.sciam.com/article.cfm?ar...F71809EC588EEDF and came across this thing called spin network. Anyone with further explanation on...
  7. E

    Loop Dreams Loop Quantum Gravity Dreams that is

    Loop Dreams... Loop Quantum Gravity Dreams that is... So, many people ask me if they have what it takes to make it in the world of academic physics. Here's my little survey for helping people find out if they have the right stuff. How old are you? If you answered >= 35, and you're not...
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