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    The relation between entropy and probability at quantum levelu

    Hi all, I have been reading some new stuff recently on the holographic principal and I have a question, I seem to understand that entropy and probability must have some relation to each other, I am not sure what exactly but it seems like they just do, can anyone please explain what it is? Now...
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    A bigger structure than multiverse

    Hi all, Recently there was a paper out by Susskind et. al on the topological phases of eternal inflation. We know of eternal inflation to populate our multiverse but in that paper Susskind talks about different kinds of eternal inflation, if one pays close attention to those words, does that...
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    Holographic disturbance in 3-dimensional calculations leading to CP Voilation

    Comrades, "The Holographic Interferometer, or Holometer, is a machine designed to test a particular idea about how space, time, matter, and energy behave on the very smallest scales." Its made to check up on the fuzziness of space that might come interfere with the propagation of light, so...
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    AdS/CFT correspondence and the cosmological constant

    Hi all, From what I understand AdS/CFT correspondence has been one of the most researched areas in string theory. I'd like to know if there has been any work done to relate this duality to the cosmological constant. As unrelated as they may sound, the expansion of space will change the...
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    String treatment of the quantum graphity model

    Hi all, I recently read about the quantum graphity model that was proposed by Lee Smolin et. al. The model had some really nice features but can anyone tell me if a similar string based model has been proposed? I know that string net condensation does something similar but has a full model...
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    T-duality and others

    Hi all, I found this description of T-duality [1] which is fairly technical and I don't get it =) so can anyone please explain what T-duality is? I was also reading something on the holographic principal and from what I know about T-duality, one of its implications is that space and time...
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    LQC and string theory combined in one theory

    Hi all, I have been reading a bit upon LQC and from what I understand this theory of QG makes some fundamentally different assumptions from string theory but has there any work been done that relates these two theories? I tried to look on google but no good results turned up there, ergo, I...
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    The cause behind inflation

    Hi all, I was reading about eternal inflation however one thing that remains unclear to me is that how does one explain the force behind inflation, the word "force" is perhaps a non-technical term, the more precise term is "inflation field", the chaotic inflation model says that just...
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    Constants of nature as determined by string theory

    Hi all, I remember in the Elegant Universe (the documentary), at some point the following lines were said: "So what exactly, in nature, sets the values of these 20 constants so precisely? Well the answer could be the extra dimensions in string theory. That is, the tiny, curled up...
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    The cause of topology change

    Hi all, I've been reading on phase changes that occur in manifolds such as flop transitions and conifold transitions for some time but I don't quite understand this one thing: flop transitions mathematically describe how one calabi-yau can change into another and most books mention that but...
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    Tears in spacetime shielded by strings

    Hi all, Alright so while reading through some stuff, I came across something peciluar, string/M-theory state that rips in spacetime are a natural phenomenon and happen all the time. "Edward Witten showed that strings, which have spatial extant, can travel while encircling the tear as it...
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    Changing shape of calabi-yau manifolds: flop transitions

    Hi all, I was reading a paper written by Brian Greene sometime ago on flop transitions where one can essentially change the topology of the manifold but the four-dimensional physics that applied to the older manifold still holds. From that I am trying to extrapolate the following: Is it...
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    Calibi-yau manifolds affecting the size of strings

    Hi all, I am rather new here but I think I am posting in the right place, if not my apologies :) Alright so I've been working on calibi-yau manifolds for some time now and string theory (let's take a generic approach here and not worry about which version) states that the shape of the manifold...
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