Stories
Slash Boxes
Comments

SoylentNews is people

posted by martyb on Sunday July 26 2015, @07:10PM   Printer-friendly
from the BASIC:-But-Any-String-Is-Complicated! dept.

Carlos Shahbazi has presented the first two articles of a series that introduce the layman to the basics of String Theory.
link: http://mappingignorance.org/2015/05/06/the-geometry-of-string-theory-compactifications-i-the-basics/

"The sphere is also a simple example of a compact manifold, which is a particular class of manifolds of utmost importance in String Theory compactifications, as we will see in a moment. The compactness condition can be intuitively understood using Euclidean space. A manifold embedded in Euclidean space, as the sphere in figure 3, is compact if and only if it is bounded, namely it is contained in a finite size region of E and it is closed, namely it contains all its limiting points."

[The second article is "The geometry of String Theory compactifications (II): finding the Calabi-Yau manifold" -Ed.]

If that's too easy for you; the same author also has "Black hole solutions of N=2, d=4 super-gravity with a quantum correction, in the H-FGK formalism"
link: http://www.mathpubs.com/author/Carlos+S.+Shahbazi


Original Submission

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 3, Informative) by c0lo on Sunday July 26 2015, @09:08PM

    by c0lo (156) Subscriber Badge on Sunday July 26 2015, @09:08PM (#213978) Journal

    If only we had experimental evidence of reaction-mass free thrusters

    You mean something like EM drive [wikipedia.org]? 'Cause even NASA seems to have experimentally detected something.

    --
    https://www.youtube.com/watch?v=aoFiw2jMy-0 https://soylentnews.org/~MichaelDavidCrawford
    Starting Score:    1  point
    Moderation   +1  
       Informative=1, Total=1
    Extra 'Informative' Modifier   0  
    Karma-Bonus Modifier   +1  

    Total Score:   3