Finding:

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   Superstring theory

   Superstring theory is an attempt to explain all of the particles and fundamental forces of nature in one theory by modelling them as vibrations of tiny supersymmetric strings.
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   String theory

   Thus D-branes can emit and absorb closed strings; therefore they have mass (since they emit gravitons) and — in superstring theories — charge as well (since they emit closed strings which are gauge bosons). ... Superstring theory
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   Type II string theory

   superstring theory
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   Theory of everything

   Unsolved problems in physics: Is string theory, superstring theory, or M-theory, or some other variant on this theme, a step on the road to a "theory of everything", or just a blind alley?
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   Supergravity

   However, only the first two Lie algebras can be gotten from superstring theory.
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   String duality

   Superstring theories related by S-duality are: type I superstring theory with heterotic SO(32) superstring theory, and type IIB theory with itself.
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   Quantum gravity

   Polchinski, Joseph (1998b), String Theory Vol. II: Superstring Theory and Beyond, Cambridge University Press, ISBN 0-521-63304-4
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   M-theory

   Finally, since superstring string theories are supersymmetric, one expects to see supersymmetry appearing in the low-energy approximation. ... | Superstring theory
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   String (physics)

   The oldest superstring theory containing open strings was type I string theory. ... "Introduction to Superstring Theory".
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    Hanany-Witten transition

    The original Hanany-Witten transition was discovered in type IIB superstring theory in flat, 10-dimensional Minkowski space.

Explore the following pages on Powerset:

• Superstring theory,
• String theory,
• Type II string theory,
• Theory of everything,
• Supergravity,
• String duality,
• Quantum gravity,
• M-theory,
• String (physics),
• Hanany-Witten transition