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String theory is a broad and varied subject that attempts to address a number of deep questions of fundamental physics. String theory has contributed a number of advances to mathematical physics, which have been applied to a variety of problems in black hole physics, early universe cosmology, nuclear physics, and condensed matter physics, and ...
String vibrations. In physics, a string is a physical entity postulated in string theory and related subjects. Unlike elementary particles, which are zero-dimensional or point-like by definition, strings are one-dimensional extended entities. Researchers often have an interest in string theories because theories in which the fundamental ...
In algebraic geometry and theoretical physics, mirror symmetry is a relationship between geometric objects called Calabi–Yau manifolds.The term refers to a situation where two Calabi–Yau manifolds look very different geometrically but are nevertheless equivalent when employed as extra dimensions of string theory.
Each theory of quantum gravity uses the term "quantum geometry" in a slightly different fashion. String theory, a leading candidate for a quantum theory of gravity, uses it to describe exotic phenomena such as T-duality and other geometric dualities, mirror symmetry, topology-changing transitions [clarification needed], minimal possible distance scale, and other effects that challenge intuition.
'Superstring theory' is a shorthand for supersymmetric string ... One of the deepest open problems in theoretical physics is ... A more complex compact geometry is ...
The problem of developing a non-perturbative formulation of string theory was one of the original motivations for studying the AdS/CFT correspondence. [37] As explained above, the correspondence provides several examples of quantum field theories that are equivalent to string theory on anti-de Sitter space.
Vol. 1: An introduction to the bosonic string. ISBN 0-521-63303-6. Vol. 2: Superstring theory and beyond. ISBN 0-521-63304-4. Szabo, Richard J. (Reprinted 2007) An Introduction to String Theory and D-brane Dynamics. Imperial College Press. ISBN 978-1-86094-427-7. Zwiebach, Barton (2004) A First Course in String Theory. Cambridge University Press.
Bosonic string theory; Superstring theory. Type I string; Type II string. Type IIA string theory; Type IIB string theory; Heterotic string; N=2 superstring; M-theory. Matrix theory; Introduction to M-theory; F-theory; String field theory; Matrix string theory; Nonlinear sigma model; Tachyon condensation; RNS formalism; String theory landscape ...