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- String_theory abstract "In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. In string theory, the different types of observed elementary particles arise from the different quantum states of these strings. In addition to the types of particles postulated by the standard model of particle physics, string theory naturally incorporates gravity, and is therefore a candidate for a theory of everything, a self-contained mathematical model that describes all fundamental forces and forms of matter. Aside from this hypothesized role in particle physics, string theory is now widely used as a theoretical tool in physics, and it has shed light on many aspects of quantum field theory and quantum gravity.The earliest version of string theory, called bosonic string theory, incorporated only the class of particles known as bosons, although this theory developed into superstring theory, which posits that a connection (a "supersymmetry") exists between bosons and the class of particles called fermions. String theory requires the existence of extra spatial dimensions for its mathematical consistency. In realistic physical models constructed from string theory, these extra dimensions are typically compactified to extremely small scales.String theory was first studied in the late 1960s as a theory of the strong nuclear force before being abandoned in favor of the theory of quantum chromodynamics. Subsequently, it was realized that the very properties that made string theory unsuitable as a theory of nuclear physics made it an outstanding candidate for a quantum theory of gravity. Five consistent versions of string theory were developed before it was realized in the mid-1990s that these theories could be obtained as different limits of a conjectured eleven-dimensional theory called M-theory.Many theoretical physicists (among them Stephen Hawking, Edward Witten, and Juan Maldacena) believe that string theory is a step towards the correct fundamental description of nature. This is because string theory allows for the consistent combination of quantum field theory and general relativity, agrees with general insights in quantum gravity such as the holographic principle and black hole thermodynamics, and because it has passed many non-trivial checks of its internal consistency. According to Hawking in particular, "M-theory is the only candidate for a complete theory of the universe." Other physicists, such as Richard Feynman, Roger Penrose, and Sheldon Lee Glashow, have criticized string theory for not providing novel experimental predictions at accessible energy scales and say that it is a failure as a theory of everything.".
- String_theory thumbnail String_theory.svg?width=300.
- String_theory wikiPageExternalLink witten.
- String_theory wikiPageExternalLink 28_1.shtml.
- String_theory wikiPageExternalLink superstringtheory.com.
- String_theory wikiPageExternalLink whystringtheory.com.
- String_theory wikiPageExternalLink is-string-theory-even-wrong.
- String_theory wikiPageExternalLink blog.
- String_theory wikiPageExternalLink kmath632.htm.
- String_theory wikiPageExternalLink elegant.
- String_theory wikiPageExternalLink beyondstringtheory.
- String_theory wikiPageExternalLink string.pdf.
- String_theory wikiPageExternalLink strings.
- String_theory wikiPageExternalLink a-laymans-explanation-for-string-theory.
- String_theory wikiPageID "28305".
- String_theory wikiPageRevisionID "606634552".
- String_theory hasPhotoCollection String_theory.
- String_theory subject Category:Concepts_in_physics.
- String_theory subject Category:Dimension.
- String_theory subject Category:Multi-dimensional_geometry.
- String_theory subject Category:Particle_physics.
- String_theory subject Category:Physical_cosmology.
- String_theory subject Category:Physics_beyond_the_Standard_Model.
- String_theory subject Category:String_theory.
- String_theory subject Category:Theoretical_physics.
- String_theory comment "In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. In string theory, the different types of observed elementary particles arise from the different quantum states of these strings.".
- String_theory label "Snaartheorie".
- String_theory label "String theory".
- String_theory label "Stringtheorie".
- String_theory label "Teoria das cordas".
- String_theory label "Teoria delle stringhe".
- String_theory label "Teoria strun".
- String_theory label "Teoría de cuerdas".
- String_theory label "Théorie des cordes".
- String_theory label "Теория струн".
- String_theory label "نظرية الأوتار".
- String_theory label "弦理論".
- String_theory label "弦理論".
- String_theory sameAs Teorie_strun.
- String_theory sameAs Stringtheorie.
- String_theory sameAs Θεωρία_χορδών.
- String_theory sameAs Teoría_de_cuerdas.
- String_theory sameAs Korden_teoria.
- String_theory sameAs Théorie_des_cordes.
- String_theory sameAs Teori_dawai.
- String_theory sameAs Teoria_delle_stringhe.
- String_theory sameAs 弦理論.
- String_theory sameAs 끈_이론.
- String_theory sameAs Snaartheorie.
- String_theory sameAs Teoria_strun.
- String_theory sameAs Teoria_das_cordas.
- String_theory sameAs m.07094.
- String_theory sameAs Q33198.
- String_theory sameAs Q33198.
- String_theory wasDerivedFrom String_theory?oldid=606634552.
- String_theory depiction String_theory.svg.
- String_theory homepage superstringtheory.com.
- String_theory isPrimaryTopicOf String_theory.