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- GSO_projection abstract "The GSO projection (named after Ferdinando Gliozzi, Joël Scherk, and David I. Olive) is an ingredient used in constructing a consistent model in superstring theory. The projection is a selection of a subset of possible vertex operators in the worldsheet conformal field theory (CFT)—usually those with specific worldsheet fermion number and periodicity conditions. Such a projection is necessary to obtain a consistent worldsheet CFT. For the projection to be consistent, the set A of operators retained by the projection must satisfy: Closure — The operator product expansion (OPE) of any two operators in A contains only operators which are in A. Mutual locality — There are no branch cuts in the OPE of any two operators in the set A. Modular invariance — The partition function on the two-torus of the theory containing only the operators in A respects modular invariance.Starting from the same worldsheet CFT, different choices in the GSO projection will lead to string theories with different physical particles and properties in spacetime. For example, the Type II and Type 0 string theories result from different GSO projections on the same worldsheet theory. Furthermore, the two distinct Type II theories, IIA and IIB, differ in their GSO projections. In building models of realistic string vacua (as opposed to toy models), one typically chooses a GSO projection which eliminates the tachyonic ground state of the string and preserves spacetime supersymmetry.".
- GSO_projection wikiPageID "8501273".
- GSO_projection wikiPageLength "1957".
- GSO_projection wikiPageOutDegree "22".
- GSO_projection wikiPageRevisionID "639051568".
- GSO_projection wikiPageWikiLink Branch_point.
- GSO_projection wikiPageWikiLink Category:String_theory.
- GSO_projection wikiPageWikiLink Conformal_field_theory.
- GSO_projection wikiPageWikiLink Consistency.
- GSO_projection wikiPageWikiLink David_Olive.
- GSO_projection wikiPageWikiLink Ferdinando_Gliozzi.
- GSO_projection wikiPageWikiLink Fermion.
- GSO_projection wikiPageWikiLink Joseph_Polchinski.
- GSO_projection wikiPageWikiLink Joël_Scherk.
- GSO_projection wikiPageWikiLink Modular_invariance.
- GSO_projection wikiPageWikiLink Operator_product_expansion.
- GSO_projection wikiPageWikiLink Periodic_function.
- GSO_projection wikiPageWikiLink Projection_(linear_algebra).
- GSO_projection wikiPageWikiLink Spacetime.
- GSO_projection wikiPageWikiLink Superstring_theory.
- GSO_projection wikiPageWikiLink Supersymmetry.
- GSO_projection wikiPageWikiLink Tachyon.
- GSO_projection wikiPageWikiLink Torus.
- GSO_projection wikiPageWikiLink Toy_model.
- GSO_projection wikiPageWikiLink Type_0_string_theory.
- GSO_projection wikiPageWikiLink Type_II_string_theory.
- GSO_projection wikiPageWikiLink Worldsheet.
- GSO_projection wikiPageWikiLinkText "GSO projection".
- GSO_projection wikiPageUsesTemplate Template:String-theory-stub.
- GSO_projection subject Category:String_theory.
- GSO_projection hypernym Ingredient.
- GSO_projection type ChemicalCompound.
- GSO_projection type Physic.
- GSO_projection comment "The GSO projection (named after Ferdinando Gliozzi, Joël Scherk, and David I. Olive) is an ingredient used in constructing a consistent model in superstring theory. The projection is a selection of a subset of possible vertex operators in the worldsheet conformal field theory (CFT)—usually those with specific worldsheet fermion number and periodicity conditions. Such a projection is necessary to obtain a consistent worldsheet CFT.".
- GSO_projection label "GSO projection".
- GSO_projection sameAs Q611375.
- GSO_projection sameAs Projection_GSO.
- GSO_projection sameAs Proiezione_GSO.
- GSO_projection sameAs GSO_사영.
- GSO_projection sameAs Projeção_GSO.
- GSO_projection sameAs m.0275qwy.
- GSO_projection sameAs Q611375.
- GSO_projection wasDerivedFrom GSO_projection?oldid=639051568.
- GSO_projection isPrimaryTopicOf GSO_projection.