منابع مشابه
Topological String
Following suggestions of Nekrasov and Siegel, a non-minimal set of fields are added to the pure spinor formalism for the superstring. Twistedˆc = 3 N=2 generators are then constructed where the pure spinor BRST operator is the fermionic spin-one generator, and the formalism is interpreted as a critical topological string. Three applications of this topological string theory include the super-Po...
متن کاملOn Topological 2D String and Intersection Theory
The topological description of 2D string theory at the self-dual radius is studied in the algebro-geometrical formulation of the Ak+1 topological models at k = −3. Genus zero correlators of tachyons and their gravitational descendants are computed as intersection numbers on moduli space and compared to 2D string results. The interpretation of negative momentum tachyons as gravitational descenda...
متن کاملTopological Terms in String Theory on Orbifolds
We study toroidal orbifold models with topologically invariant terms in the path integral formalism and give physical interpretations of the terms from an operator formalism point of view. We briefly discuss a possibility of a new class of modular invariant orbifold models. Work supported by the Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture (No.3018381...
متن کاملOn Link Invariants and Topological String Amplitudes
We explicitly show that the new polynomial invariants for knots, upto nine crossings, agree with the Ooguri-Vafa conjecture relating Chern-Simons gauge theory to topological string theory on the resolution of the conifold. From the multi-component link invariants in SU(N) Chern-Simons theory, we suggest a form for the new polynomial invariants. Email: [email protected] Email: [email protected]...
متن کاملRemarks on tree-level topological string theories
A few observations concerning topological string theories at the string-tree level are presented: (1) The tree-level, large phase space solution of an arbitrary model is expressed in terms of a variational problem, with an “action” equal, at the solution, to the one-point function of the puncture operator, and found by solving equations of Gauss-Manin type; (2) For Ak Landau-Ginzburg models, an...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2000
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(00)00075-4