On topological 2D string and intersection theory

Yaron Oz

doi:10.1016/0370-2693(95)00740-C

On topological 2D string and intersection theory

Yaron Oz^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The topological description of 2D string theory at the self-dual radius is studied in the algebro-geometrical formulation of the A_k+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 descendants of the cosmological constant, as well as modifications of this, is shown to imply a disagreement between 2D string correlators and the associated intersection numbers.

Original language	English
Pages (from-to)	135-140
Number of pages	6
Journal	Physics Letters B
Volume	355
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(95)00740-C
State	Published - 27 Jul 1995

Funding

Funders	Funder number
Gcrman-Israeli Foundation for Scientific Research
Israeli Academy of Science
US-Israel Binational Science Foundation
German-Israeli Foundation for Scientific Research and Development

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10.1016/0370-2693(95)00740-C

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abstract = "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 descendants of the cosmological constant, as well as modifications of this, is shown to imply a disagreement between 2D string correlators and the associated intersection numbers.",

author = "Yaron Oz",

note = "Funding Information: *Work supported in part by the US-Israel Binational Science Foundation, the Israeli Academy of Science and GIF - the Gcrman-Israeli Foundation for Scientific Research. {\textquoteright} Email: [email protected]",

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On topological 2D string and intersection theory

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