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Peer-reviewedCC BY 4.0Journal of High Energy Physics

Gravitational instantons from closed superstring field theory

  • Ivo Sachs1
  • Xianghang Zhang1,2
  1. 1Ludwig-Maximilians-Universität München
  2. 2Nagoya University
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Abstract

We test exact marginality of the deformation describing the resolution of a ℤ2 orbifold by analyzing the closed superstring equations of motion to third order in the size, including α′ corrections. We find that the third order correction is unobstructed for all deformation moduli. We are also able to reproduce the Eguchi-Hanson gravitational instanton up to the second order in the field theory limit with a suitable choice of moduli.

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Cite

BibTeXRIS
BibTeX
@article{sachs2026gravitational,
  title = {{Gravitational instantons from closed superstring field theory}},
  author = {Ivo Sachs and Xianghang Zhang},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = nov,
  doi = {10.1007/jhep11(2026)058},
  url = {https://link.springer.com/article/10.1007/JHEP11(2026)058},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Gravitational instantons from closed superstring field theory
AU  - Ivo Sachs
AU  - Xianghang Zhang
PY  - 2026
DA  - 2026/11/06
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep11(2026)058
UR  - https://link.springer.com/article/10.1007/JHEP11(2026)058
AB  - We test exact marginality of the deformation describing the resolution of a ℤ2 orbifold by analyzing the closed superstring equations of motion to third order in the size, including α′ corrections. We find that the third order correction is unobstructed for all deformation moduli. We are also able to reproduce the Eguchi-Hanson gravitational instanton up to the second order in the field theory limit with a suitable choice of moduli.
SN  - 1029-8479
ER  -