Gopakumar–Vafa invariant
id:
gopakumar-vafa-invariant-235-11388820
title:
Gopakumar–Vafa invariant
text:
In theoretical physics, Rajesh Gopakumar and Cumrun Vafa introduced in a series of papers new topological invariants, called Gopakumar–Vafa invariants, that represent the number of BPS states on a Calabi–Yau 3-fold. They lead to the following generating function for the Gromov–Witten invariants on a Calabi–Yau 3-fold M: where β is the class of pseudoholomorphic curves with genus g, λ is the topological string coupling, q β = exp with t β the Kähler parameter of the curve class β , GW are the G
brand slug:
wiki
category slug:
encyclopedia
description:
Topological invariants concerning BPS states
original url:
https://en.wikipedia.org/wiki/Gopakumar%E2%80%93Vafa_invariant
date created:
date modified:
2023-03-02T18:47:28Z
main entity:
{"identifier":"Q18579343","url":"https://www.wikidata.org/entity/Q18579343"}
image:
fields total:
13
integrity:
14