Publication details
The α′2 correction from double field theory
| Authors | |
|---|---|
| Year of publication | 2022 |
| Type | Article in Periodical |
| Magazine / Source | Journal of High Energy Physics |
| MU Faculty or unit | |
| Citation | |
| Web | |
| Doi | http://dx.doi.org/10.1007/JHEP11(2022)090 |
| Keywords | Bosonic Strings; Gauge Symmetry; String Duality; Superstrings and Heterotic Strings |
| Description | It is known that the order ?' correction to the tree-level effective action for the bosonic and heterotic string can be described in the framework of Double Field Theory (DFT). Here we determine the DFT action and transformations at order ?'2 by a direct calculation. The result is vastly simpler than previous proposals. We show that this correction reproduces the known ?'2 correction to the heterotic string effective action. The relation of our action to an (implicit) all order proposal coming from the so-called generalized Bergshoeff-de Roo identification is also discussed. |
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