Year: 2026
Type: article
Abstract: We construct the quantum double ramification (DR) hierarchy associated with the Gromov–Witten theory of elliptic curves. We use results of Oberdieck and Pixton on the intersection numbers of the DR cycle, the Gromov–Witten classes of the elliptic curve, and the Hodge class , together with vanishing results for to produce a closed, modular expression for the resulting integrable hierarchy. It is the first explicit nontrivial example of a quantum integrable hierarchy from a cohomological field theory containing fermionic fields, which correspond to the odd classes in the cohomology of the elliptic curve.
DOI: 10.1112/blms.70486
Authors: Paolo Rossi, Sergey Shadrin, Ishan Jaztar Singh
Institutions: University of Padua, University of Amsterdam
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,930
Funder: Università degli Studi di Padova
OpenAlex ID: W7204468777
