SONATA junior group

From August 2025 to September 2026 my work at Wrocław University was supported by a SONATA grant from the Polish National Science Centre (NCN), project No. 2024/55/D/ST2/01205 funded by the NCN for the project "New perspectives on Sigma Models from Integrability, Generalised Geometry and Decoupling Limits"

People (Due to the premature ending of the project in September 2026 the positions were not filled,)

• Postdoc (from Autumn 2026)

• PhD-student (from Autumn 2026)

External:

• Alex Swash (PhD student 2023-2027 in group of Falk Hassler, co-supervision)

Guests:

• Josh O'Connor (U Mons/RBI Zagreb), November/January 2026

Publications:

• Falk Hassler, David Osten & Alex Swash: Tensor hierarchy from deformation quantisation (preprint arXiv:2509.04595)

• Josh O'Connor & David Osten: Duality-covariant particles and exotic branes (accepted in JHEP, preprint arXiv:2606.26504)

• David Osten: Generalised Cartan Geometry, PoS CORFU2025 (2025) 373, preprint arXiv:2605.21809)

• Falk Hassler, David Osten & Alex Swash: Gauged Extended Field Theory and Generalised Cartan Geometry (Phys. Rev. D 113 (2026) 6, 066017, preprint arXiv:2509.04595)

• David Osten: The Manakov-Zakharov-Ward model as an integrable decoupling limit of the membrane (Phys.Rev.D 113 (2026) 6, L061902, preprint arXiv:2505.17184)

The SONATA project contributed considerably to making the 2026 edition of 'Integrability, Dualities and Deformations' , with over 70 participants from Europe, South America and Asia, possible at Wroclaw University.