# Research

A. Wietek, et al., arXiv:2104.00064, accepted in Phys. Rev. X (2021)

M. Klett, N. Wentzell, T. Schäfer, et al., Phys. Rev. Research

**2**, 033476 (2020)

M. Kitatani, T. Schäfer, et al., Phys. Rev. B

**99**, 041115(R) (2019)

T. Schäfer, et al., Phys. Rev. Lett.

**122**, 227201 (2019)

T. Schäfer, et al., Phys. Rev. Lett.

**119**, 046402 (2017)

*the*fundamental modellization for such interacting quantum systems: electrons can hop from one crystal site to another and the electron-electron interaction is only present, when two electrons occupy the same site. Despite its simplicity, the Hubbard model has not been solved in finite dimensions larger than one and recent years saw a strong increase in the number of computational approaches aiming at the determination its properties. Within this research group, the fundamental properties of the Hubbard model are being investigated, both on the physical as well as on the methodological level.

M. Qin, T. Schäfer, et al., arXiv:2104.00064, to appear in Annual Reviews of Condensed Matter Physics 2022

T. Schäfer et al., Phys. Rev. X

**11**, 011058 (2021)

T. Schäfer et al., Phys. Rev. Lett.

**110**, 246405 (2013)

T. Schäfer and A. Toschi, J. Phys.: Condens. Matter

**33**, 214001 (2021)

O. Gunnarsson, T. Schäfer, et al., Phys. Rev. Lett.

**114**, 236402 (2015)

G. Rohringer et al., Rev. Mod. Phys.

**90**, 025003 (2018)

T. Maier et al., Rev. Mod. Phys.

**77**, 1027 (2005)